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

LarryD October 9, 2021, 11:53pm 3

You know there are the TM1637 DISPLAY.

And the MAX7219