Commit Graph

16 Commits

Author SHA1 Message Date
Dave
d69dbaf6d1 Cleanups on ASCII interface PCBs, 328P and 2560 versions
- Clean up diode positioning and numbering
- Remove 3D models for devices that are not normally fitted
- clean up labeling
- update README files to match PCBs.
2020-05-14 02:17:03 -05:00
Dave
9393a6e246 Fix descriptive comment for keyboard connectors 2020-05-12 17:11:35 -05:00
Dave
f81fd264b7 Fix unconnected wire to decoder for rows 8-15 2020-04-27 17:16:31 -05:00
Dave
623a04c6c4 Changed resistor value from "R_US" to 470 2020-04-13 15:08:31 -05:00
Dave
787e49e1d9 Cleanups, use cherry aligners with futaba keys, bump rev number 2020-04-08 02:03:50 -05:00
Dave
89bfdd71a9 Move LED current limit resistors to keyboard PCB
For better matching of current limit resistors to LEDs, the resistors are moved
to the keyboard matrix PCB, where they can be tuned for maximum brightness (at
100% duty cycle).  This allows consistent keyboard brightness when a single
interface PCB is swapped between keyboard matrices.
2020-04-05 20:00:20 -05:00
David Fenyes
0bd2fa0330 Move DIP switch to row 8 (9th row) 2020-02-28 21:02:30 -06:00
David Fenyes
9550331adf PCB cleanups
- 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.
2020-02-28 03:31:48 -06:00
David Fenyes
c30deb3442 OUT3 is /RESET on Apple1 and Apple2 connectors.
OUT3 is RESET on both Apple 1 and Apple 2 connectors
Fix comment on the OUT1, OUT2, and OUT3 functions.
2020-02-16 12:55:53 -06:00
David Fenyes
821ef250ca Add SOL-20 connector 2020-01-28 15:04:01 -06:00
David Fenyes
72e4f3d362 Move DIP switch to row 15
So keyboards with more than 8 rows can have keys on contiguous row numbers.
2020-01-03 11:01:11 -06:00
David Fenyes
dff3830307 ASCII interface update
- 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).
2020-01-02 22:13:36 -06:00
Dave
594e3d7d8b Finalize layout and mounting
- 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
2020-01-02 10:08:11 -06:00
Dave
8aeab966d4 Keyboard interface cleanups for ASCII controller
Fixed lines for POWER LED and button, SHIFT Lock, Rubout, and CAPS LED.
2019-12-27 13:03:46 -06:00
Dave
a58dcc4234 OSI mounting holes
- 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.
2019-12-14 03:52:15 -06:00
Dave
784805adc7 first commit 2019-12-12 14:46:29 -06:00