Dave
9f7520fa50
Remove outdated note
2020-06-06 12:54:44 -05:00
Dave
c44a270e78
Another small README edit
2020-06-05 10:53:35 -05:00
Dave
a97de184fd
Minor README edit
2020-06-05 10:38:24 -05:00
Dave
9e5d71d5ba
Change photo width
2020-06-05 10:35:01 -05:00
Dave
eb25119569
Add photo of SOL keyboard
2020-06-05 10:31:49 -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
0927bc395d
Update screen shot
2020-06-02 22:52:07 -05:00
Dave
b9da4f4b3e
Fixed Keyboard encoder connector
...
- remove unused "jumper holes"
- align pins with spacer holes.
2020-06-02 22:50:12 -05:00
Dave
34f727e1e2
Add Apple-2 encoder, a custimized version of the 2560 ASCII encoder
2020-06-02 22:39:34 -05:00
Dave
b6599dd9e2
Add mounting holes for Apple II keyboard
2020-06-02 10:48:01 -05:00
Dave
488e76c92c
update pcb rendering to latest rev
2020-05-31 10:43:31 -05:00
Dave
1f220923e1
Include both ISP and JTAG ports in programming header
2020-05-31 10:40:31 -05:00
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