Commit Graph

17 Commits

Author SHA1 Message Date
Dave
5e4c1ed078 Fix shunted diode footprints on encoder boards
The encoder boards (ATmega328P, Atmega2560, Apple2(2560) can accomodate
keyboard matrices with no diodes, by adding per-row diodes on the
encoder board.  For keyboards with per-key diodes (the typical use
case), the per-row diodes are not needed, and therefore the footprints
should be shunted by default, using a special shunted diode footprint.
When diodes are installed, the shunt can be cut with an x-acto knife.
Previous board revs had the correct footprint, but somehow the regular
diode footprint was substituted on the last release of each of these
PCBS.  The correct footprint has been restored.
2021-08-08 13:16:38 -05:00
Dave
5f27567db3 Modify to use DIP switch or jumpers
- Add combined DIP-switch/Jumper footprint to footprint library
- Fix Apple2-encoder and interface-ascii-atmega2560 schematics and PCB to use
new footprint.
2020-12-29 17:11:50 -06:00
Dave
14248df6fe mechanical fit and buildability fixes
- Moved header slightly forward

- Moved interface mount holes do reduce interference with case mount holes

- For all keys in classic keyboard, add option for either through-hole or SMT
diodes and resistors.
2020-06-23 17:21:38 -05:00
Dave
4b5dbd45a2 Fix connector J8 name to "custom connector 2" 2020-06-02 23:09:12 -05:00
Dave
4a266ba3cc Remove extraneous silk screen legends 2020-06-02 23:02:50 -05:00
Dave
8bd7dc8dea Various PCB cleanup
- Fix position of holes around 1x25 connector to match Apple 2 keyboard
- silk screen fixes
- minor trace shoves.
2020-06-02 22:58:50 -05:00
Dave
b6599dd9e2 Add mounting holes for Apple II keyboard 2020-06-02 10:48:01 -05:00
Dave
1f220923e1 Include both ISP and JTAG ports in programming header 2020-05-31 10:40:31 -05:00
Dave
8828d90d96 Add additional mounting holes to ASCII interface PCBS and Sol-20 PCB 2020-05-14 03:12:14 -05:00
Dave
87bd25fa64 Minor silk screen cleanups. 2020-05-14 02:24:30 -05:00
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
d5208f73bf ATMega2560 PCB fixes and updates
- add additional key matrix connector (for custom matrix including Apple 2)
- Fix bypassed diodes.  Diodes on rows 8-15 should have been
- jumpered (bypassed), but instead were standard diode footprints.
2020-05-12 17:12:07 -05:00
Dave
8db577580e Move DIP switch number label 2020-04-18 00:20:23 -05:00
Dave
9cb368be32 Clean up connector labels on ATmel-2560 ASCII interface PCB 2020-04-16 17:02:28 -05:00
Dave
f946a699a0 Add 16-pin socket for custom interface/prototyping 2020-04-16 16:56:06 -05:00
Dave
aaf6233723 Silk screen cleanups 2020-04-14 00:29:19 -05:00
Dave
1a9c84aac1 Add Atmega2560-based ASCII interface board 2020-04-13 20:54:56 -05:00