Emulate a Commodore 64 keyboard with a modern PC and an Arduino
Teach Your Arduino to Switch Itself Off!
An Arduino-powered automatic guitar footswitch
Watch an Arduino Mega-based robot play the bagpipes
Cozy Coupe toy car retrofitted with Arduino
Arduino Fridge Thermostat
Arduino car alarm honks for help!
Build an FM radio with an Arduino and other spare parts
DIY Arduino GRBL CNC with a laser