- usart full duplex communication (trrs cable required!)
- move led data to pin with general purpose timer (ADC3-12/B0)
- add piezo buzzer (AST1109MLTRQ)
- add two rotary encoder positions
- add pimoroni trackball support (footprint thanks to MangoIV)
firmware can be found at: v1 (pre-2022) v2 (current) (latest-commit pcbs are currently untested)
| item | count |
|---|---|
| 1N4148 diodes (SOD-123) | 42 |
| SK6812 mini-e leds | 42 |
| WS2812B leds | 12 |
| kailh mx sockets | 42 |
| proton-c or bonsai-c | 2 |
| EC11 rotary encoders | 2 |
| PJ320A trrs jack | 2 |
| reset switch | 2 |
| AST1109MLTRQ speakers | 2 |
| 128x32 oled display | 2 |
| mcu/oled sockets | 2 (40 pos. each, 56 needed) |
| oled socket pins | 1 (40 pos. each, 8 needed) |
| mcu millmax pins alternatively, diode/resistor legs can be used |
48 |
| pimoroni trackball UK EU NA | 1 |