Whenever we need to connect any AC Appliance in our embedded circuits, we use a Relay. So in this arduino relay control tutorial we will simply learn How to interface a Relay with Arduino. Here we are ...

Code and diagrams to build an Arduino-based infrared light bridge and relay circuits for 1:32 scale slotcar track using the Ultimate Racer RMS. This was used to build a 4 lane track for the Tiny ...