BKW respin, NOT WORKING, needs Firmware.
PCB from OSHPark: https://oshpark.com/shared_projects/MvDzzk9e
Parts from Digi-Key: https://www.digikey.com/short/zrdw9v
This version aims to combine elements from the following other versions:
- Geoff Graham
The original version - Peter Hizalev
"v2.0" with rearranged PCB and modified firmware - David Hansel
USB keyboard instead of PS/2
Changes in this version:
- remove ps/2 port
- change usb port to type-a female
- barrel power jack
- remove all GND traces
- add copper pours for GND on both sides
- optimize routes, increase clearances, and tweak footprints to get full copper pour coverage
- DigiKey BOM
- Fully self-contained KiCAD files
PCB: done but not tested
need to clean out un-used components and models
need to include a few more symbols & footprints
Firmware: has not been touched at all yet. Firmware probably does not work currently, as it is just a copy of Peter Hizalev's firmware, but the PCB no longer matches that PCB.
Peter Hizalev PCB uses a 20mhz crystal, which this PCB has
This PCB started from Peter's, so if the firmware requires any other hardware differences, like different pinout to the mcu, this board should match
Peter Hizalev firmware expects keyboard on PS/2, which this PCB does not have
TODO:
Generate diffs between the 3 source versions above to understand the changes each made vs the original
Combine Peter Hizalev and David Hansel changes