Apple-2-HW/unified_retro_keyboard
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201 Commits 9 Branches 8 Tags 62 MiB
e415d43c84
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102 Commits

Author SHA1 Message Date
Dave
e415d43c84 Update addon board updates 
- Add diode to C5 to prevent discharge into 5V

- allow selection of default ON or OFF soft switch.
 2020-05-27 19:23:34 -05:00
Dave
42989dbd41 Update readme for clarity 2020-05-27 13:12:54 -05:00
Dave
4e40e324b6 Add image to README 2020-05-27 13:11:30 -05:00
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