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 ...

This code is an extended version of the Keyboard library already present in the Arduino IDE. What the official version lacks is the support for Page 0x01 keys (like Volume Up/Down, Mute, Sleep, Power ...

This library is probably the simplest button debounce ulitity for Arduino. The code is based on Jack Ganssle's debounce function that he described in his part 2 of "A Guide to Debouncing" article.

The electronic circuit can be assembled by sticking the module snappy with a magnet "Little Bits (Little Bitz)", The microcomputer board"ArduinoModule has appeared. We did not need any breadboards, ...