DIY haptic input knob: BLDC motor + round LCD

Scott Bezek demonstrates SmartKnob, an open-source haptic input knob built from a brushless motor and a round LCD. Because the feel is set in software, the knob can have virtual detents and end stops that change from one mode to the next.

HN likes it as the model for a software-defined physical control, and cites it in threads about screens replacing knobs in cars.

“check this open source project out that you can build yourself - its amazing”