Can't use any of the GPIO through Klipper

General Discussion
1

Basic Information:

Printer Model: Ender 3 V3 SE
MCU / Printerboard: stock
Host / SBC RPi 3B+
klippy.log

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Describe your issue:

Hello Everyone,
I recently switched from a headless setup to a display with Klipper screen on my RPi3B+, but had a ton of issues doing it starting from my old Raspian Lite setup, so I decided to do a clean install of Raspian, re-install Klipper, transfer the conf files etc.
Before embarking on this journey, as accessories to the whole setup I was also running a RPi camera with an LED connected to the hardware PWM on GPIO12 as flash, and two MPU accelerometers.
I pretty much got everything running again as was, and I got Klipper Screen too, happy days.

However, as much as I tried I can’t get the accelerometers and the LED to work through the console on Mainsail.

I know there are no hardware issues because I can still get everything to work fine on the old SD card that still has the old setup, I can even control the LED by SSHing into the RPi and using raspi-gpio, but if I use the slider on Mainsail, the LED just doesn’t do anything and I get no errors, whilst last I tried reaching the accelerometers I got a NACK response and Klipper shut down.

I followed all the steps in the [RPi_microcontroller] and [Measuring_Resonances] documentations with no errors whatsoever.

I am at a loss.
Help please?
klippy.zip (3.5 MB)

2

I’m just going to up this one. No one has ideas?

3

Have you done as described here?

https://www.klipper3d.org/RPi_microcontroller.html

4

Yes, I have.

Install the rc script :white_check_mark:
Building the micro-controller code :white_check_mark:
Remaining configuration :white_check_mark: (you should be able to see it in the klippy log too)
Optional: Enabling SPI :white_check_mark: (I don’t think it’s needed in my case, but what the hell)
Optional: Enabling I2C :white_check_mark:
Optional: Identify the correct gpiochip :white_check_mark:
Optional: Hardware PWM :white_check_mark:

5

Are you able to:

6

:white_check_mark:

:white_check_mark:

7

Well, I’ve tried reinstalling the RPi microcontroller code but it was pretty much a vane attempt. The only thing I haven’t tried is completely uninstalling said code and then reinstalling, but I lack the how to knowledge on that.

Can anybody nudge me in the right direction?