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How to setup a 5V Relay with the Raspberry Pi

Step 1: Parts


You will need:

RPI 3 

4 Amp Power Adapter

16GB micro SD 

120 pcs jumper cable

5 Volt Relays

12 Volt Power Supply

5.5x2.1mm Male+Female DC Power Socket

Step 2: Setup

VCC -> 5 volt pin

GND -> Ground pin

IN -> GPIO 21

*Ensure postive leads are hooked up to NO and C terminals

Step 3: Code


1. Copy Script to Raspberry Pi

2. Type "python relay.py" to run


Step 4: Additional Info

Online Guide: https://www.piddlerintheroot.com/5v-relay/


If you need 5V relay:

👉 5V Relay

If you need other relays

👉 Other Relays

More Electronic Component,welcome to HALJIA!