freerouting
raonslab2
Components (4)
| Reference | Value | Description |
|---|---|---|
| U1 | STM32F411 BlackPill | WeAct Black Pill V2.0 development board, based STM32F411CE, made by Dony Setiawan |
| U2 | TRRS | |
| D1-D34 | Diode | 1N4148 (DO-35) or 1N4148W (SOD-123) |
| S1-S34 | Keyswitch | Push button switch, normally open, two pins, 45° tilted |