GPIO pin assignment

Basic Information:

[ Voron 0.2] Printer Model:
[MP4 + CM4
logs-20241008-233612.zip (82.6 KB)
] MCU / Printerboard:
Host / SBC
[uploaded
Screenshot 2024-10-08 233735



Screenshot 2024-10-08 234053
] klippy.log

Fill out above information and in all cases attach your klippy.log file (use zip to compress it, if too big). Pasting your printer.cfg is not needed
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Describe your issue:

Hello, I have a Voron Trident and managed to set up some additional fans via the GPIO pins…

I also have a V0.2 with a CM4 and tried to make use of the GPIO pins there for a servo to add a nozzle cleaner.
However, I can’t get rid of the error with Pin must be specified.l
I’ve attached I believe necessary screen shots and hope someone can see the error I’m making.

Thanks in advance.

Obviously. There is nothing in that macro:

...
[exclude_object]

[servo NozzleBrush]

[mcu]
serial = /dev/serial/by-id/usb-Klipper_stm32g0b1xx_1E0017001450415833323520-if00
...

https://www.klipper3d.org/Config_Reference.html#servo

Yep… assigned the wrong file name…DUH!!