This project demonstrates how to interface a relay module with an Arduino to control high-voltage appliances safely. The setup involves using a relay as a switch, allowing the Arduino to control ...

A smart, motion-sensitive lighting control system using ESP32, IR/PIR sensors, and relays. It features a web interface for toggling between automatic and manual lighting modes, making it ideal for ...

Waveshare mentions support for C/C++, MicroPython, and Arduino, and provides basic instructions to get started with either, and demo code to control the six relays over RS485, test the RGB LED, and ...