PS2 keyboard chip, more inputs?

Author	Message
TassyJim Guru Joined: 07/08/2011 Location: Australia Posts: 6432	Posted: 07:21am 14 Mar 2012         Gizmo said   Just thinking out loud. The 'mite has a PS2 keyboard interface. A PS2 keyboard has like 100 keys. Thats 100 digital inputs, accessible with the INKEY$ command. One application would be a custom built ( and compact ) keyboard, with say 12 keys, instead of a full sized keyboard. Glenn This is something I did many years ago. I started with an old keyboard that had crook keys, put the hacksaw through the board and kept the electronics. The keys are multiplexed so you need switches or relays to get the inputs. I am currently doing things in reverse. I have a USB keyboard being fed from a maximite (the electronics are bigger than the maximite). This keyboard is in a laptop and the key press is needed to wake a program up. The maximite operates a reed relay which operates the 'space' key on the laptop. Working out which wires go to which key is the hard part. Jim VK7JH MMedit