Original code and C64 Key Pos Mapping:
- C64keyboard - Commodore Keyboard library
- Copyright (c) 2022 Hartland PC LLC, Written by Robert VanHazinga
Rewritten/updated for Teensy 3.6/4.1:
- Copyright (c) 2023 Sensorium Embedded, Written by Travis Smith
- Raw keypresss detection for improved emulation
- Ability to Shift special macro keys to c64 (F2/4/6/8, Cursor up/left, etc)
- Diagnostics loopback emulation
- Symbol mapping for readability and easy editing
- Improved code clarity, fixed bugs
- PCB designed/added
PCB assembly instructions can be found here.
Questions? Send e-mail to Travis @ Sensorium
Stand-alone and in-system pictures below. Note that I have sockets above and below the Teensy module in my build. Actual build per BOM using headers will make it sit much lower (similar to the MT8808 chip)