Hi all, So after many hours reading and searching I would like a definitive answer for my simple(?) wiring set up please. I have an Arduino UNO R3 with 2 x WS2812b strips of 30l/m. I am making two arch strips with 86 leds each. Total = 172 leds Each strip will be controlled separately (using Pin…

2 power supplies with ws2812b?

LarryD January 22, 2018, 6:21pm 2

I know we need to tie the grounds,

Then why isn't the top GND commoned?