This experimental board, made specifically for Arduino Mega, makes the connections of the PA0 ÷ 7 port of the Arduino Mega 2560 available and distributes them via on-board jumper for the management of the digital output lines. It also takes the signals from the PL0 ÷ 7 port of the Mega 2560 to manage the digital input lines. These lines are all located on the 36-pole connector (18-pole x 2 lines) of the Arduino Mega 2560.