File "/home/pi/ledtest.py", line 8, in <module>
pixels1 = neopixel.NeoPixel(board.D18, 55, brightness=1)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/pi/env/lib/python3.11/site-packages/neopixel.py", line 141, in __init__
self.pin = digitalio.DigitalInOut(pin)
^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/pi/env/lib/python3.11/site-packages/digitalio.py", line 193, in __init__
self.direction = Direction.INPUT
^^^^^^^^^^^^^^
File "/home/pi/env/lib/python3.11/site-packages/digitalio.py", line 223, in direction
self._pin.init(mode=Pin.IN)
File "/home/pi/env/lib/python3.11/site-packages/adafruit_blinka/microcontroller/bcm283x/pin.py", line 40, in init
GPIO.setup(self.id, GPIO.IN)
RuntimeError: Cannot determine SOC peripheral base address
I’m using Raspberry Pi 5, Bookworm OS Desktop. I wired everything as per the tutorial.
Probably the code will work with a Bullseye OS, Bookworm needs a virtual environment setup.
I started to test this and it complained about rpi_ws281x being an externally managed environment.
I will set that up and post here results, but a quick fix might be loading Bullseye OS.
Cheers
Jim
PS or someone else might have a solution for you.
EDIT: As posted by someone else the --break-system-packages flag might allow it to work.
ie. sudo pip3 install rpi_ws281x --break-system-packages
But didnt install the packages correctly when I tested it.
Suggest reading the page below. Note the two warning messages.
The date on this web page is 15 Jul 2024.
Sound must be disabled to use GPIO18. This can be done in /boot/config.txt by changing “dtparam=audio=on” to “dtparam=audio=off” and rebooting. Failing to do so can result in a segmentation fault.
If you have the Pi 5, Neopixels are not currently working due to a change in the GPIO controls.
The original Core electronics guide is a little old now me thinks.
Regards
Jim
Yeah I know it’s because of the GPIO for RPi 5, but it’s the neopixel module which has to be updated. They are just talking about accessing GPIO on the high-level, but I need it to interface with the WS28112B
Adafruit has suggested using SPI (Page 8 of this guide) to use Neopixels on the Pi 5. They have also put together another guide to walk you through it. Hopefully this can get your project back on the road.