I have 5 1m neopixels and I’m having some confusion regarding connecting and powering them. I could set up 1 strip to my PB without the expander by connecting the GND and V wires to both the pixel blaze and a 5v power supply, and connecting the data wire right into the PB.
Is it a similar process for the output expander? Will I need 4 more power supplies so I have one for each strip, or is there some way to only use one?