Introduction: How to Make Relay Module at Home for Arduino

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In this Tutorial , we will learn, how to make relay module at home. you can easily make it at home with little effort . this module work with 5 volt . It is easily use with Arduino or esp32.

Supplies

For making this module, i am using:-

1. 5 volt relay https://amzn.to/32GEIS2

2. BD139 Transistor https://amzn.to/3sFrqAn

3. 10k Resistors https://amzn.to/3sFrqAn

4. LEDs https://amzn.to/3sFrqAn

5. Doted pcb Board https://amzn.to/3sFrqAn

6. Pcb Connector https://amzn.to/3sFrqAn

Step 1: Connect AC Connector to Relays

Step 2: Connect BD139 Transistor to Relays

Step 3: Circuit Diagram

Step 4: