{"title":"Modules","description":"","products":[{"product_id":"haljia-ramps-1-4-mechanical-endstop-switch-compatible-with-reprap-mendel-3d-printer-with-70cm-cable","title":"HALJIA RAMPS 1.4 Mechanical Endstop Switch Compatible with RepRap Mendel 3D Printer With 70cm Cable","description":"\u003cul class=\"a-unordered-list a-vertical a-spacing-mini\" data-mce-fragment=\"1\"\u003e\n\u003cli\u003e\u003cspan class=\"a-list-item\"\u003eIt using 22AWG wire, copper wire inside is very thick, can be resistant to current 2A, 300V voltage.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"a-list-item\"\u003eAn insulating layer over a wide range of temperatures, up to 80 degrees.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"a-list-item\"\u003eIs the common connection of thin copper wire can not match.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"a-list-item\"\u003eNot easy to pull off, plug it convenient, for ease of use, plug the other side to do the one, you can use the direct plug.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"a-list-item\"\u003eBoard Size: Approx. 39 x 16 x 7mm \/ 1.54 x 0.63 x 0.28 inch, Cable Length: Approx. 70 cm \/ 27.56 inch\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 class=\"default\"\u003eProduct description\u003c\/h2\u003e\n\u003cp\u003e\u003cspan class=\"a-list-item\"\u003e\u003cspan\u003eRed line connecting VCC (ramps of +)\u003cbr\u003eConnect the black wire GND (ramps of -)\u003cbr\u003eGreen Line connection SIGNAL (ramps in s)\u003cbr\u003e\u003cbr\u003eTips: Under normal circumstances, the system must be configured to at least three mechanical switches.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan class=\"a-text-bold\"\u003ePackage Included:\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e1 x 3D Printer Endstop Switch\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"HALJIA","offers":[{"title":"Default Title","offer_id":42183892009206,"sku":"3DP170102","price":3.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0550\/2523\/8262\/products\/1_c3e18f41-12c5-4c7d-bfd5-4ae4f4e81e10.jpg?v=1638326733"},{"product_id":"haljia-ds1302-real-time-clock-module-compatible-with-arduino-avr-arm-pic-smd","title":"HALJIA DS1302 Real Time Clock Module Compatible with Arduino AVR ARM PIC SMD","description":"\u003cul class=\"a-unordered-list a-vertical a-spacing-mini\" data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eModule operating voltage compatible 3.3V\/5V, can be connected with 5V and 3.3V microcontroller\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eDS1302 is made large 8-pin DIP chip, chip below IC socket for easy replacement and swap chips\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eBackup battery is genuine celestial CR2032, Voltage 3V, current 260mAh, non-rechargeable batteries. Theoretical data retention time is more than 10 years!\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eCrystal 32.768KHz, matching capacitance 6pF, size 2 * 6mm\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 class=\"default\"\u003eProduct description\u003c\/h2\u003e\n\u003cdiv class=\"a-section a-spacing-small\" id=\"productDescription\"\u003e\n\u003cp\u003e\u003cspan\u003eReal-time clock with energy clculations before 2100 seconds, minutes, hours, day, week, month, year capacity, as well as the ability to leap year adjustment\u003cbr\u003eserial I \/ O ports such a way that a minimum number of pins\u003cbr\u003eWide operating voltage range 2.0 5.5V\u003cbr\u003e2.0V, operating current of less than 300nA\u003cbr\u003eRead \/ write clock or RAM data transfer mode, there are two single-byte and multi-byte transfer mode transmission character set\u003cbr\u003e8-pin DIP package or an optional 8-pin SOIC surface mount package under\u003cbr\u003eSimple 3-wire interface\u003cbr\u003eVcc = 5V and TTL compatible\u003cbr\u003eOptional industrial temperature range of -40 to +85\u003cbr\u003eDual power tubes used for the main power supply and backup power supply\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"HALJIA","offers":[{"title":"Default Title","offer_id":42183973830902,"sku":"417961417961","price":5.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0550\/2523\/8262\/products\/1_ef52a323-a8db-4bce-ad48-d0b6685297f2.jpg?v=1638328781"},{"product_id":"haljia-hy-srf05-ultrasonic-distance-sensor-module-measuring-module-compatible-with-arduino","title":"HALJIA HY-SRF05 Ultrasonic Distance Sensor Module Measuring Module Compatible with Arduino","description":"\u003cul class=\"a-unordered-list a-vertical a-spacing-mini\" data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eUse voltage: DC5V\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eStatic current: \u0026lt;2mA\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eDetection distance: 2cm-450cm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eThe performance of this module is stable and the measurement distance is accurate. Can and foreign SRF05, SRF02 ultrasonic distance measuring module and other comparable.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eThe module is with high-precision, the blind zone (2cm) is super close, and stable ranging is a powerful basis for this product to successfully enter the market!\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-text-bold\"\u003eTechnical Parameters:\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e1: Use voltage: DC5V \u003cbr\u003e2: Quiescent current: less than 2mA \u003cbr\u003e3: Level output: 5V high \u003cbr\u003e4: Level output: bottom 0V \u003cbr\u003e5: Induction angle: no more than 15 degrees \u003cbr\u003e6: Detection distance: 2cm-450cm \u003cbr\u003e7: High precision: up to 0.3cm \u003cbr\u003eThe use of this product: a control port sends a high level of 10US or more, you can wait for the high level output at the receiving port. When there is an output, you can start the timer, when the port becomes low, you can read the timing. The value of the device, at this time is the time of the distance measurement, in order to calculate the distance. Such continuous cycle measurement, you can reach the value of your mobile measurement. \u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan class=\"a-text-bold\"\u003eWorking principle of the module:\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e(1) Using IO trigger ranging to give a high level signal of at least 10us; \u003cbr\u003e(2) The module automatically sends eight 40khz square waves to automatically detect whether there is a signal return; \u003cbr\u003e(3) There is a signal return, a high level is output through IO, and the high level continues Ultrasonic time from launch to return. Test distance = (high time * sound speed (340M \/ S)) \/ 2\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan class=\"a-text-bold\"\u003ePackage Included:\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e1 x hy-srf05 ultrasonic distance sensor module\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"HALJIA","offers":[{"title":"Default Title","offer_id":42183998013686,"sku":"418349418349A","price":4.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0550\/2523\/8262\/products\/1_9c06f290-37f2-47bb-bf64-0ddc463aef44.jpg?v=1638329558"},{"product_id":"haljia-dc-dc-booster-module-2a-booster-board-compatible-with-arduino-raspberry-pi-diy-etc","title":"HALJIA DC-DC Booster Module 2A Booster Board Compatible with Arduino Raspberry Pi DIY Etc","description":"\u003cul class=\"a-unordered-list a-vertical a-spacing-mini\" data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003ePressure regulating mode\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003ePotentiometer in the face of the chest, turn anti-clockwise to boost!\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 class=\"default\"\u003eProduct description\u003c\/h2\u003e\n\u003cp\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003e\u003cspan\u003e1 module characteristics (boost module):\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e1) maximum output current: 2A\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e2) input voltage: 2 V ~ 24 V\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e3) maximum output voltage: \u0026gt; V 5V-28\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e4) Efficiency: \u0026gt; 93%\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003e2 Mechanical properties:\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e1). Product size: 36 mm x 17 mm x 14 mm\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003e3 using method\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eAfter the module, + and - 2 ~ 24 V, the potentiometer can be adjusted to adjust the output voltage, the output voltage is more than the input voltage\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003e4 note\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e1). Input voltage should not exceed the maximum input voltage\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e2). Peak current output current is no more than 2A\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eThere are customers reflect the module output voltage can not be adjusted, always equal to the input voltage. When you encounter this kind of problem, please counter clockwise rotation potentiometer 10 laps, and then use the module can adjust the normal voltage.\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"HALJIA","offers":[{"title":"Default Title","offer_id":42184069775606,"sku":"418679418679","price":3.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0550\/2523\/8262\/products\/1_c47977c9-4915-4484-bf29-52a7affe6bd3.jpg?v=1638331085"},{"product_id":"haljia-gpio-expansion-board-module-diy-straight-pcb-40-pin-compatible-with-raspberry-pi-2-model-b-raspberry-pi-b","title":"HALJIA GPIO Expansion Board Module DIY Straight PCB 40-Pin Compatible with Raspberry Pi 2 Model B \u0026 Raspberry Pi B+","description":"\u003cul class=\"a-unordered-list a-vertical a-spacing-mini\" data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eHigh quality, 100% new brand.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eFor Raspberry Pi 2 Model B \u0026amp; Raspberry Pi B+\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eGPIO Expansion Board Module PCB 40-Pin\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eSmaller volume. Has been completely welded.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eQuality packaging, pearl cotton stitch protection.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-text-bold\"\u003ePacking List:\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e1 * GPIO Expansion Module\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"HALJIA","offers":[{"title":"Default Title","offer_id":42184082981110,"sku":"419394419394A","price":5.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0550\/2523\/8262\/products\/1_7c88126c-9613-40ff-ad35-26b98ec28f97.jpg?v=1638331759"},{"product_id":"haljia-tcrt5000-reflective-optical-sensor-ir-switch-compatible-with-arduino-2pcs","title":"HALJIA TCRT5000 Reflective Optical Sensor IR Switch Compatible with Arduino (2PCS)","description":"\u003cdiv\u003eCompact construction, sense the presence of an object by using the reflective IR beam from the object.\u003cbr\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003e\u003cspan\u003eConsists of a phototransistor.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eSnap-in construction for PCB mounting.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003ePlastic polycarbonate housing construction which prevents crosstalk.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003ePosition sensor for shaft encoder.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eDetection of reflective materials such as paper, IBM cards, magnetic tapes, etc.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eLimit switch foe mechanical motions in VCR.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eGeneral purpose - wherever the space is limited.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003ePacking List:\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e2 x TCRT5000\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"HALJIA","offers":[{"title":"Default Title","offer_id":42184100118774,"sku":"419433419433","price":4.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0550\/2523\/8262\/products\/1_eb088115-40c4-4802-8518-2dee6da4f303.jpg?v=1638337936"},{"product_id":"haljia-digital-light-intensity-sensor-module-photo-resistor-photoresistor-compatible-with-arduino-uno","title":"HALJIA Digital Light Intensity Sensor Module Photo Resistor Photoresistor Compatible with Arduino UNO","description":"\u003cul class=\"a-unordered-list a-vertical a-spacing-mini\" data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eThis photosensitive module is sensitive to the light, usually used for detecting the ambient brightness and light intensity.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eWhen there is no light or the light intensity cannot reach the value, DO output is high level. when light intensity over than the value, the module DO output is low level.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eThe module digital output DO can be directly connected with the microcontroller, use microcontroller detect high or low level, so that can detect the environmental light intensity change.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eCan use this board digital output DO port drive relay module directly, can also use as a photoelectric switch.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eApplication: Light intensity detection, intelligent car light module, with directional, only sense light source in front of the sensor, better to use for searching light.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-text-bold\"\u003eFeatures:\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e1. Using the sensitive type photosensitive resistance sensor. \u003cbr\u003e2. The comparator output signal clean waveform is good, driving ability, than 15mA. \u003cbr\u003e3. With adjustable potentiometer can adjust the brightness of the light detected. \u003cbr\u003e4. Working voltage: 3.3V-5V \u003cbr\u003e5. The output format: Digital switching output (0 and 1) \u003cbr\u003e6. With bolt holes for easy installation. \u003cbr\u003e7. Size: 3.2cm x 1.4cm \u003cbr\u003e8. Using a wide voltage LM393 comparator. \u003cbr\u003e9. Application: Widely used in light intensity detection. \u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan class=\"a-text-bold\"\u003ePackage Inculded:\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e1 x Light Detection Sensor Module\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"HALJIA","offers":[{"title":"Default Title","offer_id":42184109818102,"sku":"420031420031A","price":4.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0550\/2523\/8262\/products\/1_94c17daf-43c7-470d-b018-eb7c9b1749e6.jpg?v=1638338586"},{"product_id":"haljia-esp8266-serial-wifi-transceiver-module-send-receive-lwip-ap-sta-compatible-with-diy-or-arduino-uno-r3-mega2560-nano","title":"HALJIA ESP8266 Serial Wifi Transceiver Module Send Receive LWIP AP STA Compatible with DIY or Arduino UNO R3 Mega2560 Nano","description":"\u003cul class=\"a-unordered-list a-vertical a-spacing-mini\" data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eSupport 3 modes: AP, STA, AP+STA\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003ePerfect and simple AT commands\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eESP8266 is a highly integrated chip designed for the needs of a new connected world.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eESP8266 has powerful on-board processing and storage capabilities that allow it to be integrated with the sensors and other application specific devices through its GPIOs with minimal development up-front and minimal loading during runtime.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eIts high degree of on-chip integration allows for minimal external circuitry, and the entire solution, including front-end module, is designed to occupy minimal PCB area.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 class=\"default\"\u003eProduct description\u003c\/h2\u003e\n\u003cp\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003e\u003cspan\u003eSDIO 2.0, SPI, UART\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e32-pin QFN package\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eIntegrated RF switch, balun, 24dBm PA, DCXO, and PMU\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eIntegrated RISC processor, on-chip memory and external memory interfaces\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eIntegrated MAC\/baseband processors\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eQuality of Service management\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eI2S interface for high fidelity audio applications\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eOn-chip low-dropout linear regulators for all internal supplies\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eProprietary spurious-free clock generation architecture\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eIntegrated WEP, TKIP, AES, and WAPI engines \u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eSolutions\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eSupports APSD for optimal VoIP applications\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003ePatented spurious noise cancellation algorithm for integration in SOC applications\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eSupports Bluetooth co-existence interface\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eSelf-calibrated RF to ensure optimal performance under all operating conditions\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eZero factory tuning\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eNo external RF components\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eSpecifications\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003e802.11 b\/g\/n\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eWi-Fi Direct (P2P), soft-AP\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eIntegrated TCP\/IP protocol stack\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eIntegrated TR switch, balun, LNA, power amplifier and matching network\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eIntegrated PLLs, regulators, DCXO and power management units\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e+19.5dBm output power in 802.11b mode\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003ePower down leakage current of \u0026lt;10uA\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eIntegrated low power 32-bit CPU could be used as application processor\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eSDIO 1.1\/2.0, SPI, UART\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eSTBC, 1¡Á1 MIMO, 2¡Á1 MIMO\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eA-MPDU \u0026amp; A-MSDU aggregation \u0026amp; 0.4ms guard interval\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eWake up and transmit packets in \u0026lt;2ms\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eStandby power consumption of \u0026lt;1.0mW (DTIM3)\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eHelp your development more easy.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eESP8266 Serial WIFI Module Communite Forum\u0026gt;\u0026gt; Detail about ESP8266: www.esp8266.com\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eRefer to: https:\/\/nurdspace.nl\/ESP8266#Translated_datasheet\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003ehttp:\/\/www.electrodragon.com\/w\/Category:ESP8266\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003ehttps:\/\/www.zybuluo.com\/kfihihc\/note\/31135\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003e1. High quality \u0026amp; low price\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e2. LWIP agreement\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e3. Support 3 modes: AP, STA, AP+STA\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e4. Perfect and simple AT commands\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"HALJIA","offers":[{"title":"Default Title","offer_id":42184117846262,"sku":"420066420066","price":4.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0550\/2523\/8262\/products\/1_d546262b-9472-41cb-87a0-2945d0f202e0.jpg?v=1638338728"},{"product_id":"haljia-tf-sd-module-control-interface-micro-sd-card-tf-card-read-and-write-sdio-spi-memory-card-compatible-with-arduino","title":"HALJIA TF SD Module Control Interface Micro SD Card TF Card Read and Write SDIO SPI Memory Card Compatible with Arduino","description":"\u003cul class=\"a-unordered-list a-vertical a-spacing-mini\" data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eControl interface: SDIO and SPI\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eFor Arduino DIY ARM etc\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-text-bold\"\u003ePacking List\u003c\/span\u003e\u003cspan\u003e:\u003cbr\u003e1 x TF\/Micro SD module\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"HALJIA","offers":[{"title":"Default Title","offer_id":42184327168246,"sku":"420244420244","price":3.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0550\/2523\/8262\/products\/1_bf3c240c-4343-4936-a405-767630784211.jpg?v=1638339227"},{"product_id":"haljia-pcf8591-ad-da-converter-module-analog-to-digital-and-analog-to-digital-conversion-compatible-with-arduino","title":"HALJIA PCF8591 AD\/DA Converter Module Analog to Digital And Analog to Digital Conversion Compatible with Arduino","description":"\u003cul class=\"a-unordered-list a-vertical a-spacing-mini\" data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eThe PCF8591 is a single-chip, single-supply low power 8-bit CMOS data acquisition device with four analog inputs, one analog output and a serial I2C-bus interface\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eThree address pins A0, A1 and A2 are used for programming the hardware address, allowing the use of up to eight devices connected to the I2C-bus without additional hardware Address, control and data to and from the device are transferred serially via the two-line bidirectional I2C-bus\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eSingle power supply\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eOperating supply voltage 2.5 V to 6 V\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 class=\"default\"\u003eProduct description\u003c\/h2\u003e\n\u003cdiv class=\"a-section a-spacing-small\" id=\"productDescription\"\u003e\n\u003cp\u003e\u003cspan\u003eThe PCF8591 is a single-chip, single-supply low power 8-bit CMOS data acquisition device with four analog inputs, one analog output and a serial I2C-bus interface\u003cbr\u003eThree address pins A0, A1 and A2 are used for programming the hardware address, allowing the use of up to eight devices connected to the I2C-bus without additional hardware\u003cbr\u003eAddress, control and data to and from the device are transferred serially via the two-line bidirectional I2C-bus\u003cbr\u003eSingle power supply\u003cbr\u003eOperating supply voltage 2.5 V to 6 V\u003cbr\u003eLow standby current\u003cbr\u003eSerial input\/output via I2C-bus\u003cbr\u003eAddress by 3 hardware address pins\u003cbr\u003eSampling rate given by I2C-bus speed\u003cbr\u003e4 analog inputs programmable as single-ended or differential inputs\u003cbr\u003eAuto-incremented channel selection\u003cbr\u003eAnalog voltage range from VSS to VDD\u003cbr\u003eOn-chip track and hold circuit\u003cbr\u003e8-bit successive approximation A\/D conversion\u003cbr\u003eMultiplying DAC with one analog output\u003cbr\u003eApplications:\u003cbr\u003eClosed loop control systems\u003cbr\u003eLow power converter for remote data acquisition\u003cbr\u003eBattery operated equipment\u003cbr\u003eAcquisition of analog values in automotive, audio and TV applications\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDownload Link： \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ehttp:\/\/download.haljia.com\/download\/Board\/PCF8591\/PCF8591.rar\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cbr\u003ePacking List\u003cbr\u003e1 x PCF8591 AD\/DA module\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"HALJIA","offers":[{"title":"Default Title","offer_id":42184335130870,"sku":"420245420245","price":5.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0550\/2523\/8262\/products\/1_d224ec31-7897-473b-ad56-e25c97da88d2.jpg?v=1638349494"},{"product_id":"haljia-ky-040-rotary-encoder-brick-sensor-development-compatible-with-arduino-avr-pic","title":"HALJIA KY-040 Rotary Encoder Brick Sensor Development Compatible with Arduino AVR PIC","description":"\u003cul class=\"a-unordered-list a-vertical a-spacing-mini\" data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eBy rotating the rotary encoder can be counted in the positive direction and the reverse direction during rotation of the output pulse frequency, unlike rotary potentiometer counter, which species rotation counts are not limited.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eWith the buttons on the rotary encoder can be reset to its initial state, that starts counting from 0.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003e\u003cspan\u003eHow it works: \u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003e\u003cspan\u003eincremental encoder is a displacement of the rotary pulse signal is converted to a series of digital rotary sensors. These pulses are used to control angular displacement. In Eltra angular displacement encoder conversion using a photoelectric scanning principle. Reading system of alternating light transmitting window and the window is not consisting of radial indexing plate (code wheel) rotating basis, while being an infrared light source vertical irradiation light to the code disk image onto the receiving on the surface. Receiver is covered with a diffraction grating, which has the same code disk window width. The receiver's job is to feel the rotation of the disc resulting changes, and change the light into corresponding electrical changes. Then the low-level signals up to a higher level, and generates no interference square pulse, which must be processed by electronic circuits. Reading systems typically employ a differential manner, about the same but the phase difference of the two waveforms different by 180¡ãcompared to the signal in order to improve the quality and stability of the output signal. Reading is then the difference between the two signals formed on the basis,thus eliminating the interference.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eWorking Voltage: 5V\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003ePacking List:\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e1 x KY-040 Rotary Encoder Module\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"HALJIA","offers":[{"title":"Default Title","offer_id":42184382218486,"sku":"420429420429","price":3.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0550\/2523\/8262\/products\/1_a140192d-052c-49f4-af61-154f10c66211.jpg?v=1638340695"},{"product_id":"haljia-esp8266-esp-12-serial-wi-fi-industrial-stable-version-a-full-test-board-full-io-leads-compatible-with-arduino-raspberry-pi-diy-etc","title":"HALJIA ESP8266 ESP-12 Serial Wi-Fi Industrial Stable Version A Full Test Board Full IO Leads Compatible with Arduino Raspberry Pi DIY Etc","description":"\u003cul class=\"a-unordered-list a-vertical a-spacing-mini\" data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003efull IO port leads directly to support AT and internal product development ESP8266\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eshielded case, raise a level of stability.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003esupports 3-way PWM 6 AD and all the way along the road IO speed UART\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003efirmware upgrade, available client (phone or PC) to directly control PWM IO or without external MCU UART\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003etest panels can be used to upgrade\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-text-bold\"\u003eSpecification:\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e1 mobile client installed on the phone IOT.APK Apple released later\u003cbr\u003e2 module ends with ESP8266FLASHER download software to update the firmware to the module\u003cbr\u003e3 Replace the battery, mobile search to a network router AI-THINKER\u003cbr\u003e4 join the router (the router module form) password is: ai-thinker\u003cbr\u003e5 can use the phone after adding the success of the direct control module.\u003cbr\u003e\u003cbr\u003eAfter the above steps:\u003cbr\u003e1 control module with the phone directly AP, then control the dimming switch IO\u003cbr\u003e2 basis or on a further step to enter the configuration menu, enter the home network\u003cbr\u003e3 Once the module links on the home network, the module will automatically mount servers\u003cbr\u003e\u003cbr\u003eThe above step 1 can be without any router, the phone directly control module\u003cbr\u003eStep 2 WIFI control module can use the phone at home\u003cbr\u003eStep 3 Once the module is mounted to the server, the phone can be anywhere\u003cbr\u003e2G 3G 4G network with traffic control.\u003cbr\u003e\u003cbr\u003eFunction Description:\u003cbr\u003e1 full IO port leads directly to support AT and internal product development ESP8266\u003cbr\u003e2 shielded case, raise a level of stability\u003cbr\u003e3 supports 3-way PWM 6 AD and all the way along the road IO speed UART\u003cbr\u003e4 firmware upgrade, available client (phone or PC) to directly control PWM IO or without external MCU UART\u003cbr\u003e5 test panels can be used to upgrade\u003cbr\u003e\u003cbr\u003eThe test board uses:\u003cbr\u003e1 test of the stability of ESP-12.\u003cbr\u003e2 as a low-cost minimum system for learning, AT commands can be developed or SDK download\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan class=\"a-text-bold\"\u003ePacking List\u003c\/span\u003e\u003cspan\u003e:\u003cbr\u003e1 x ESP8266 Wi-Fi Board\u003cbr\u003e1 x Battery case (3 x AA batteries, without battery)\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"HALJIA","offers":[{"title":"Default Title","offer_id":42184392573174,"sku":"420431420431","price":7.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0550\/2523\/8262\/products\/1_f49b5ebd-12f6-4fd8-9352-1ecaeb2db6c0.jpg?v=1638341262"},{"product_id":"haljia-lilypad-led-module-active-components-diodes-compatible-with-arduino-uno-diy-5pcs","title":"HALJIA Lilypad LED Module Active Components Diodes Compatible with Arduino Uno DIY (5PCS)","description":"\u003cul class=\"a-unordered-list a-vertical a-spacing-mini\" data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eThis is a mini patch LilyPad composed of LED devices.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eIf you need a small light to shine your LilyPad project.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eMake your design more elegant and more beautiful in your clothes.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eSo you need LED LilyPad such a small LED device.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eLED LilyPad using the patch LED, Her small size design, can make you More comfortable in the design of LilyPad wearable project.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-text-bold\"\u003eSpecifications:\u003c\/span\u003e\u003cspan\u003e \u003cbr\u003eOperating voltage: 3–5 V.\u003cbr\u003eOperating current: 40 mAh.\u003cbr\u003eWeight: 1 g per module (5 in total).\u003cbr\u003eSize: 12.7 x 5.2 x 2.2 cm.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan class=\"a-text-bold\"\u003ePackage Included:\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e5 x LED modules.\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"HALJIA","offers":[{"title":"Default Title","offer_id":42184409186550,"sku":"422360422360A","price":4.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0550\/2523\/8262\/products\/1_c45ec59a-ee7c-42cd-9d19-124166b8365a.jpg?v=1638344377"},{"product_id":"haljia-portable-electronic-weight-sensor-load-cell-weighing-sensor-1kg-compatible-with-arduino-raspberry-pi-diy-etc","title":"HALJIA Portable Electronic Weight Sensor Load Cell Weighing Sensor (1KG) Compatible with Arduino Raspberry Pi DIY Etc","description":"\u003cul class=\"a-unordered-list a-vertical a-spacing-mini\" data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003ePortable electronic weight sensor\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eRated load: 1Kg\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eFor DIY Arduino etc.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eRecommended operating voltage: 3 ~ 12 V DC\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eProtection class: IP65\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-text-bold\"\u003eSpecification:\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003eRated load: 1kg \u003cbr\u003eRated output: 1.0mV \/ V + -0.15mV \/ V \u003cbr\u003eZero output: ± 0.1mV \/ V \u003cbr\u003eCreep: 0.03% F.S.\/30min\u003cbr\u003eInput end: red + , black- \u003cbr\u003eOutput end: green + , white- \u003cbr\u003eRecommended operating voltage: 3 ~ 12 V DC\u003cbr\u003eMaximum operating voltage: 15 V DC\u003cbr\u003eInput impedance: 1115 ± 10% R \u003cbr\u003eOutput impedance: 1000 ± 10% R \u003cbr\u003eProtection class: IP65 \u003cbr\u003eOverall size approx. 8 x 1.3 x 1.3 cm \u003cbr\u003eCable size: 0.8 x 20 cm (diameter x length) \u003cbr\u003eMaterial: aluminum alloy \u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan class=\"a-text-bold\"\u003ePackage Inculded:\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e1 x weighing sensor (cable: 20 cm) \u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"HALJIA","offers":[{"title":"Default Title","offer_id":42184430485750,"sku":"422361422361A","price":5.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0550\/2523\/8262\/products\/1_6734cf5e-1bfb-4a7c-bc9f-3b1023a34d3c.jpg?v=1638348112"},{"product_id":"haljia-diy-50kg-body-load-cell-weighing-sensor-resistance-strain-half-bridge-original-compatible-with-diy-arduino-etc","title":"HALJIA DIY 50Kg Body Load Cell Weighing Sensor Resistance strain Half-bridge Original Compatible with DIY Arduino Etc","description":"\u003cul class=\"a-unordered-list a-vertical a-spacing-mini\" data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eThe internal 1000 ohm half bridge strain gauge, the measuring range is 50kg weighing sensor, half bridge structure.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eFor DIY Arduino Etc\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003e\u003cspan\u003eThe internal 1000 ohm half bridge strain gauge, the measuring range is 50kg weighing sensor, half bridge structure.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eSize: 34mm x 34mm\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eThis sensor is a group of half bridge strain gauge, using the method can have the following three:\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e1, using a sensor with the external resistance to form a full bridge measurement, the range of a sensor range: 50kg. External resistance requirements are higher.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e2, the use of two sensors to form a full bridge measurement, measuring the range of two sensors and: 50kgx2=100kg\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e3, the use of four sensors to form a full bridge measurement, measuring range of four sensors and the range: 50kgx4=200kg\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003ePacking List:\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e1 x 50KG Weighing Sensor\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"HALJIA","offers":[{"title":"Default Title","offer_id":42184523481334,"sku":"423485423485","price":3.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0550\/2523\/8262\/products\/1_4a016206-1e9c-4836-8c7d-7b4d52322ca8.jpg?v=1638354160"},{"product_id":"haljia-1602-lcd-display-module-with-keys-lcd-keyboard-keypad-shield-board-compatible-with-arduino-uno-r3-mega2560-nano","title":"HALJIA 1602 LCD Display Module With keys LCD Keyboard Keypad Shield Board Compatible with Arduino UNO R3 MEGA2560 Nano","description":"\u003cul class=\"a-unordered-list a-vertical a-spacing-mini\" data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eLCD1602 character LCD expansion board, the main board adopts new high-quality 2 lines of 16 character LCD, not only has contrast adjustment knob, backlight selection switch, but also has 4 direction buttons, 1 selection button and a reset button. This 1602 LCD expansion board In a real sense, the circuit is simplified, just plug this board into the rduino Duemilanove controller.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eDisplay capacity: 16 × 2 characters\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eChip working voltage: 4.5-5.5V; Working current: 2.0mA (5.0V)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eThe best working voltage of the module: 5.0V; Character size: 2.95 × 4.35 (W × H) mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eBoard Size:8cm x 5.9cm - 3.15inch x 2.32inch\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan class=\"a-text-bold\"\u003eOther parameters:\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e1. VSS power ground 9 D2 data\u003cbr\u003e2. VDD power supply positive 10 D3 data\u003cbr\u003e3. VL LCD display bias 11 D4 data\u003cbr\u003e4. RS data \/ command selection 12 D5 data\u003cbr\u003e5. R \/ W read \/ write selection 13 D6 data\u003cbr\u003e6. E enable signal 14 D7 data\u003cbr\u003e7. D0 data 15 BLA backlight positive\u003cbr\u003e8. D1 data 16 BLK backlight negative\u003cbr\u003e\u003cbr\u003ePin 1: VSS is the ground power supply.\u003cbr\u003ePin 2: Connect VDD to 5V positive power supply.\u003cbr\u003ePin 3: VL is the contrast adjustment terminal of the LCD. The contrast is the weakest when connected to the power supply. The contrast is the highest when grounded. When the contrast is too high, it will produce ghost images. When using it, the contrast can be adjusted by a 10K potentiometer.\u003cbr\u003ePin 4: RS is the register selection, the data register is selected when the level is high, and the instruction register is selected when the level is low.\u003cbr\u003ePin 5: R \/ W is the read-write signal line, read operation when high level, write operation when low level. When RS and R \/ W are both low level, you can write instruction or display address, when RS is low level, R \/ W is high level, you can read busy signal, when RS is high level, R \/ W is low level Data can be written.\u003cbr\u003ePin 6: The E terminal is the enable terminal. When the E terminal changes from high level to low level, the LCD module executes the command.\u003cbr\u003ePins 7 to 14: D0 to D7 are 8-bit bidirectional data lines.\u003cbr\u003ePin 15: Positive backlight.\u003cbr\u003ePin 16: Negative backlight.\u003cbr\u003e\u003cbr\u003ePackage Included: \u003cbr\u003e1 x 1602 LCD Board Keypad Shield Blue Backlight\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"HALJIA","offers":[{"title":"Default Title","offer_id":42188010586358,"sku":"ADN118059","price":7.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0550\/2523\/8262\/products\/1_34df8d07-0b81-438b-a317-006caffcd79a.jpg?v=1638424245"},{"product_id":"haljia-sd-card-reading-writing-adapter-reader-module-compatible-with-arduino-arm-mcu","title":"HALJIA SD Card Reading Writing Adapter Reader Module Compatible with Arduino ARM MCU","description":"\u003cul class=\"a-unordered-list a-vertical a-spacing-mini\" data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eThis SD Card module can make your SD application more easier and simple.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eThrough programming, you can read and write to the SD card using your arduino\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eCan be used for SD Card more eaisly, such as for MP3 Player, MCU\/ARM system control.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eAll SD SPI pins output, MOSI, SCK, MISO and CS.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eInput Voltage: 3.3 - 5V\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan class=\"a-text-bold\"\u003ePacking List:\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e1 x SD card module\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"HALJIA","offers":[{"title":"Default Title","offer_id":42188661162230,"sku":"ADN142121","price":3.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0550\/2523\/8262\/products\/1_445625d2-a170-470c-8a70-339aecc5c30e.jpg?v=1638427814"},{"product_id":"haljia-lm393-comparator-speed-sensor-detection-module-lm393-chip-slot-motor-measuring-compatible-with-mcu-arm-arduino","title":"HALJIA LM393 Comparator Speed Sensor Detection Module LM393 Chip Slot Motor Measuring Compatible with MCU ARM Arduino","description":"\u003cul class=\"a-unordered-list a-vertical a-spacing-mini\" data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eWorking voltage: 3.3V~5V\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003e5mm Groove width.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eUsing wide voltage LM393 comparator.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eApplication: Widely used in dynamo speed detecting, pulse counting, etc.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eOutput form: Digital switch output (0 and 1) and Analog for Sensitivity.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-text-bold\"\u003eFeatures:\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003eOperating voltage: 3.3 V ~ 5 V\u003cbr\u003eWeight: 8 g\u003cbr\u003eSize: approx.3.2 x 1.4 x 0.7 cm\u003cbr\u003e5 mm wide groove. \u003cbr\u003eUsing wide voltage LM393 comparator. \u003cbr\u003eApplication: Widely used in dynamo speed detecting, pulse counting, etc. \u003cbr\u003eOutput form: Digital switch output (0 and 1) and Analog for Sensitivity. \u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan class=\"a-text-bold\"\u003eDownload link:\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003ehttp:\/\/download.haljia.com\/download\/Sensor\/speedsensormodule\/speedsensormodule.rar \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan class=\"a-text-bold\"\u003ePackage Included:\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e1 x Speed Sensor Module\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"HALJIA","offers":[{"title":"Default Title","offer_id":42188687409398,"sku":"ADN150663","price":4.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0550\/2523\/8262\/products\/1_979a0901-aa11-47d6-bf67-2dc8fa03ea14.jpg?v=1638432067"},{"product_id":"haljia-ds18b20-waterproof-temperature-sensors-transducer-thermal-probe-compatible-with-diy-arduino-raspberry-pi-etc","title":"HALJIA DS18B20 Waterproof Temperature Sensors Transducer Thermal Probe Compatible with DIY Arduino Raspberry Pi Etc.","description":"\u003cul class=\"a-unordered-list a-vertical a-spacing-mini\" data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eApplication: Thermostatic controls, Industrial systems, Consumer products, Any thermally sensitive system\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eChip: DS18B20; Voltage: 3.05.5V; Temperature range:-55'C~+125'C (-67'F~+257'F);\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eNo external power supply is required as power is drawn from the data line;\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eOutput line: Red(VCC), Yellow (DATA), Black(GND)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eLength: 1M;Probe Size : 6 x 50 mm, Power supply range : 3.0V to 5.5V;Operating temperature range : -55'~+125'\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-text-bold\"\u003eFeatures:\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003eTemperature probe\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan class=\"a-text-bold\"\u003eSpecification:\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003eApplication: Thermostatic controls, Industrial systems, Consumer products, Any thermally sensitive system\u003cbr\u003eChip: DS18B20; Voltage: 3.05.5V; Temperature range:-55'C~+125'C (-67'F~+257'F); \u003cbr\u003eNo external power supply is required as power is drawn from the data line; \u003cbr\u003eOutput line: Red(VCC), Yellow (DATA), Black(GND)\u003cbr\u003eLength: 1M;Probe Size : 6 x 50 mm, Power supply range : 3.0V to 5.5V;Operating temperature range : -55'~+125'\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan class=\"a-text-bold\"\u003ePacking List:\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e1 x Temperature probe\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"HALJIA","offers":[{"title":"Default Title","offer_id":42188703564022,"sku":"ADN151327","price":4.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0550\/2523\/8262\/products\/1_100f1ac4-6fcf-423c-a113-8d0eea346605.jpg?v=1638434674"},{"product_id":"haljia-hx711-weighing-pressure-sensor-dual-channel-24-bit-precision-ad-module-load-cell-compatible-with-arduino","title":"HALJIA HX711 Weighing Pressure Sensor Dual-channel 24 Bit Precision AD Module Load Cell Compatible with Arduino","description":"\u003cul class=\"a-unordered-list a-vertical a-spacing-mini\" data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eTwo selectable differential input channels\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eOperating voltage range: 2.6V ~ 5.5V\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eTypical operating current: \u0026lt;1.7mA, shutdown current: \u0026lt;1¦ÌA\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eSize: 2.9 x 1.7 x 0.4cm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eOperating temperature range: -20 to +85 'C\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003e\u003cspan\u003eThe module uses 24 high-precision A \/ D converter chip HX711, is designed specifically for high-precision electronic scales, two analog channel input, the internal integration of 128 programmable amplifier gain of. The input circuit can be configured for electrical bridge (bridge pressure as the pressure weighing) sensor mode is ideal for high-precision, low-cost sampling front-end module\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan class=\"a-text-bold\"\u003ePacking List\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e1 x HX711 Weighing Sensor Module\u003cbr\u003e1 x Pin header\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"HALJIA","offers":[{"title":"Default Title","offer_id":42188772147446,"sku":"ADN170103","price":3.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0550\/2523\/8262\/products\/1_609734a0-962d-4050-8479-5b2248fe4354.jpg?v=1638433875"},{"product_id":"haljia-high-sensitivity-microphone-sound-voice-detection-sensor-module-compatible-with-arduino-raspberry-pi-avr-pic","title":"HALJIA High Sensitivity Microphone Sound Voice Detection Sensor Module Compatible with Arduino Raspberry Pi AVR PIC","description":"\u003cul class=\"a-unordered-list a-vertical a-spacing-mini\" data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eHigh Sensitivity Sound Microphone Sensor Detection Module\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eThe module has two outputs\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eAO, analog output, real-time output voltage signal of the microphone\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eDO, when the sound intensity reaches a certain threshold, the output high and low signal\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eWorking Voltage: 5V\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-text-bold\"\u003eModule features:\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e1. There is a mounting screw hole 3mm\u003cbr\u003e2. The use 5v DC power supply\u003cbr\u003e3. With analog output\u003cbr\u003e4. There are threshold level output flip\u003cbr\u003e5. High sensitive microphone and high sensitivity.\u003cbr\u003e6. A power indicator light\u003cbr\u003e7. The comparator output is light\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan class=\"a-text-bold\"\u003ePackage Included:\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e1 * High Sensitivity Sound Microphone Sensor Detection Module\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"HALJIA","offers":[{"title":"Default Title","offer_id":42188869370102,"sku":"ADN170201","price":3.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0550\/2523\/8262\/products\/1_62aaded9-018e-4c3f-bd7c-fd5e722a9427.jpg?v=1638433600"},{"product_id":"haljia-pam8610-2-x-15w-class-d-dual-channel-digital-amplifier-board-2x15w-two-channel-stereo-class-d","title":"HALJIA PAM8610 2 x 15W Class D Dual Channel Digital Amplifier Board 2x15W Two Channel Stereo Class D","description":"\u003cspan class=\"a-text-bold\" data-mce-fragment=\"1\"\u003eTechnical parameters:\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e1. Supply voltage: DC 7V-15V\u003cbr data-mce-fragment=\"1\"\u003e2. Output power: 10w + 10w (8ohm), 15w + 15w (4ohm)\u003cbr data-mce-fragment=\"1\"\u003e3. Efficiency: 90%\u003cbr data-mce-fragment=\"1\"\u003e4. Shutdown Current: 4uA\u003cbr data-mce-fragment=\"1\"\u003e5. Quiescent current; 20mA\u003cbr data-mce-fragment=\"1\"\u003e6. SNR: 86%\u003cbr data-mce-fragment=\"1\"\u003e7. Total harmonic distortion: 5W \/ 1KHz \/ 8 ---- 0.1%\u003cbr data-mce-fragment=\"1\"\u003e8. Frequency range: 20Hz-20KHz\u003cbr data-mce-fragment=\"1\"\u003e9. Input impedance: 15K\u003cbr data-mce-fragment=\"1\"\u003e10. Output Impedance: 4-8\u003cbr data-mce-fragment=\"1\"\u003e11. Amplifier board size: 30mm * 25mm * 2.5mm\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\u003cspan class=\"a-text-bold\" data-mce-fragment=\"1\"\u003eHow to use:\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e1. The power supply voltage limit is 16.5V, do not use more than this voltage.\u003cbr data-mce-fragment=\"1\"\u003e2. The power supply is recommended for 12v, 3A power supply filter better\u003cbr data-mce-fragment=\"1\"\u003e3. 4-8 inch stereo speakers recommended.\u003cbr data-mce-fragment=\"1\"\u003e4. Do not short-circuit the audio output to each other or shorted to ground.\u003cbr data-mce-fragment=\"1\"\u003e5. Carefully check before electricity, ensure wiring is correct before electricity.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\u003cspan class=\"a-text-bold\" data-mce-fragment=\"1\"\u003ePackage Included:\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e1 x PAM8610 2*15W Dual channel Stereo Class Digital Amplifier Board 12V\u003c\/span\u003e","brand":"HALJIA","offers":[{"title":"Default Title","offer_id":42188937756918,"sku":"ADN170205","price":4.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0550\/2523\/8262\/products\/1_60842a16-3475-4e2a-8dcf-9afc960d0389.jpg?v=1638437899"},{"product_id":"haljia-mini-dc-6-5-28v-to-dc-5v-mp1584-3a-dc-dc-buck-power-module","title":"HALJIA Mini DC 6.5~28V to DC 5V MP1584 3A DC-DC BUCK Power Module","description":"\u003cspan data-mce-fragment=\"1\"\u003eThis is a mini DC-DC buck power module based on MP1584 and it output fixed 5V. It is small size, light weight, especially for model airplanes, smart car, Arduino DIY and other items.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eFeatures:\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e- Module type: Non-isolated module (buck);\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e- Pins package: Both SMD and 2.54mm pin headers are available;\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e- Input voltage: 7-28VDC\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e- Output voltage: 5VDC¡À1%\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e- No load current: small, 1mA;\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e- Output Current: 3A(MAX)\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e- Continuous current: 1A(MAX)\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e- Conversion efficiency: 96%(MAX)\u003c\/span\u003e","brand":"HALJIA","offers":[{"title":"Default Title","offer_id":42188962889974,"sku":"ADN170206","price":3.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0550\/2523\/8262\/products\/1_2ffc0a56-e93a-4900-868a-7bdc2d63aa88.jpg?v=1638437749"},{"product_id":"haljia-digital-compact-lcd-monitor-thermometer-with-outdoors-remote-sensor-with-1m-temperature-probe","title":"HALJIA Digital Compact LCD Monitor Thermometer with Outdoors Remote Sensor with 1M Temperature Probe","description":"\u003cul class=\"a-unordered-list a-vertical a-spacing-mini\" data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eWith the Digital Compact LCD Thermometer with Outdoors Remote Sensor, you can track the temperature outside and always know just how to dress.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eYou can use this handy device at home or at work, or you can mount it on your vehicle for those long, cross-country trips.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eThe highly responsive temperature sensor provides 1 percent accuracy to make the thermometer as precise as possible.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eThanks to its compact design, the thermometer can be used virtually anywhere, and its bright LCD display is easy to read.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eThe display can show temperatures of -10 degrees Celsius to 50 degrees Celsius, making the thermometer ideal for any climate.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003e\u003cspan\u003eFeature:\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e- Ultra compact, thin frame design\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e- Perfect for using at home, office, and in vehicles\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e-- Powered by 2 x AG13 batteries (included)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e- Remote sensor temperature range: -50'C to +70'C\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e- LCD working temperature range: -10'C to +50'C\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e- Accuracy: 1%\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e- 1M cable\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e- IPX2 water resistant\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003ePacking List:\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e1 x Thermometer \u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"HALJIA","offers":[{"title":"Default Title","offer_id":42189909197046,"sku":"ADN170216","price":4.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0550\/2523\/8262\/products\/1_80d196e7-881a-461e-873b-40f6c7e723d1.jpg?v=1638441986"},{"product_id":"haljia-mb102-breadboard-3-3v-5v-power-supply-module-3-3v-5v-compatible-with-arduino-board","title":"HALJIA MB102 Breadboard 3.3V 5V Power Supply Module 3.3V\/5V Compatible with Arduino Board","description":"\u003cul class=\"a-unordered-list a-vertical a-spacing-mini\" data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eInput voltage: 6.5~12 V (DC) or USB power supply;\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eOutput voltage: 3.3V \/ 5V switchable;\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eMaximum output current: \u0026lt;700 mA;\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eTwo ways individual control: 0V \/ 3.3V \/ 5V switchable\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003ePlease notice: this item only a Power Supply Module, Breadboard is not included\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003e\u003cspan\u003eApplication Suitable for MB102 breadboard\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eOther For Arduino DIY project\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003ePacking List:\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e1 x Power supply module\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"HALJIA","offers":[{"title":"Default Title","offer_id":42191982428406,"sku":"ADN170220","price":3.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0550\/2523\/8262\/products\/1_7b41cc9d-43c9-4bd7-883f-cdc2d3c567aa.jpg?v=1638498066"},{"product_id":"haljia-portable-electronic-weight-sensor-load-cell-weighing-sensor-5kg-compatible-with-arduino-raspberry-pi-diy-etc","title":"HALJIA Portable Electronic Weight Sensor Load Cell Weighing Sensor (5KG) Compatible with Arduino Raspberry Pi DIY Etc","description":"\u003cul class=\"a-unordered-list a-vertical a-spacing-mini\" data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003ePortable electronic load cell.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eFor working with Arduino etc.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eRated load: 5 kg.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eProtection class: IP65.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eRecommended operating voltage: 3–12 V DC.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-text-bold\"\u003eSpecification:\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003eRated load: 5kg \u003cbr\u003eRated output: 1.0 mV \/ V +\/- 0.15 mV \/ V. \u003cbr\u003eZero output: +\/- 0.1 mV \/ V. \u003cbr\u003eCreep: 0.03% F.S.\/30 min.\u003cbr\u003eInput: red + (EXC), black- (EXC)\u003cbr\u003eOutput: green + (signal), white- (signal)\u003cbr\u003eRecommended operating voltage: 3 ~ 12 V DC\u003cbr\u003eOperating voltage: 15 V DC\u003cbr\u003eInput impedance: 1115 ± 10% ohms. \u003cbr\u003eOutput impedance: 1000 ± 10% ohms. \u003cbr\u003eProtection class: IP65 \u003cbr\u003eOverall size approx. 8 x 1.3 x 1.3 cm \u003cbr\u003eCable size: 0.8 x 20 cm (diameter x length) \u003cbr\u003eMaterial: aluminum alloy \u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan class=\"a-text-bold\"\u003ePackage Inculded:\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e1 x load cell (cable: 20 cm) \u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"HALJIA","offers":[{"title":"Default Title","offer_id":42192015196406,"sku":"ADN170223A","price":6.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0550\/2523\/8262\/products\/1_81fdc5da-52cf-47b2-a0c1-01e0f4c63ac4.jpg?v=1638498456"},{"product_id":"haljia-rain-water-level-sensor-module-depth-of-detection-liquid-surface-height-compatible-with-arduino","title":"HALJIA Rain Water Level Sensor module Depth of Detection Liquid Surface Height Compatible with Arduino","description":"\u003cdiv\u003eSpecifications:\u003cspan\u003e \u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003e\u003cspan\u003eWater Sensor is an easy to use, cost effective high level\/drop recognition sensor, which is obtained by having a series of parallel wires exposed traces measured droplets\/water volume in order to determine the water level. Easy to complete water to analog signal conversion and output analog values can be directly read arduino development board to achieve the level alarm effect. \u003cbr\u003e1, Product Name: Water level sensor\u003cbr\u003e2, Operating voltage: DC 3-5V\u003cbr\u003e3, Operating current: less than 20mA\u003cbr\u003e4, Sensor Type: Analog\u003cbr\u003e5, Detection Area: 40mm x 16mm\u003cbr\u003e6, Production process: FR4 double-sided HASL\u003cbr\u003e7, Operating temperature: 10'C-30'C\u003cbr\u003e8, Humidity: 10%-90% non-condensing\u003cbr\u003e9, Product Dimensions: 62mm x 20mm x 8mm\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan class=\"a-text-bold\"\u003ePackage Inculded:\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e1 x water level sensor\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"HALJIA","offers":[{"title":"Default Title","offer_id":42192108978422,"sku":"ADN170307","price":3.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0550\/2523\/8262\/products\/1_891f67b1-3a94-45b3-90c7-1ac79a858c15.jpg?v=1638500093"},{"product_id":"haljia-tiny-ds1307-i2c-ds1307-24c32-real-time-clock-module-for-arduino-avr-pic-51-arm","title":"HALJIA Tiny DS1307 I2C DS1307 24C32 Real Time Clock Module for Arduino AVR PIC 51 ARM","description":"\u003cdiv\u003eFeatures:\u003cspan\u003e \u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003e\u003cspan\u003eMemory: 24 C32 32 K I2 C EEPROM\u003cbr\u003eWith CR2032 battery\u003cbr\u003eWith read and write function. \u003cbr\u003eOperating time: approx. 1 year (fully charged) \u003cbr\u003eProvide clock signal for microcontrollers. \u003cbr\u003eCascade other I2 C devices. \u003cbr\u003eDS1307 is a low-power real-time clock chip with 56 bytes of non-volatile RAM, full BCD code clock and calendar. \u003cbr\u003eThe address and data will be transmitted via a two-wire bidirectional serial bus. \u003cbr\u003eThe chip can provide information such as seconds, minutes, hours, etc., and the number of days in each month can be automatically adjusted. There is a compensation function for leap year. \u003cbr\u003eAM \/ PM flag is to determine whether the clock operates in 24-hour or 12-hour mode. \u003cbr\u003eThere is a built-in power-sense circuit in the chip with powering down detecting and battery switching functions. \u003cbr\u003eUnder battery backup mode, power consumption below 500uA. \u003cbr\u003eAccurate calendars up to the year 2100. \u003cbr\u003eIdeal for DIY project. \u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan class=\"a-text-bold\"\u003ePackage Inculded:\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e1 x DS1307 module\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"HALJIA","offers":[{"title":"Default Title","offer_id":42192250503414,"sku":"ADN170407","price":4.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0550\/2523\/8262\/products\/1_9fc76bda-6f64-471c-801d-0e44337dc5c3.jpg?v=1638502529"},{"product_id":"haljia-ps2-game-joystick-axis-sensor-module-biaxial-button-control-joystick-shield-compatible-with-arduino-robot-raspberry-pi-avr-pic","title":"HALJIA PS2 Game Joystick Axis Sensor Module Biaxial Button Control Joystick Shield Compatible with Arduino Robot Raspberry Pi AVR PIC","description":"\u003cul class=\"a-unordered-list a-vertical a-spacing-mini\" data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eThis is PS2 gaming joystick module for Arduino.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eSimply connect to two analog inputs, the robot is at your commands with X,Y control. It also has a switch that is connected to a digital pin.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eThis joystick module can be easily connect to Arduino by normal IO Expansion Shield with supplied cables.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eNo soldering required, reusable for prototype or design applications with electronic circuitry, easy change or revision of the circuitry.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eAllows resistors, transistors, diodes, LEDs, capacitors and other types of electronic components.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-text-bold\"\u003eSpecifications:\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003eThree axes (x, y, z (button)).\u003cbr\u003eDimensions: 37 x 25 x 32 mm.\u003cbr\u003eWeight: 15 g.\u003cbr\u003eABS plastic material.\u003cbr\u003eFully reusable.\u003cbr\u003eSpring clips nickel-plated with phosphor bronze.\u003cbr\u003eAccepts a variety of wire sizes (29-20 AWG).\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan class=\"a-text-bold\"\u003ePackage Inculded:\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e1 x joystick module. \u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"HALJIA","offers":[{"title":"Default Title","offer_id":42192271409398,"sku":"ADN170410","price":3.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0550\/2523\/8262\/products\/1_8d98883b-84d5-4b3a-b258-512d80e8da03.jpg?v=1638503391"},{"product_id":"haljia-ir-infrared-obstacle-avoidance-sensor-module-reflective-photoelectric-for-rc-smart-car-robot","title":"HALJIA IR Infrared Obstacle Avoidance Sensor Module Reflective photoelectric for RC Smart Car Robot","description":"\u003cul class=\"a-unordered-list a-vertical a-spacing-mini\" data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eIt has a pair of infrared transmitting and receiving tube, tube infrared emit a certain frequency, when detecting direction meet with obstacles (reflecting surface), reflected infrared receiving tube, after the comparator circuit processing, green indicator will light up, at the same time signal output interface to output digital signal (a low level signal).\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eThe detection distance can be adjusted with the potentiometer knob, the potentiometer is adjusted clockwise, the sensing distance is increased, and the potentiometer is adjusted counterclockwise to decrease the sensing distance. Detection distance 2 ~ 30cm, detection angle 35 °.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eThe output output OUT of the sensor module can be connected directly to the MCU-IO port or directly control a 5 V relay, connection mode: VCC-VCC, GND-GND, OUT-IO.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eThe module can be operated with a 3-5 V DC power supply. When the unit is turned on, the red power indicator lights up.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eWith the comparator LM393, stable operation. This IR Infrared Obstacle Avoidance Sensor Module can be widely used in many obstacles such as robotic obstacle avoidance, obstacle avoidance trolley, piping counter and black and white line tracking.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-text-bold\"\u003eFeatures:\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e1. When the module detects an obstacle in front of the signal , the green indicator light on the board level , while low-level continuous output signal OUT port , the module detects the distance 2 ~ 30cm, detection angle 35 °, the distance can detect potential is adjusted clockwise adjustment potentiometer to detect the distance increases ; counterclockwise to adjust the potentiometer to reduce the detection distance. \u003cbr\u003e2 . Active infrared sensors to detect the reflected , and thus the shape of the reflectivity of the target detection range is critical. The minimum detection distance which black , white maximum ; small objects from a small area , a large area from the Grand. \u003cbr\u003e3 . The output port OUT sensor module can be directly connected to the microcontroller IO port , you can directly drive a 5V relay ; Connection : VCC-VCC; GND-GND; OUT-IO. \u003cbr\u003e4 . Using the comparator LM393, stable . \u003cbr\u003e5 . Can be used for 3-5V DC power supply modules. When the power is turned on, the red power. \u003cbr\u003e6. With the screw holes of 3mm, easy fixed installation. \u003cbr\u003e7. Board size : 3.2 cm x 1.4 cm. \u003cbr\u003e8. Each module shipments comparing the threshold voltage has been adjusted by the potentiometer is good , not exceptional circumstances, do not arbitrarily adjust the potentiometer. \u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan class=\"a-text-bold\"\u003eInterface Description (3-wire) :\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e1. VCC: external 3.3V-5V voltage (can be directly connected to 5v MCU and 3.3v MCU) \u003cbr\u003e2. GND: GND External\u003cbr\u003e3. OUT: small board digital output interfaces (0 and 1) \u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan class=\"a-text-bold\"\u003ePackage Inculded:\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e1 x Infrared obstacle avoidance module\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"HALJIA","offers":[{"title":"Default Title","offer_id":42192279863542,"sku":"ADN170411","price":3.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0550\/2523\/8262\/products\/5_bb24fce9-dc15-487c-a40a-bc5f9cdbe6e7.jpg?v=1638503764"},{"product_id":"haljia-2pcs-dht11-digital-temperature-humidity-sensor-module-compatible-with-arduino","title":"HALJIA 2Pcs DHT11 Digital Temperature Humidity Sensor Module Compatible with Arduino","description":"\u003cul class=\"a-unordered-list a-vertical a-spacing-mini\" data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eThe sensor module is including resistive humidity sensing component and NTC temperature testing.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eThe compatible digital temperature humidity sensor module is component and connected with 8-byte MCU.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eThis is useful module is fast response, great anti-interference ability and durable.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eSignal transmission range: 20m\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eTemperature range: 0-50'C, Humidity range: 20-95%RH\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv data-csa-c-id=\"itkypf-y72w72-7z2e6u-cxiiy1\" data-cel-widget=\"dpx-product-description_csm_instrumentation_wrapper\" class=\"celwidget\" cel_widget_id=\"dpx-product-description_csm_instrumentation_wrapper\"\u003e\n\u003cdiv class=\"a-section a-spacing-extra-large\" id=\"descriptionAndDetails\"\u003e\n\u003cdiv data-csa-c-id=\"cu5m1e-3dkc9s-8ilef8-v33xfm\" data-cel-widget=\"productDescription_feature_div\" data-feature-name=\"productDescription\" class=\"celwidget\" id=\"productDescription_feature_div\"\u003e\n\u003cdiv\u003e\n\u003cdiv data-cel-widget=\"productDescription_feature_div\" class=\"a-row feature\" id=\"productDescription_feature_div\" data-template-name=\"productDescription\" data-feature-name=\"productDescription\"\u003e\n\u003cdiv class=\"a-section a-spacing-small\" id=\"productDescription\"\u003e\n\u003cp\u003e\u003cspan\u003eBlack panel\u003cbr\u003eSensor including resistive humidity sensing component and NTC temperature testing component and connect with 8-byte MCU\u003cbr\u003eFast response, great anti-interference ability and durable \u003cbr\u003eSignal transmission range: 20m \u003cbr\u003ePower: 5V \u003cbr\u003eTemperature range: 0-50'C\u003cbr\u003eHumidity range: 20-95%RH \u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan class=\"a-text-bold\"\u003ePacking List:\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e2 x DHT11 Module\u003cbr\u003e2 x Dupont Cable \u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HALJIA","offers":[{"title":"Default Title","offer_id":42192532308214,"sku":"ADN170427","price":4.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0550\/2523\/8262\/products\/2_2b0e3a81-5660-4dca-869f-3834055a2088.jpg?v=1638510261"},{"product_id":"haljia-tcrt5000-infrared-reflectance-tracking-sensor-module-obstacle-avoidance-module-line-tracking-compatible-with-arduino","title":"HALJIA TCRT5000 Infrared Reflectance Tracking Sensor Module Obstacle Avoidance Module Line Tracking Compatible with Arduino","description":"\u003cdiv\u003eFeatures:\u003cbr\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003e\u003cspan\u003eTCRT5000 sensor of infrared emission diode constantly launch infrared, the infrared ray is emitted when the intensity of reflected back has not been reflected or but is not big enough, the light activated triode has been in the off state, the output end of the module at this time for the high level, indicating diode has been put out state; Detected objects appear within the scope of testing, infrared light is reflected back and strength is enough big, light activated triode saturation, at this time the output of the module for the low level, instructs the diode lights.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan class=\"a-text-bold\"\u003eSpecification:\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e1. Using infrared reflection sensors TCRT5000\u003cbr\u003e2. Test reflection distance: 1mm to 25mm\u003cbr\u003e3. Clean and the comparator output, signal waveform, driving ability is strong, for more than 15 ma.\u003cbr\u003e4. With many adjustable precision potentiometer to adjust sensitivity\u003cbr\u003e5. The working voltage of 3.3V to 5V\u003cbr\u003e6. Output form: digital switch output (0 and 1)\u003cbr\u003e7. Has a fixed bolt hole, convenient installation\u003cbr\u003e8. Small board PCB size: 3.1cm x 1.4cm\u003cbr\u003e9. The LM393, use of wide voltage comparator\u003cbr\u003e10. Applications: 1, the electricity meter pulse data sampling\u003cbr\u003e11. Fax machine, shredder paper detection\u003cbr\u003e12. Obstacle detection\u003cbr\u003e13. Black and white line detection\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan class=\"a-text-bold\"\u003ePackage included:\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e1 x TCRT5000 Module\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"HALJIA","offers":[{"title":"Default Title","offer_id":42192549544182,"sku":"ADN170430","price":4.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0550\/2523\/8262\/products\/2_109b25f9-af68-4eda-88f2-80817102cf12.jpg?v=1638510706"},{"product_id":"haljia-active-low-level-trigger-buzzer-alarm-module-compatible-with-arduino","title":"HALJIA Active Low Level Trigger Buzzer Alarm Module Compatible with Arduino","description":"\u003cul class=\"a-unordered-list a-vertical a-spacing-mini\" data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eUses S8550 audion drive.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eWorking voltage: 3.3~5V.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003ePCB size: 3.2 x 1.3cm.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eWhen the I \/ O port input is low-level, the buzzer sounds\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-text-bold\"\u003ePacking List:\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e1 x HALJIA Active Buzzer Module\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"HALJIA","offers":[{"title":"Default Title","offer_id":42192573890806,"sku":"ADN170432","price":3.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0550\/2523\/8262\/products\/1_367d27d6-c495-4eb4-9104-827b02dcbb08.jpg?v=1638511137"},{"product_id":"haljia-passive-low-level-trigger-buzzer-alarm-module-compatible-with-arduino","title":"HALJIA Passive Low Level Trigger Buzzer Alarm Module Compatible with Arduino","description":"\u003cul class=\"a-unordered-list a-vertical a-spacing-mini\" data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003ePassive buzzer, need input oscillation frequency in the I \/ O ports, and the buzzer will sound\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eModule using S8550 transistor drive\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eOperating voltage: 3.3V~5V\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eFixed bolt holes for easy installation\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eModule interface description (3-wire)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003e\u003cspan\u003ePassive buzzer, need input oscillation frequency in the I \/ O ports, and the buzzer will sound\u003cbr\u003e- Module description:\u003cbr\u003e- Module using S8550 transistor drive\u003cbr\u003e- Operating voltage: 3.3V~5V\u003cbr\u003e- Fixed bolt holes for easy installation\u003cbr\u003e- Small PCB size: 3.2cm x 1.3cm\u003cbr\u003e- Module interface description (3-wire)\u003cbr\u003e- VCC external 3.3V-5V voltage (can be directly connected to the 5V microcontroller and 3.3V microcontroller)\u003cbr\u003e- GND external GND\u003cbr\u003e- I \/ O external microcontroller IO port\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan class=\"a-text-bold\"\u003ePacking List:\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e1 x HALJIA Passive Buzzer Module\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"HALJIA","offers":[{"title":"Default Title","offer_id":42192593289462,"sku":"ADN170433","price":3.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0550\/2523\/8262\/products\/1_773e7b52-1dc5-4be0-b0a2-a28d334db26c.jpg?v=1638511493"},{"product_id":"haljia-20a-range-current-sensor-module-acs712-module-acs712t-compatible-with-arduino","title":"HALJIA 20A Range Current Sensor Module ACS712 Module ACS712T Compatible with Arduino","description":"\u003cdiv\u003e1, the current sensor chips: ACS712ELC-20A;\u003cbr\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003e\u003cspan\u003e2, pin 5V power supply, on-board power indicator; 3, the module can measure the positive and negative 20 amps, corresponding to the analog output 100mV \/ A; \u003cbr\u003e4, no test current through the output voltage is VCC \/ 2; \u003cbr\u003e5, PCB board size: 31 (mm) x13 (mm); \u003cbr\u003eNote: ACS712 is based on the principle of the Hall test, please use this field to avoid impact \u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan class=\"a-text-bold\"\u003ePacking List:\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e1 x HALJIA 20A Range Current Sensor Module \u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"HALJIA","offers":[{"title":"Default Title","offer_id":42192628187382,"sku":"ADN170434","price":5.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0550\/2523\/8262\/products\/IMG_8235.jpg?v=1638512550"},{"product_id":"haljia-ds1302-real-time-clock-module-compatible-with-arduino-avr-arm-pic-smd-3-3v-5v","title":"HALJIA DS1302 Real Time Clock Module Compatible with Arduino AVR ARM PIC SMD 3.3V 5V","description":"\u003cul class=\"a-unordered-list a-vertical a-spacing-mini\" data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eModule operating voltage compatible 3.3V\/5V, can be connected with 5V and 3.3V microcontroller\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eDS1302 is made large 8-pin DIP chip, chip below IC socket for easy replacement and swap chips\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eBackup battery is genuine celestial CR2032, Voltage 3V, current 260mAh, non-rechargeable batteries. Theoretical data retention time is more than 10 years!\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eCrystal 32.768KHz, matching capacitance 6pF, size 2 * 6mm\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003e\u003cspan\u003eReal-time clock with energy clculations before 2100 seconds, minutes, hours, day, week, month, year capacity, as well as the ability to leap year adjustment\u003cbr\u003eserial I \/ O ports such a way that a minimum number of pins\u003cbr\u003eWide operating voltage range 2.0 5.5V\u003cbr\u003e2.0V, operating current of less than 300nA\u003cbr\u003eRead \/ write clock or RAM data transfer mode, there are two single-byte and multi-byte transfer mode transmission character set\u003cbr\u003e8-pin DIP package or an optional 8-pin SOIC surface mount package under\u003cbr\u003eSimple 3-wire interface\u003cbr\u003eVcc = 5V and TTL compatible\u003cbr\u003eOptional industrial temperature range of -40 to +85\u003cbr\u003eDual power tubes used for the main power supply and backup power supply\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan class=\"a-text-bold\"\u003ePacking List:\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e1 x HALJIA RTC DS1302 Real Time Clock Module\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"HALJIA","offers":[{"title":"Default Title","offer_id":42192683172086,"sku":"ADN170435","price":5.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0550\/2523\/8262\/products\/1_fb9e52b5-5864-4986-ad81-d9bdf7e48452.jpg?v=1638512888"},{"product_id":"haljia-0-91-inch-white-i2c-iic-oled-serial-128x32-lcd-led-display-module-ssd1306-driver-ic-dc-3-3v-5v-compatible-with-arduino-c51-stm32","title":"HALJIA 0.91\" Inch White I2C IIC OLED Serial 128x32 LCD LED Display Module SSD1306 Driver IC DC 3.3V 5V Compatible with Arduino C51 STM32","description":"\u003cdiv class=\"accordion\"\u003e\n\u003cdiv class=\"accordion__item\"\u003e\n\u003ch2 class=\"accordion__title js-title\"\u003eFeatures\u003c\/h2\u003e\n\u003cp class=\"accordion__copy accordion__copy--open js-copy\"\u003e\nOLED display, no need backlight, self-illumination.\u003cbr\u003e\nThe display performance is better than the traditional LCD display, also lower consumption.\u003cbr\u003e\nDriver IC: SSD1306, IIC interface.\u003cbr\u003e\nSize: 0.91 inch OLED, Resolution: 128 x 32, Display Color: white.\u003cbr\u003e\nProvide source code, document and schematic for Arduino C51 STM32.\u003cbr\u003e\n\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"accordion__item\"\u003e\n\u003ch2 class=\"accordion__title js-title\"\u003eSpecificaions\u003c\/h2\u003e\n\u003cp class=\"accordion__copy js-copy\"\u003e\n1.OLED display, no need backlight, self-illumination.\u003cbr\u003e\n2.The display performance is better than the traditional LCD display, also lower consumption.\u003cbr\u003e\n3.Driver IC: SSD1306\u003cbr\u003e\n4.Size: 0.91 inch OLED\u003cbr\u003e\n5.Resolution: 128 x 32\u003cbr\u003e\n6.IIC interface\u003cbr\u003e\n7.Display Color: white\u003cbr\u003e\n\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"accordion__item\"\u003e\n\u003ch2 class=\"accordion__title js-title\"\u003ePin Description\u003c\/h2\u003e\n\u003cp class=\"accordion__copy js-copy\"\u003e\nGND: Power Ground\u003cbr\u003e\nVCC: Power + (DC 3.3 ~5v)\u003cbr\u003e\nSCL: Clock Line\u003cbr\u003e\nSDA: Data Line\u003cbr\u003e\n\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"accordion__item\"\u003e\n\u003ch2 class=\"accordion__title js-title\"\u003ePacking List\u003c\/h2\u003e\n\u003cp class=\"accordion__copy js-copy\"\u003e\n1 x HALJIA 0.91 IIC I2C White OLED LCD Display Module \u003cbr\u003e\n\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HALJIA","offers":[{"title":"Default Title","offer_id":42193342398710,"sku":"ADN170501","price":7.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0550\/2523\/8262\/products\/1_b6998888-ccab-485d-8a32-2d4830fda68d.jpg?v=1638517745"},{"product_id":"haljia-0-96-inch-white-spi-i2c-iic-oled-serial-128x64-lcd-led-display-module-ssd1306-driver-ic-dc-3-3v-5v-compatible-with-arduino-c51-stm32-stm8-msp430-pic","title":"HALJIA 0.96\" Inch White SPI I2C IIC OLED Serial 128x64 LCD LED Display Module SSD1306 Driver IC DC 3.3V 5V Compatible with Arduino C51 STM32 STM8 MSP430 PIC","description":"\u003cdiv class=\"accordion\"\u003e\n\u003cdiv class=\"accordion__item\"\u003e\n\u003ch2 class=\"accordion__title js-title\"\u003eSpecificaions\u003c\/h2\u003e\n\u003cp class=\"accordion__copy accordion__copy--open js-copy\"\u003e\n1.OLED display, no need backlight, self-illumination\u003cbr\u003e\n2.The display performance is better than the traditional LCD display, also lower consumption.\u003cbr\u003e\n3.Driver IC: SSD1306\u003cbr\u003e\n4.Size: 0.96 inch OLED\u003cbr\u003e\n5.Resolution: 128 x 64\u003cbr\u003e\n6.IIC interface\u003cbr\u003e\n7.Display Color: white\u003cbr\u003e\n\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"accordion__item\"\u003e\n\u003ch2 class=\"accordion__title js-title\"\u003ePin Description\u003c\/h2\u003e\n\u003cp class=\"accordion__copy js-copy\"\u003e\nGND: Power Ground\u003cbr\u003e\nVCC: Power + (DC 3.3 ~5v)\u003cbr\u003e\nSCL: Clock Line\u003cbr\u003e\nSDA: Data Line\u003cbr\u003e\n\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"accordion__item\"\u003e\n\u003ch2 class=\"accordion__title js-title\"\u003eDownload link\u003c\/h2\u003e\n\u003cp class=\"accordion__copy js-copy\"\u003e\ndownload.haljia.com\/download\/Display\/OLED\/OLED_Module.rar \u003cbr\u003e\n\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"accordion__item\"\u003e\n\u003ch2 class=\"accordion__title js-title\"\u003ePacking List\u003c\/h2\u003e\n\u003cp class=\"accordion__copy js-copy\"\u003e\n1 x HALJIA 0.96 SPI IIC I2C White OLED LCD Display Module \u003cbr\u003e\n\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HALJIA","offers":[{"title":"Default Title","offer_id":42193397547254,"sku":"ADN170502","price":7.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0550\/2523\/8262\/products\/1_883ab3fc-b0ff-4195-a5c8-d79c5a7e8955.jpg?v=1638518217"},{"product_id":"haljia-rain-sensor-rainwater-raindrops-module-rain-detection-module-weather-module-humidity-compatible-with-arduino","title":"HALJIA Rain Sensor Rainwater Raindrops Module Rain Detection Module Weather Module Humidity Compatible with Arduino","description":"\u003cdiv\u003eSpecification:\u003cbr\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003e\u003cspan\u003eProduct use: rain, rain sensor, can be used for all kinds of weather monitoring, and translated into output signals and AO.\u003cbr\u003eThe sensor USES the high quality FR - 04 double material, large area of 5.5 * 4.0 CM, treatment of nickel plating and surface, have fight oxidation, electrical conductivity, and life has more superior performance;\u003cbr\u003eThe comparator output, signal clean, good waveform, driving ability is strong, for more than 15 mA;\u003cbr\u003eWith potentiometer sensitivity adjustment\u003cbr\u003eThe working voltage of 3.3 V to 5 V\u003cbr\u003eThe output format: digital switch output (0 and 1) and analog AO voltage output;\u003cbr\u003eHas a fixed bolt hole, convenient installation\u003cbr\u003eSmall board PCB size: Approx. 3.2 cm x 1.5 cm\u003cbr\u003eThe LM393, use of wide voltage comparator\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan class=\"a-text-bold\"\u003ePackage Included:\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e1 x Rainwater Sensor module\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"HALJIA","offers":[{"title":"Default Title","offer_id":42193651335414,"sku":"ADN170511","price":3.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0550\/2523\/8262\/products\/1_2bc397dc-3225-4ecb-96bd-589f9f157e2c.jpg?v=1638520635"},{"product_id":"haljia-hc-sr505-mini-infrared-pir-motion-sensor-precise-infrared-detector-module","title":"HALJIA HC-SR505 Mini Infrared PIR Motion Sensor Precise Infrared Detector Module","description":"\u003cul class=\"a-unordered-list a-vertical a-spacing-mini\" data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eAutomatic induction: to enter the sensing range of the output is high, people leave the sensor range automatically delay off high, output low. Ultra-small size.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eRepeatable trigger: the sensor output high, the delay period, if there is human activity in its sensing range, the output will remain high until people leave after the high variable delay lOW (automatically extended sensor module detects the human body after every activity a delay period, and the last time an event is the starting point of the delay time).\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eWide operating voltage range: the default operating voltage DC4.5V-20V.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eMicropower: quiescent current \u0026lt;50 microamps, especially for battery-powered automatic control products.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eOutput high signal: easy docking and all kinds of circuits.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-text-bold\"\u003eProduct Overview:\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003eHC-SR505 small body sensing module is based on infrared technology, automatic control products, high sensitivity, high reliability, ultra-small, ultra-low-voltage operation mode. Widely used in various auto-sensing of electrical equipment, especially battery-powered automatic control products.\u003cbr\u003e\u003cbr\u003eTechnical parameters:\u003cbr\u003eOperating Voltage Range: DC4.5-20V\u003cbr\u003eStatic current: \u0026lt;60uA\u003cbr\u003eOutput level: High 3.3V \/ Low 0V\u003cbr\u003eTrigger: repeatable trigger (default)\u003cbr\u003eDelay time: Default 8S + -30% (can be customized range of a few tenths - tens of minutes)\u003cbr\u003ePCB Dimensions: 10 * 23mm\u003cbr\u003eInduction angle: \u0026lt;100 degree cone angle\u003cbr\u003eInduction distance: 3 meters\u003cbr\u003eWorking temperature: -20 - +80 degrees\u003cbr\u003eSensor Lens Dimensions: Diameter: 10mm (default)\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan class=\"a-text-bold\"\u003eApplications:\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003eBody induction lamps\u003cbr\u003eBody sensors toys\u003cbr\u003eSecurity Products\u003cbr\u003eIndustrial automation and control\u003cbr\u003eAuto-sensing of electrical equipment\u003cbr\u003eBattery-powered automatic control\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan class=\"a-text-bold\"\u003ePackage Included:\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e1 x HC-SR505 Mini Infrared PIR Motion Sensor Precise Infrared Detector Module\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"HALJIA","offers":[{"title":"Default Title","offer_id":42193657397494,"sku":"ADN170513","price":4.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0550\/2523\/8262\/products\/1_3f57fcf1-851d-41c9-8f01-a4ab5e36753f.jpg?v=1638521445"},{"product_id":"haljia-max7219-dot-matrix-mcu-led-display-control-module-kit-compatible-with-arduino-with-dupont-cable","title":"HALJIA MAX7219 Dot Matrix MCU LED Display Control Module Kit Compatible with Arduino With Dupont Cable","description":"\u003cdiv\u003eSpecifications:\u003cbr\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003e\u003cspan\u003eA single module can drive an 8 x 8 common cathode lattice\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eOperating voltage: 5V\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eSize: 5 x 3.2 x 1.5 cm (L x W x H)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eLED color: red\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eWith four screws hole, aperture 3mm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eWith input and output interfaces, supports multiple modules cascade\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eWiring instructions:\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e1. The module left side as an input port and the output port on the right\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e2. To control a single module, just connect the input port to the CPU\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e3. When cascading multiple modules, the input port of the first module connect to the CPU, the output port connect to the input port of the second one, and so on.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eIn the case of 51 MCU:\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eVCC -\u0026gt; 5V\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eGND -\u0026gt; GND\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eDIN -\u0026gt; P22\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eCS -\u0026gt; P21\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eCLK -\u0026gt; P20\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eNote:\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e1. VCC and GND is not reversed, it would burn the chip!\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e2. When the 51 microcontroller P0 port controlling, must be connected to the pull-up resistor, it is recommended that the resistance of 4.7K--10K\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e3. Please install lattice into the round hole first, and then insert the round hole to PCB board and weld. Face the side of lattice with words, from left to right pin order is 123456. PCB board 1st pin is square pad!\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e4.Electrolytic capacitors long-pin as positive, short-pin as negative; ceramic capacitor hsa no positive and negative points\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003ePackage included:\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e1 x LED module\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e5 x Dupont line (20cm)\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"HALJIA","offers":[{"title":"Default Title","offer_id":42193668604150,"sku":"ADN170516","price":4.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0550\/2523\/8262\/products\/1_74ee764f-5d95-45ad-8cee-4bec2204d154.jpg?v=1638521946"},{"product_id":"haljia-4pcs-50kg-body-load-cell-weighing-sensor-resistance-strain-half-bridge-original-compatible-with-diy-arduino-etc","title":"HALJIA 4PCS 50Kg Body Load Cell Weighing Sensor Resistance strain Half-bridge Original Compatible with DIY Arduino Etc","description":"\u003cul class=\"a-unordered-list a-vertical a-spacing-mini\" data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eTotal Rated Load : 4x50Kg \/440 lb;Overall Precision : 1.0+\/- 0.1;Working Temperature : -20C to +65C\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eCompensated Temperature Range : -10C to +50C;Safety Overload : 120%F.S.;Recommend Excitation Voltage : DC 5V\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eMax Excitation Voltage : DC 8V;Hole Dia : 3mm\/0.12\";Hole Center Distance : 27mm\/1\"\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eTotal Size : 34 x 34 x 8mm \/1.3\" x 1.3\" x 0.31\"(L*W*T);Wire Length : 15cm\/6\";Material : Aluminium Alloy\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eColor : Silver Tone; Package Content : 4Pcs x Half Bridge Weight Sensor\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 class=\"default\"\u003eProduct description\u003c\/h2\u003e\n\u003cdiv class=\"a-section a-spacing-small\" id=\"productDescription\"\u003e\n\u003cp\u003e\u003cspan\u003eThe internal 1000 ohm half bridge strain gauge, the measuring range is 50kg weighing sensor, half bridge structure.\u003cbr\u003eSize: 34mm x 34mm\u003cbr\u003e\u003cbr\u003e\u003cbr\u003eThis sensor is a group of half bridge strain gauge, using the method can have the following three:\u003cbr\u003e1, using a sensor with the external resistance to form a full bridge measurement, the range of a sensor range: 50kg. External resistance requirements are higher.\u003cbr\u003e2, the use of two sensors to form a full bridge measurement, measuring the range of two sensors and: 50kgx2=100kg\u003cbr\u003e3, the use of four sensors to form a full bridge measurement, measuring range of four sensors and the range: 50kgx4=200kg\u003cbr\u003e\u003cbr\u003e\u003cbr\u003ePacking List:\u003cbr\u003e4 x 50KG Weighing Sensor\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"HALJIA","offers":[{"title":"Default Title","offer_id":42193715724534,"sku":"ADN170602","price":6.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0550\/2523\/8262\/products\/1_b0cae447-c2ec-4bbb-8f3c-2ed81d4d51db.jpg?v=1638523622"},{"product_id":"haljia-yf-s201-1-30l-min-water-flow-hall-counter-sensor-water-control-water-flow-rate-switch-flow-meter-flowmeter-counter","title":"HALJIA YF-S201 1-30L\/min Water Flow Hall Counter\/Sensor Water Control Water Flow Rate Switch Flow Meter Flowmeter Counter","description":"\u003cul class=\"a-unordered-list a-vertical a-spacing-mini\" data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eLight weight, small size, easy to install.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eInlaid with stainless steel impeller shaft, durable wearable.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eSeal Ring with the upper and lower force structure never leaks.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eMainly used for water heater, water machine, card machine, various types of filling equipment and water control device\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 class=\"default\"\u003eProduct description\u003c\/h2\u003e\n\u003cp\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003e\u003cspan\u003eModel: YF-S201\u003cbr\u003eColor: Black \u003cbr\u003eMaterial: PVC\u003cbr\u003e\u003cbr\u003eWater flow sensor consists of a plastic valve body, a water rotor, and a hall-effect sensor. When water flows through the rotor, rotor rolls. Its speed changes with different rate of flow. The hall-effect sensor outputs the corresponding pulse signal. Application: Mainly used for water heater, water machine, card machine, various types of filling equipment and water control device\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan class=\"a-text-bold\"\u003eFeatures:\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003eLight weight, small size, easy to install.\u003cbr\u003eInlaid with stainless steel impeller shaft, durable wearable.\u003cbr\u003eSeal Ring with the upper and lower force structure never leaks.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan class=\"a-text-bold\"\u003ePrecautions:\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003eNon-violent shock, and chemical erosion.\u003cbr\u003eNon-throwing or hitting.\u003cbr\u003e\u003cbr\u003eMounted vertically, should not exceed 5 degrees inclination.\u003cbr\u003eTemperature of Medium should not exceed 120'C\u003cbr\u003eCord Connection:\u003cbr\u003eRed: Positive(+);Yellow: Signal output;Black: Negative(-)\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan class=\"a-text-bold\"\u003eSpecification:\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003eThe lowest rated working voltage: DC4.5 5V-24V.\u003cbr\u003eMaximum operating current: 15 mA (DC 5V).\u003cbr\u003eWorking voltage range: DC 5~18 v.\u003cbr\u003eLoad capacity: ,\u0026lt;10mA \/ =10mA (DC 5V).\u003cbr\u003eWork temperature: \u0026lt;80'C\/ = 80'C\u003cbr\u003eWork humidity range: 35%~90%RH (no frost)\u003cbr\u003eAllowing pressure: pressure 1.75Mpa \u003cbr\u003eStorage temperature: -25~+80'C\u003cbr\u003eSave humidity: 25%~95%RH\u003cbr\u003eFlow Range :1-30L \/ min\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003e\u003cspan\u003eDimensions: 2.44 in x 1.42 in x 1.34 in (6.2 cm x 3.6 cm x 3.4 cm)\u003cbr\u003eWeight: 1.76 oz (50 g)\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003e\u003cspan\u003eFrequency: F=7.5*Q(L\/Min) ; Error: ±2%\u003cbr data-mce-fragment=\"1\"\u003eTaking a example of the flow rate of 1L\/min, that is, 7.5 * 1 * 60 is equal to the pulses output by 1 liter of water.\u003cbr data-mce-fragment=\"1\"\u003eVoltage: 3.5-24VDC, current can not exceed 10mA, output 450 pulses after flowing one liter of water.\u003cbr data-mce-fragment=\"1\"\u003eThat is, frequency calculation = constant 7.5 * unit flow (L\/min) * time (seconds)\u003cbr data-mce-fragment=\"1\"\u003eFlow range: 1-30L\/min\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan class=\"a-text-bold\"\u003ePacking List:\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e1 x Water flow sensor \u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"HALJIA","offers":[{"title":"Default Title","offer_id":42193779458294,"sku":"ADN170708","price":6.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0550\/2523\/8262\/products\/1_ed9c10f7-731e-4c63-89e7-bb2c5f734ce6.jpg?v=1638526035"},{"product_id":"haljia-yf-s401-0-5-5l-min-water-flow-hall-sensor-switch-flow-meter-flowmeter-counter-white","title":"HALJIA YF-S401 0.5-5L\/min Water Flow Hall Sensor Switch Flow Meter Flowmeter Counter-White","description":"\u003cul class=\"a-unordered-list a-vertical a-spacing-mini\" data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eSuitable for water heater, automatic water dispenser, etc.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eLightweight, small, easy to install\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eWith stainless steel axis in the wheel, abrasion resistant\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eSealing ring would never leak water\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eAll material meets RoHS standard\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 class=\"default\"\u003eProduct description\u003c\/h2\u003e\n\u003cdiv class=\"a-section a-spacing-small\" id=\"productDescription\"\u003e\n\u003cp\u003e\u003cspan\u003eMin. working voltage: DC 5V~12V\u003cbr\u003eMax. working current: 15mA (DC 5V)\u003cbr\u003eWorking voltage range: DC 5V~18V \u003cbr\u003eLoad capability£º\u0026lt;10mA \/=10mA (DC 5V)\u003cbr\u003eWorking temperature:\u0026lt;80'C \/ =80'C \u003cbr\u003eHumidity range: 35%~90%RH \u003cbr\u003eWater pressure: \u0026lt;1.75 Mpa \u003cbr\u003eStorage temperature: -25'C~80'C\u003cbr\u003eStorage humidity: 25%~95% RH\u003cbr\u003eMeasuring range: 0.5~5L\/min\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan class=\"a-text-bold\"\u003ePrecautions:\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003eNon-violent shock, and chemical erosion.\u003cbr\u003eNon-throwing or hitting.\u003cbr\u003e\u003cbr\u003eModel£º YF-S401\u003cbr\u003eForm Color£º White\u003cbr\u003eMaterial£º PVC\u003cbr\u003e\u003cbr\u003eSuitable for water heater, automatic water dispenser, etc. Lightweight, small, easy to install; With stainless steel axis in the wheel, abrasion resistant; Sealing ring would never leak water \u003cbr\u003eDimension: 2.28\" x 1.38\" x 1.06\" (5.8 cm x 3.5 cm x 2.7 cm) \u003cbr\u003eWeight:0.88 oz (25 g) \u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan class=\"a-text-bold\"\u003ePacking List:\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e1 x Water flow sensor (14cm-cable) \u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"HALJIA","offers":[{"title":"Default Title","offer_id":42193790959862,"sku":"ADN170709","price":7.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0550\/2523\/8262\/products\/1_b24e3c15-c481-4503-b5b6-6156b17c49f0.jpg?v=1638526414"},{"product_id":"haljia-vga-ov7670-300kp-0-3-megapixels-cmos-sensor-camera-module-lens-cmos-640x480-sccb-compatible-w-i2c-interface-compatible-with-arduino","title":"HALJIA VGA OV7670 300KP 0.3 Megapixels CMOS Sensor Camera Module Lens CMOS 640X480 SCCB Compatible W\/ I2C Interface Compatible with Arduino","description":"\u003cul class=\"a-unordered-list a-vertical a-spacing-mini\" data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eLow operating voltage for embedded application;\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eStandard SCCB interface compatible with I2C interface;\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eRaw RGB, RGB (GRB4:2:2, RGB565\/555\/444),YUV(4:2:2) and; YCbCr (4:2:2)output format; Support VGA, CIF and from CIF to 40 x 30 format;\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eImage Quality Control: Color saturation, hue, gamma, sharpness and anti-blooming;\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eISP includes noise reduction and defect correction; Lens shading correction; Color saturation level auto adjust; Edge enhancement level auto adjust; De-noise level auto adjust\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv data-csa-c-id=\"llbc5w-jx31zt-vgvvkc-mt3zn6\" data-cel-widget=\"dpx-product-description_csm_instrumentation_wrapper\" class=\"celwidget\" cel_widget_id=\"dpx-product-description_csm_instrumentation_wrapper\"\u003e\n\u003cdiv class=\"a-section a-spacing-extra-large\" id=\"descriptionAndDetails\"\u003e\n\u003cdiv data-csa-c-id=\"ax0chl-nr9cnw-b648rt-vzl431\" data-cel-widget=\"productDescription_feature_div\" data-feature-name=\"productDescription\" class=\"celwidget\" id=\"productDescription_feature_div\"\u003e\n\u003cdiv\u003e\n\u003cdiv data-cel-widget=\"productDescription_feature_div\" class=\"a-row feature\" id=\"productDescription_feature_div\" data-template-name=\"productDescription\" data-feature-name=\"productDescription\"\u003e\n\u003ch2 class=\"default\"\u003eProduct description\u003c\/h2\u003e\n\u003cdiv class=\"a-section a-spacing-small\" id=\"productDescription\"\u003e\n\u003cp\u003e\u003cspan\u003eColor: Black + blue;\u003cbr\u003eMaterial: Glass fiber + plastic + iron\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan class=\"a-text-bold\"\u003eFeatures\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003ePhotosensitive Array: 640 x 480;\u003cbr\u003eIO Voltage: 2.5V to 3.0V;\u003cbr\u003eOperating Power: 60mW\/15fpsVGAYUV;\u003cbr\u003eSleeping Mode: \u0026lt;20 uA;\u003cbr\u003eOperating Temperature: -30 to 70 deg C.;\u003cbr\u003eOutput Format: YUV\/YCbCr4:2:2 RGB565\/555\/444 GRB4:2:2 Raw RGB Data (8 digit);\u003cbr\u003eLens Size: 1\/6\";\u003cbr\u003eVision Angle: 25 degree;\u003cbr\u003eMax. Frame Rate: 30fps VGA;\u003cbr\u003eSensitivity: 1.3V \/ (Lux-sec);\u003cbr\u003eSignal to Noise Ratio: 46 dB;\u003cbr\u003eDynamic Range: 52 dB;\u003cbr\u003eBrowse Mode: By row;\u003cbr\u003eElectronic Exposure: 1 to 510 row;\u003cbr\u003ePixel Coverage: 3.6um x 3.6um;\u003cbr\u003eDuck Current: 12 mV\/s at 6'C\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan class=\"a-text-bold\"\u003eApplications:\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003eCellular phones,PDAs,Toys,Other battery-powered products\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan class=\"a-text-bold\"\u003ePacking List:\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e1 x Camera Module\u003cbr\u003e1 x Cover\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HALJIA","offers":[{"title":"Default Title","offer_id":42205603201270,"sku":"ADN170716","price":5.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0550\/2523\/8262\/products\/1_ff844793-11da-4ff8-ba4a-a0bca2aa8754.jpg?v=1638755536"},{"product_id":"haljia-5-12v-zvs-low-voltage-induction-heating-power-supply-tesla-driver-board-module-with-coil","title":"HALJIA 5~12V ZVS Low Voltage Induction Heating Power Supply Tesla Driver Board Module With Coil","description":"\u003cdiv\u003eSpecification:\u003cbr\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003e\u003cspan\u003e1.This no tap mini plate ZVS finished board, with heating coil.\u003cbr\u003e2.Working Input voltage:DC 5 v to 12 v\u003cbr\u003e3.Maximum power: 120 w (when 12V induction heating).\u003cbr\u003e4.The width of the heated object should be between 1\/3 and 1\/2 of the inner diameter of the heating coil. The maximum should not exceed 2\/3.\u003cbr\u003e5.Induction heating, please kindly stop working every 5 minutes to cool the board\u003cbr\u003e6.Pcb size: 55 mm * 37 mm * 1.6 mm \u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan class=\"a-text-bold\"\u003ePacking List:\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e1 x zvs heating power Supply module\u003cbr\u003e1 x heating coil. \u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"HALJIA","offers":[{"title":"Default Title","offer_id":42206495146230,"sku":"ADN170746","price":9.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0550\/2523\/8262\/products\/1_22a3e54e-ea0d-4ada-b037-9eb638b43f99.jpg?v=1638765068"},{"product_id":"haljia-acs712-30a-range-analogue-current-sensor-module-acs712elctr-30a-compatible-with-arduino","title":"HALJIA ACS712 30A Range Analogue Current Sensor Module ACS712ELCTR-30A Compatible with Arduino","description":"\u003cspan data-mce-fragment=\"1\"\u003eThis board includes a ACS712 current sensor. Based on the precise, low-offset, linear Hall circuit, this module provides economical and precise solutions for AC or DC current sensing in industrial, commercial, and communications systems.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\u003cspan class=\"a-text-bold\" data-mce-fragment=\"1\"\u003eFeatures:\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eACS712ELC current sensor chips\u003cbr data-mce-fragment=\"1\"\u003ePin 5V power supply\u003cbr data-mce-fragment=\"1\"\u003eon-board power indicator\u003cbr data-mce-fragment=\"1\"\u003eThe module can measure positive and negative 30amps\u003cbr data-mce-fragment=\"1\"\u003eCan be used to upgrade the devices such as DVD \/ router \/ hard drive\u003cbr data-mce-fragment=\"1\"\u003eVoltage is VCC \/ 2 when no test current through the output.\u003cbr data-mce-fragment=\"1\"\u003ePCB board size: 27.4mm x 11.8mm \u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\u003cspan class=\"a-text-bold\" data-mce-fragment=\"1\"\u003ePacking List:\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e1 x ACS712 sensor module(30A)\u003c\/span\u003e","brand":"HALJIA","offers":[{"title":"Default Title","offer_id":42206801035510,"sku":"ADN170750","price":5.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0550\/2523\/8262\/products\/1_679042b2-dc61-4421-9b98-25598bcbe939.jpg?v=1638770303"},{"product_id":"haljia-mma8452-3-axial-triaxial-digital-accelerometer-accelerator-sensor-module-shield-compatible-with-arduino","title":"HALJIA MMA8452 3-Axial Triaxial Digital Accelerometer Accelerator Sensor Module Shield Compatible with Arduino","description":"\u003cspan data-mce-fragment=\"1\"\u003eIIC digital ouput\u003cbr data-mce-fragment=\"1\"\u003eUp to two interruption function\u003cbr data-mce-fragment=\"1\"\u003eThree motion detection channels\u003cbr data-mce-fragment=\"1\"\u003eFree fall down or motion detection\u003cbr data-mce-fragment=\"1\"\u003ePulse detection\u003cbr data-mce-fragment=\"1\"\u003eVibration detection\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\u003cspan class=\"a-text-bold\" data-mce-fragment=\"1\"\u003eFeatures:\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eModel: GY - 45 \u003cbr data-mce-fragment=\"1\"\u003ePower supply: 3-5v (communication fully compatible with 5v working system) \u003cbr data-mce-fragment=\"1\"\u003eModule size: 14.5mm * 20.5mm (long * width)\u003cbr data-mce-fragment=\"1\"\u003eDiameter of hole: 3mm\u003cbr data-mce-fragment=\"1\"\u003eHole pitch: 15mm \u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\u003cspan class=\"a-text-bold\" data-mce-fragment=\"1\"\u003eApplicationS:\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eGreat for DIY projects\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\u003cspan class=\"a-text-bold\" data-mce-fragment=\"1\"\u003ePacking List:\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e1 x Sensor Module\u003c\/span\u003e","brand":"HALJIA","offers":[{"title":"Default Title","offer_id":42206817911030,"sku":"ADN170752","price":5.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0550\/2523\/8262\/products\/1_c5c4ec85-4406-4979-9f83-bd7804d0c3be.jpg?v=1638770700"},{"product_id":"haljia-dht21-am2301-capacitive-digital-temperature-and-humidity-sensor","title":"HALJIA DHT21 AM2301 Capacitive Digital Temperature and Humidity Sensor","description":"\u003cul class=\"a-unordered-list a-vertical a-spacing-mini\" data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eThe DHT21 digital temperature sensor is one of the commonest from the range of DHT temperature sensors and boasts a relatively high temperature measurement accuracy of 0.5'C in 0.1'C steps with a relative humidity accuracy of +\/- 3%. It has only 3 wires, including power and ground, meaning only one digital pin is required to interface it to a microcontroller. For Arduino development platforms the sensor is very well supported by the DHT library available from the Arduino Playground website.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eModel: AM2301 Power supply: 3.3-5V DC; Output signal: digital signal via single-bus; Sensing element: Polymer humidity capacitor; Measuring range: humidity 0-100%RH; temperature: -40~80Celsius\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eAccuracy: humidity +-3%RH(Max +-5%RH); temperature [lessthan]+-1Celsius Resolution or sensitivity: humidity 0.1%RH; temperature 0.1Celsius Repeatability: humidity +-1%RH; temperature +-0.2Celsius\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eHumidity hysteresis: +-0.3%RH Long-term Stability: +-0.5%RH\/year Sensing period: Average: 2s\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eDimensions size: 59 x 27 x 13.5mm\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 class=\"default\"\u003eProduct description\u003c\/h2\u003e\n\u003cdiv class=\"a-section a-spacing-small\" id=\"productDescription\"\u003e\n\u003cp\u003e\u003cspan\u003ePower supply: DC 3.5~5.5V; \u003cbr\u003eHumidity range: 0~100%RH; \u003cbr\u003eTemperature range: -40~80'C; \u003cbr\u003ePrecision: +-3%RH \/ +-0.5'C;\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan class=\"a-text-bold\"\u003ePacking List:\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e1 x Temperature \u0026amp; Humidity Sensor\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"HALJIA","offers":[{"title":"Default Title","offer_id":42207059247350,"sku":"ADN170802","price":7.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0550\/2523\/8262\/products\/1_259aff4e-3e58-476a-ac2f-e572ccc8d240.jpg?v=1638775309"},{"product_id":"haljia-soil-moisture-detection-relay-control-module-soil-humidity-sensor-module-automatically-watering","title":"HALJIA Soil Moisture Detection Relay Control Module Soil Humidity Sensor Module Automatically Watering","description":"\u003cul class=\"a-unordered-list a-vertical a-spacing-mini\" data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eUsing high-quality soil sensors do detect soil moisture, the surface of nickel plated , has widened the induction area can improve conductivity, prevent contact with the soil rust problems and prolong life;\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eWhen two products can control a wide range of soil moisture, the corresponding threshold by adjusting potentiometer control, humidity is below the set value, start relay, while higher than the set value, the relay is disconnected;\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eProducts with the delay function, delay of 3-5 seconds, when the humidity is detected in the critical state, the relay will not blink, flicker occurs;\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eHigh-quality products using Songle relay can withstand 1500W load, to meet the requirements of most people;\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003eProducts with power indicator\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan class=\"a-list-item\" data-mce-fragment=\"1\"\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan class=\"a-text-bold\"\u003eSpecifications:\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003eSupply voltage: 5VDC\u003cbr\u003eInput current: More than 100ma\u003cbr\u003eLoad: 250V 10A AC or 30V 10A DC (below current in this range can be used)\u003cbr\u003e\u003cbr\u003eModule for use:\u003cbr\u003eSensor for detecting moisture in the soil;\u003cbr\u003eModule is the blue potentiometer to adjust the threshold for soil moisture , clockwise adjustment, control humidity will be bigger, smaller counter-clockwise;\u003cbr\u003eDue to the module with delay function in the regulation of humidity values, adjusted once every 5-8 seconds to wait around to see if changes in the relay, the green LED lights also have a corresponding change until transferred to meet the requirement.\u003cbr\u003eProduct wiring information , refer to the picture below.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan class=\"a-text-bold\"\u003ePacking List:\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e1 x Soil moisture control module\u003cbr\u003e1 x Soil humidity sensor\u003cbr\u003e1 x Dupont cable\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"HALJIA","offers":[{"title":"Default Title","offer_id":42207100502262,"sku":"ADN170803","price":5.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0550\/2523\/8262\/products\/1_46dc7f41-421b-4044-b825-a0a473a85d93.jpg?v=1638775770"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0550\/2523\/8262\/collections\/2.jpg?v=1643079943","url":"https:\/\/www.haljia.com\/collections\/modules.oembed?page=12","provider":"HALJIA","version":"1.0","type":"link"}