I needed a rotary encoder — I pulled ... all the B transitions are off the screen at that scale. That’s the secret to easily debouncing an encoder. When A is changing, B is stable and vice ...

These interfaces add a physical ‘clicky’ knob to the front of a display without traditional rotary encoder electronics. Instead, a passive rotatable clicky knob is simply stuck to the front of the ...

If successful, such an encoder could be cheap and very fast; it could also in part be made directly on a PCB. First prototype, two etched plates with transparent tape as dielectric material. Disc ...