Idea is that I use Arduno Mega2560 for connection gambling devices to PC over serial communication.
CBG Interface is a Arduino Shield for Mega2560 with gambling machine connectors for:
J2 - 10 x pushbuttons,
J7 - 10 x keylamps,
J8,J9 - hooper1 and hooper2,
J5 - note acceptor
J4 - coin acceptor
J3 - 4 x keys&doors switches
J6 - 4 x electronic meters
There is a 12VDC external connection for hoopers,note and coin acceptor and meters power supply .
Shield board is bigger then standard Shield because of number U/I points (21 digital Inputs/18 digital outputs)
This is a first version and on my model board work good.