Apple-2-HW/unified_retro_keyboard
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198 Commits 9 Branches 8 Tags 62 MiB
35a39dda72
Commit Graph

99 Commits

Author SHA1 Message Date
Dave
35a39dda72 Add README.md to OSI interface 2020-05-27 13:10:28 -05:00
Dave
59f7eb9896 Completed routing on OSI interface board 
Cleaned up and fixed schematics
 2020-05-27 12:22:58 -05:00
Dave
b5fa4f43bb Fix comment in addon.sch 2020-05-21 16:00:06 -05:00
Dave
3c8a02ce9a addon board uses 74HC14 2020-05-21 15:13:04 -05:00
Dave
54a7cd0cd1 Add mounting holes for PCB along right side of keyboard 
- moving interface PCB to right side eliminates clearance issues.
 2020-05-21 13:52:04 -05:00
Dave
1d2ccf8727 Update PCB to latest schematic 2020-05-21 13:51:19 -05:00
Dave
9482a3bf0e Adjustments for OSI RESET and shiftlock circuits 
- adjust RC constants to use simple, common values and reduce number of
different part values.

- Create add-on PCB to provide reset/shiftlock function for older 542 and SB2
keyboards.
 2020-05-21 13:48:38 -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
8e05617042 Move i/o and serial connectors to edge of PCB 2020-05-14 02:38:42 -05:00
Dave
87bd25fa64 Minor silk screen cleanups. 2020-05-14 02:24:30 -05:00
Dave
7e0a32c305 Add PNG rendering 2020-05-14 02:20:48 -05:00
Dave
1ec3e8c3d8 Use png file instead for jpg file 2020-05-14 02:19:26 -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
63b1bb2ad9 Clean up some wording in the Sol-20 readme 2020-05-12 21:47:00 -05:00
Dave
cc4fdfb161 Update README for 2560-based ASCII interface 2020-05-12 17:43:44 -05:00
Dave
218d174489 Updae 3D image 2020-05-12 17:36:29 -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
9393a6e246 Fix descriptive comment for keyboard connectors 2020-05-12 17:11:35 -05:00
Dave
a9a759ac82 Add power button to classic keycaps BOM 2020-05-08 14:19:06 -05:00
Dave
0727621c19 ERC/DRC fixes 
- Removed diodes from pinout page; these were for illustrative purposes only
- Added No-Connects on unused row signals.
 2020-05-06 13:33:05 -05:00
Dave
922de973f8 Adjsut mounting slots and alignment of mounting holes. 2020-05-05 16:58:20 -05:00
Dave
ca6597412a Remove extraneous no-connect 2020-05-05 16:41:31 -05:00
Dave
bef1710bcd Minor cleanups 2020-05-05 16:40:48 -05:00
Dave
3d8438bede Add extra sheet to document keyboard connector pinout 2020-05-01 16:35:24 -05:00
Dave
f81fd264b7 Fix unconnected wire to decoder for rows 8-15 2020-04-27 17:16:31 -05:00
Dave
32e74986c5 More special keys and other circuit cleanup. 2020-04-27 17:16:08 -05:00
Dave
01f57f69e1 Circuit tweaks 
- Add power-on reset to reset circuit
- Modify Shiftlock circuit to require only one jumper
 2020-04-23 11:27:54 -05:00
Dave
0e70d49f44 Remove unused files 2020-04-21 14:37:25 -05:00
Dave
fe238606ff Delete unused filenames 2020-04-21 14:36:44 -05:00
Dave
5fa0f80b4e Add OSI interface schematic 
Provides a keyboard interface to interface with OSI computers.  Equivalent to an
OSI 542C.

- Includes sound circuits

- Includes RESET delay circuit

- SHIFT LOCK can be mechanical push-on/push-off or soft toggle, selectable by
jumper.

- Provide SHIFT LOCK LED output.
 2020-04-21 14:30:59 -05:00
dfnr2
6edc2dc535 Update README.md 2020-04-18 00:21:56 -05:00
Dave
8db577580e Move DIP switch number label 2020-04-18 00:20:23 -05:00
Dave
5c1f5c0297 Update README for Atmega2560 ASCII interface 2020-04-16 17:14:31 -05:00
Dave
ac0d43b97e Add fixed PCB rendering 2020-04-16 17:13:11 -05:00
Dave
8fa9e27afa Remove problematic image 2020-04-16 17:10:52 -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
427080a666 Clarified textbox comments 2020-04-15 15:23:04 -05:00
Dave
192b626be3 More README cleanup 2020-04-14 00:53:27 -05:00
Dave
d08e65bef4 Change ATMega328P to ATMega2560 at top of README 2020-04-14 00:49:44 -05:00
Dave
35d3bfb11b README cleanups. 2020-04-14 00:49:06 -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
Dave
b135998254 On aligners, moved numpad 0.1825" to the right. 2020-04-13 15:08:55 -05:00
Dave
623a04c6c4 Changed resistor value from "R_US" to 470 2020-04-13 15:08:31 -05:00
Dave
b8fae61ba8 Added footprints for 2u key with cherry aligner 
- footprints for PCB
- footprints for aligners
 2020-04-08 02:05:17 -05:00
Dave
787e49e1d9 Cleanups, use cherry aligners with futaba keys, bump rev number 2020-04-08 02:03:50 -05:00
Dave
e784abe263 Moved mounting slots from keyboard PCB to aligners 
- This allows the PCB to sink below the mounting brackets.  The aligner height can
be adjusted relative to the mounting brackets using spacers.

- changed futaba aligners to use cherry stabilizers.

- bumped rev number
 2020-04-08 02:01:14 -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
Dave
4bf0e3eb33 Add series resistors to LEDs and stabilizer to 2u shift 2020-04-05 10:08:14 -05:00