[sdiy] touch-sensitive switches - how?

Neil Harper metadata at gmx.com
Tue Apr 27 20:50:55 CEST 2021

how are touch-sensitive switches like the ones on this done?:


being able to do something like this, especially if it's latching  (one
press on, one press off) would come in very handy. but i've never come
across it in any diy schematics.

i see that a few microcontrollers like the teensy have capacitance touch
pins, but i'm wondering if things like sequencer are done all discrete?

/// Neil Harper
/// Every Wave is New Until it Breaks

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