Fangzheng Liu| Quantity | Component name | |
| 1 | × | XIAO RP2040 |
| 1 | × | Milled PCB |
IO-touch: every IO pin is a capacitive sensor
Without any external components or capacitive sensor peripheral, any IO pin can serve as a capacitive sensor
Without any external components or capacitive sensor peripheral, any IO pin can serve as a capacitive sensor
| Quantity | Component name | |
| 1 | × | XIAO RP2040 |
| 1 | × | Milled PCB |