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Beginners • Re: Need confirmation: Basic wiring diagram for GPIO Inputs

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your Neopixel should receive 5V from a dedicated PSU (as you don't state the number of LEDs in use) as they will consume quite some current.
100nF is a decoupling capacitor for the 3.3V supply of the GPIO expander.
I have a 10 Ampère 5V power supply in place and I actually planned to power the Pixels together with the Pi from it. I will run about 130 LEDs. Do I understand that correct, that I should use two different power supplies, one with 5V for the LEDs and another one with 3.3V for the Pi and Electronics?

Statistics: Posted by Tetrikus — Wed Nov 13, 2024 11:05 am



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