I’m curious @wizard if you ever considered making something more like “add power+leds” and go like Quindor’s Dig-Uno ? Perhaps making a daughter card for the PB V3 that would allow putting a PB on a Dig-Uno/Dig-Quad.
The idea of simplifying things is kind of nice. You just supply power to the board and it powers the esp32 and the leds… it does the 3.3 logic to 5v switching for the led data line, has fuses(safety) and makes for a more all in one (just add power and go).
Maybe like the serial to data 8x mixed with that concept.