- swap numbering of row select protection diodes for cleaner PCB labeling
- clarify labeling on GPIO pins on the MCU
- bump rev to 2.4 to indicate work in progress. Release will be 2.5.
- pulled in the right border and mounting holes for Apple-II mounting dimensions
- modified the "~^" key courtyard to allow closer positioning of the upper right
Apple II Mounting hole. (The ~^ key is not installed in an Apple II keyboard)
- Moved tracks and diodes as needed to keep everything in the new outline.
- Add extra key to the left side of row 4 to permit "inverted T" for those who
want it.
- Tiny shifts of several keys to correct key distances
- Include mounting holes with daughter board connector, to ensure consistency.
- Fix wrong direction DIP switch diodes
- Add buffers to permit ISP lines to also be used as output and LED drivers
- Allow 3 keyboard LEDs and 3 host outputs (RESET, CLEAR, BREAK, LOCAL, etc.).
- Outputs 1 and 3 are general purpose (can be open drain or driven). Output 2
is open collector (with optional on-board pullup).
- Add apple 2 mounting slots (and stretch PCB to accommodate slots
- Add pass-through holes in aligners for OSI keyboard spacers
- Move 'ESC' key next to '1' key
- Add TAB key next to Q key
- remove 'here is' and finalize "helper" keys along left side of keyboard
- move legends off of PCB traces
- update to release 1.3
The "0" and "O" keys were swapped on the PCB, requiring a keymap fix for the
ASCII adapter. The swapped keys would not be an issue for a keyscanning ASCII
converter, but would preclude use in OSI systems, so this fix puts the keys
back in position compatible with OSI.
- Add OSI-compatible mounting holes.
- Adjust keyboard and aligner holes to make room for the OSI mounting holes
- Change "Universal Keyboard" to "Unified Keyboard" in the design files.
