USB keyboard to USB CDC converter using a Raspberry Pi Pico
This is currently used to support USB keyboards without PS/2 compatibility on the PicoMiteVGA: https://geoffg.net/picomitevga.html
see https://www.thebackshed.com/forum/ViewTopic.php?TID=16545&P=1
| Pin | Function |
|---|---|
| GPIO0 | serial debug output at 115200n8 |
| GPIO3 | ctrl-alt-del reset output, optionally connect to RUN on the picomite |
| GPIO2 | initial numlock state, jumper to GND for numlock ON |
| GPIO6 | jumper to GND for QWERTZ keyboard support |