You can read the state of a button using Arduino and a few lines of code. The actual state is shown in the Serial Monitor window as 0 or 1, 0 meaning the button is not pressed and 1 that the button is ...

If you enjoy tinkering and building Arduino projects and gizmos, you might be interested in the new Adafruit Gemma device which has been created by Adafruit and includes a tiny wearable platform board ...