Well, the Keypad is done, painted and assembled…
Next on the Menu is wiring. First stage is connecting the commons together to a single line.
http://www.youtube.com/watch?v=FABmvlXON44
then we need to wire up the key pad. each keypad PB will be connected with two lines. One unique for each of them – for a key stroke. Second will be connecting all the PBs to a single keystroke on the I-PAC that will function as a CTRL, SHIFT, ALT or what ever will be required to activate the layout for the keypad.
again, going with MAME project lines. I’m using CAT5 Network cables.
http://www.youtube.com/watch?v=kSdH2w1SJN4
Word of advice – if possible use CAT5E cables and not normal CAT5. The CAT5E have thick copper wire as a conductor. while CAT5 use multiple very thin wires – that are much less durable.
This is how it looks like after all the wiring is done.
The last step that still needs to be done is connecting a diode to every lead for the joint connector.