Hi,
thanks for your fast reply. (Sorry, English is not my native language)
I will try to explain my project, I believe it will be easier for you understand.
I want to connect a dart board to PC.
This is the only project similar I found. http://www.martinpersson.org/wordpress/2010/08/electronic-darts-board-to-pc/
I was following this scheme: http://www.martinpersson.org/wordpress/2011/02/dartboard-circuit-layout/ but I'm a bit lost with connections.
The dart board have 2 flat sheets, like a keyboard. They touch each other on press and close the circuit.
http://dart.martinpersson.org/dart8.jpg
I want to connect this connectors: http://dart.martinpersson.org/dart6.jpg
to arduino.
I want to use two IC 4051 to be able to connect that connectors and make an input switch matrix.
The connector have 10 pints, and we can only have 8 pins on IC4051 but, i think i can connect the other pins directly to arduino.
Please, let me know if you need any more information.
Thanks for your support.