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Project to provide keyboard replacements for various classic computers, as well as classic ASCII keyboard
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Dave 62b27e0a3d fix videx keymappings fix applesoft keytest prog 
- fixed the videx-like keymappings for the upper/lower keyboard
- moved @ to SHIFT-0 from CTRL-0, and put ID on CTRL-0
- bind the applesoft key test program to CTRL-3
- cram the keyboard test program into one line, to avoid adding a delay
 for BASIC parsing after the CR.
 - in main(), output only printable codes less than INVALID_CODE,
- instead of checking for code != INVALID_CODE.
 		2023-01-02 03:06:10 -06:00
.github/workflows Merge branch 'asdf-build-test' 2022-12-03 04:34:49 -06:00
firmware/asdf fix videx keymappings fix applesoft keytest prog 2023-01-02 03:06:10 -06:00
hardware Merge branch 'videx' 2022-12-30 13:22:43 -06:00
.gitignore Ignore dcm files 2020-06-23 17:20:31 -05:00
README.md Keycaps for Knight and SAIL keyboards (#39) 2021-12-22 02:44:07 -06:00

README.md

Unified Retrocomputer Keyboard Project

This project aims to provide a unified collection of keyboards and encoders for vintage computers, with modular design to reuse as many elements as possible across the designs.

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.

Capabilities so far:

  • Replacement keyboard for OSI computers
  • Replacement keyboard for Apple II/II+ computers
  • Replacement keyboard for the Sol-20 computer
  • Generic ADM-3A/Teletype style keyboard
  • Apple I keyboard (multiple styles)

Coming soon:

  • Replace encoder board on Apple II/II+ keyboards
  • Convert an OSI 542 keyboard into a generic ASCII keyboard
  • Replica for Knight keyboard

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.
  • Keyscan/decoder interface modules that can output parallel ASCII, and can be adapted for other protocols.
  • An OSI interface module, to connect the classic keyboard to an OSI computer.