Check out the latest keyboard project over at uC Hobby. If you want a free LCD display from uC Hobby, read this.
“Here you see the controller board sitting in the new box with the wires soldered on. I did do some modifications to the switch box PCB. The red jumper wire provides an isolated ground for the LEDs. The two wires, orange and white in upper left get power from the USB connection to light the keys.
The other five wires are the switch common and signals for F9-F12. The unconnected blue wire is F12. I will hook it to something eventually.
I used a business card as an insulator between the two PCBs when I closed up the box. The corners of the keyboard controller PC were cut off to fit it in the box. Everything fit nicely.”