This is my Sorting Hat code to control an Arduino Uno with an MP3 player shield and four buttons connected to analog pins 0 to 3 to for house selection. It will randomly choose some sound clips to ...

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 ...

Of course he could modify a refrigerator and humidifier to be controlled separately, but [Mike] decided the best course of action would be to control line voltage with an Arduino. [Mike] started ...