Quantity | Component name | |
1 | × | android smartphone any android smartphone (you probably want root) |
1 | × | 4-pin headphone cable just cut open some headphones |
1 | × | 1M resistor probably can have other values, used as "dummy microphone" |
1 | × | reed switch I got mine from some cheap speedometer, if you have 3D printer or similar, you can print the "case" yourself |
1 | × | software something something Linux is not realtime enough? might need to try with a larger diameter wheel |