I'm trying to get into arduino doing some tutorials, but some stuff is not explained, so while working with 7-segment display, I encountered things that puzzled me a bit. 7segment have two grounds(I seem to have two kathode variant) - why? I tested and it seemed to work fine with only one connecte…

Couple of beginner questions

SteveMann October 10, 2021, 3:34am 4

This reduces flickering of the display.

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