Apple-1-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 7801a17f56 Add DIP switch select for strobe polarity and autorepeat 
- arch-* files: replace private arch_strobe_init() function with public
arch_set_neg_strobe() and arch_set_pos_strobe() functions

- asdf.c,h: add ACTION hooks to set strobe polarity and enable/disable
autorepeat

- break out DIP switch definitions into a separate header file, included by each
keymap.  This ensures consistent DIP switch behavior across keymaps.
2020-05-15 14:42:06 -05:00
firmware/asdf Add DIP switch select for strobe polarity and autorepeat 2020-05-15 14:42:06 -05:00
hardware Add additional mounting holes to ASCII interface PCBS and Sol-20 PCB 2020-05-14 03:12:14 -05:00
.gitignore Git-ignore updates 2020-05-13 15:50:53 -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.