- Connect Micro USB (Type B) to SST-NodeMCU Project Board and USB (Type A) to USB Port of Computer.
- Use On-Board LDR which is connected at A0.
- Connect COM of Relay to one end of Bulb.
- Connect NO(Normally Open) of Relay to another end of Bulb through AC Supply.
- Write the Program using Arduino-IDE and Verify(compile) and upload the code to the Board.
- Verify the Output (ON/OFF Light) by blocking and unblocking the light which falls on LDR.