How to Make Relay Module at Home for Arduino

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.

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