[sdiy] Rotary Switch -> illuminated PB w/ multicolor LED?

Martin Klang mars at pingdynasty.com
Thu Feb 10 19:10:39 CET 2022

On 10/02/2022 17:15, Vladimir Pantelic via Synth-diy wrote:
> push switches with LEDs also exist, but the bicolor versions have
> antiparallel LEDs, so no color mixing...

Yes you can, with two PWMs sinking and sourcing alternatively.

You can also make a push-pull supply, controlled with one PWM, for 
several LEDs using tri-state logic on the other pin.


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