Raspberry Pi Neopixel "Selected GPIO not possible"

Question

I'm using an Raspberry Pi 4 Model B Rev 1.2 to control an RGB-Ringlight with Python using the Neopixel library. I'm getting the error message: ws2811_init failed with code -11 (Selected GPIO not possible) My code is:

LightMode.CONTROLLER = neopixel.NeoPixel(board.D1,LED_COUNT,brightness=1,pixel_order=neopixel.GRB,auto_write=True,bpp=3)
LightMode.CONTROLLER.fill((0,0,0))

gpio readall tells me BCM Pin 18 is GPIO 1 so I set the pin to 1

Drago · Accepted Answer · 2022-01-26 10:32:58Z

-1

Found the error. NeoPixel uses the Board Pin numbers, not GPIO numbers.

answered Jan 26, 2022 at 10:32

Drago

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