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
91 Commits 9 Branches 8 Tags 62 MiB
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6e21b96519
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David Fenyes 6e21b96519 SOL keyboard adjustments 
- Fixed position offset error in first three rows of the SOL keyboard

- moved key matrix interface connector to bottom of board so the parallel output
connector can be at the top of the keyboard.

- Adjusted size of mounting slots to accommodate #6 screws.

- ongoing clean up of traces.
2020-03-16 13:27:09 -05:00
firmware/asdf Add support for "hi-z when low" outputs 2020-03-16 12:56:21 -05:00
hardware SOL keyboard adjustments 2020-03-16 13:27:09 -05:00
README.md fix typo 2020-02-21 00:29:12 -06:00

README.md

Unified ASCII Keyboard

This project aims to provide a (near) universal ASCII keyboard 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, or an OSI case.
  • A keyscan/decoder interface module that can output parallel ASCII, and can be adapted for other protocols.
  • An OSI-compatible interface module.