Teensy++2.0 Code for using a Commodore PET keyboard (USBPETKeyboard.ino) and a CBM 64 (CBM64Keyboard.ino) as a USB keyboard.
Details and pin layouts see source code. Since PET and CBM64 share the greatest part of application logic, only a few changes of the original PET keyboard driver were necessary. These affect the matrix layout and the special keys. For further information please see these sources:
- Teensy++ 2.0
- Using USB Keyboard
- Simon Inn's great article on retrocomputing with a corrected keyboard matrix. The matrix is here.
- Anders Tonfeldt's video series with detailed instructions on how to wire CBM and Arduino (he's using different hardware, and his source code doesn't run with a Teensy, but this doesn't matter for understanding the basics).
