Dumb stick-on knob adds rotary encoder to touch screen

Microchip has introduced a touch controller family for ‘knob-on-display’ (KoD) human-machine interfaces. 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 display glass (diagram right) and one or more electrodes underneath interact ...
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