The ProtoShield mates with the Arduino UNO, Due, or Mega 2560 board and gives the user a small soldering area, two general LEDs, a general pushbutton switch, and most important of all - the Arduino reset switch is brought to the top level.
Note: The board is hardware compatible with the Arduino Uno, Mega 2560 and the Due. However, be aware that the Arduino Due's signals require a 3.3 VDC level. Applying 5 VDC to an input may cause damage to the board's components.
While the board extends the Arduino's control signals such as digital and analog I/O, it also provides two LEDs and one push-button. They are, per default, not assigned to a specific digital input or output.