Raspberry Pi Zero 2 W: RuntimeError: ws2811_init failed with code -3 (Hardware revision is not supported)

[kas1kas]

I tried to run the software (python3 version thanks to Phenze) on the Zero 2 W. This should work, why not? But I get this message: Traceback (most recent call last): File "/home/pi/rpi_wordclock/wordclock.py", line 187, in word_clock = wordclock() File "/home/pi/rpi_wordclock/wordclock.py", line 67, in init self.wcd = wcd.wordclock_display(self.config, self.wci) File "/home/pi/rpi_wordclock/wordclock_tools/wordclock_display.py", line 70, in init self.strip.begin() File "/usr/local/lib/python3.7/dist-packages/rpi_ws281x/rpi_ws281x.py", line 131, in begin raise RuntimeError('ws2811_init failed with code {0} ({1})'.format(resp, str_resp)) RuntimeError: ws2811_init failed with code -3 (Hardware revision is not supported) Segmentation fault

The exact same software runs fine on Pi 3B+. Anyone knows what this error message means? thanks, Kas

[R0lleston]

I using the exact same piece of hardware on my clock - the Pi Zero and used @bk1285 Development version - Python 3 variant, if you follow the instructions carefully you shouldnt have any problems. Have you tried wiping the sd card and starting from scratch ?

[FrankX0]

@R0lleston: are you using a Pi Zero or a Pi Zero 2? From the traceback messages I conclude that the rpi_ws281x package needs to be updated to support the new hardware.

[R0lleston]

@R0lleston: are you using a Pi Zero or a Pi Zero 2? From the traceback messages I conclude that the rpi_ws281x package needs to be updated to support the new hardware.

@FrankX0 Ah, i didnt read the post correctly, yes, I'm using the Pi Zero, not the 2. Good spotting

[FrankX0]

@kas1kas maybe you were just a little too early. On October 30th support for the Pi Zero 2 W was added to this library: https://github.com/jgarff/rpi_ws281x/commits/816b1474574364ab75d2504096a13fd5e9cc3d5e/rpihw.c

Can you do sudo pip3 install rpi-ws281x again, to see if this resolves your issue?

[kas1kas]

@FrankX0 Thanks for the tip. Right now I'm on a trip for a week, but I'll post the results here once I'm back. If someone else gets it to run on the Pi Zero 2 W before me, with the new library, please respond.

[bk1285]

Hi @kas1kas, I agree with @FrankX0, that it's probably worth trying to update rpi-ws281x. Please report back, if the issue is resolved. Meanwhile, I leave this open.

Best, Bernd

[kas1kas]

Here is my update: $sudo pip3 install rpi-ws281x requirement already satisfied: rpi-ws281x in usr/local/lib/python3.7/dist-packages (4.3.0)

I performed sudo pip3 install --force-reinstall rpi-ws281x This did upgrade to the newer version 4.3.1

now everything works!