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
11 Commits 12 Branches 8 Tags 62 MiB
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Ruby 7%
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Dave a03473769f Added screen clear and reset functions 
- added asdf_actions.c, asdf_actions.h to place misc. key actions
- asdf.c: asdf_activate_action(): added actions for screen clear and reset
- asdf_config.h, Arch/asdf_arch_atmega328p.c: added defs to specify polarity of data,
  strobe, SCREEN_CLEAR and reset outputs.
- Arch/asdf_arch_atmega328p.h: fixed pin definitions for RESET and SCREEN_CLEAR
2019-12-15 02:38:04 -06:00
firmware/asdf Added screen clear and reset functions 2019-12-15 02:38:04 -06:00
hardware OSI mounting holes 2019-12-14 03:52:15 -06:00
README.md Update README.md 2019-12-14 03:48:32 -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 eorge 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.