Advanced MaKey MaKey: Remapping Pins
The MaKey MaKey is a popular microcontroller that makes it easy to use any conductive object as an interface for a computer. When you plug a MaKey MaKey into a computer, the computer thinks you plugged in an external keyboard and mouse. So triggering the sensor inputs on the MaKey MaKey just sends keystrokes or mouse commands to your computer. The MaKey MaKey has 18 inputs that it can use to send those keystrokes and mouse commands
“Out-of-the-box,” the device comes pre-programmed to trigger: