My accelerometer does not work

General Discussion
1

Basic Information:

Printer Model: Ender 3
MCU / Printerboard: BTT SKR mini E3 V3
Host / SBC: Debian 12 server on my old pc
klippy.log
klippy (3).log (889.6 KB)

I connected my ADXL 345 to the SPI port on the mcu and i wrote the new config. Then i wrote “ACCELEROMETER_QUERY” in the console and i get this error “Invalid adxl345 id (got ff vs e5).
This is generally indicative of connection problems
(e.g. faulty wiring) or a faulty adxl345 chip.”
So I googled around and went to some reddit pages but could not find a solution

2

Likely, exactly what the error message says, at least when assuming the correct pins etc are used. See Measuring Resonances - Klipper documentation

3

So i just cut off the connector of a cat6 cable and solder it on to the accelerometer? Or am I just stupid and can’t read

4

The ADXL with SPI connection is very sensitive to cable quality. Follow the guidance in the documentation regarding cable type, wire pairs, and grounding the shield.
Whether you solder them or properly crimp matching connectors is a matter of personal preference.

Generally, boards that combine an IMU with a small MCU are a lot less susceptible to such issues.