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 ed5f3fc8d6 Moved Cherry MX and futaba pads farther apart in combined footprint 
- Offset cherry MX pads and aligners downward 0.004" from origin

- Offset futaba pads and aligners upward -0.004" from origin

- Update footprints in classic and sol-20 pcbs and aligners

- adjust mounting slots in Sol-20 aligners to match futaba or cherry offset
2020-08-17 15:21:06 -05:00
firmware/asdf Allow settling time for each row output change. 2020-08-06 15:22:52 -05:00
hardware Moved Cherry MX and futaba pads farther apart in combined footprint 2020-08-17 15:21:06 -05:00
.gitignore Ignore dcm files 2020-06-23 17:20:31 -05:00
README.md Update top level README 2020-07-08 22:17:22 -05:00

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

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.