I have thought of Charlieplexing, where four port-bit can control 12 LEDs.

Thread Starter

Kjeldgaard

Joined Apr 7, 2016
381
I have thought of Charlieplexing, where four port-bit can control 12 LEDs.
But I have not tried to draw three-pin LED schematics, but immediately it easier to connect with two-pin LEDs.



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Please don't hijack other member's thread, now you have your own.
This thread was split from -- minimum pin to drive 4 bi-color leds.
 
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