So I bought a pcline usb keyboard for £5. I was waiting for something to crop up on ebay or from a friend, but finally I got a new one from pcworld. I gutted the keyboard and kept the pcb:
Working out the wiring matrix was easy using a multimeter.
Lou Smith helped me make the box; he has access to a very nice workshop! One peice of ply, routed 2 slots for the switches.
Back is a 2mm peice of perspex. This pic is before the wires and pcb were put in.
After the wiring is in and checked!
- 10ms latency
- max simultaneous keystrokes is six – resource
- the switches I bought were pretty ropey because they were so old. I needed to open them all up and clean the contacts. Lucky for me they were easy to open
- I still need some rubber to stop it sliding around
- it works very well as a loop controller, but has no analogue controls. I’ve started using a wiimote for that.
latency stuff, looks like 10ms : http://community.cedrus.com/showthread.php?t=107