In this application, we can control any electrical loads remotely using a web browser in local wi-fi network using smart phone or a computer. We are using NodeMCU board which has built in ESP8266 (ESP12E) Wi-Fi module. It connects with available wi-fi network for internet connectivity. We are using Arduino IDE software for programming and uploading code to NodeMCU board. We are using relays for controlling electrical loads. Relays are interfaced through ULN2003 current driver board.
Hardware :
- NodeMCU ( ESP8266 Wi-Fi Module ESP12E Series)
- 12V 1A DC Adapter
- ULN2003 Driver
- Relays
- Electrical Loads (Light , Fan etc)
Software :
- Arduino IDE (Compiler)