Apple-2-HW/unified_retro_keyboard
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Project to provide keyboard replacements for various classic computers, as well as classic ASCII keyboard
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Dave d5208f73bf ATMega2560 PCB fixes and updates 
- add additional key matrix connector (for custom matrix including Apple 2)
- Fix bypassed diodes.  Diodes on rows 8-15 should have been
- jumpered (bypassed), but instead were standard diode footprints.
2020-05-12 17:12:07 -05:00
firmware/asdf Move F_CPU to header file and clean up 2560 read_row() code 2020-05-12 17:09:49 -05:00
hardware ATMega2560 PCB fixes and updates 2020-05-12 17:12:07 -05:00
README.md Update README.md 2020-04-18 18:12:53 -05:00

README.md

Unified Retrocomputer Keyboard Project

This project aims to provide a (near) universal collection of keyboards for vintage computers. Home computers of the 1970's typically either polled a switch matrix, or interfaced to a parallel ASCII keyboard via a parallel port.

The keyboard allows use of Cherry MX keys, or Futaba MD-4PCS (aka George Risk KBM-01-01) keys.

The keyboard is designed using KiCad in order to be the most useful for anybody wishing to modify the keyboard for more specific uses, or to add to the project.

This keyboard project so far consists of:

  • A classic retro-style ASCII keyboard, modeled after the ADM-3A keyboard, which can be also be populated to fit perfectly in an Apple II/II+ case (with corresponding Apple II keymaps), or an OSI case (with OSI adapter).
  • A Sol-20 compatible keyboard.
  • A keyscan/decoder interface module that can output parallel ASCII, and can be adapted for other protocols.
  • An OSI-compatible interface module.