im wondering how to get the adxl345 working im getting Unknown pin chip name 'rpi' error in printer.cfg

[Glod76]

Hello. I'm wondering how to get the adxl345 working I'm getting Unknown pin chip name 'rpi' error in printer.cfg Otherwise loving this over the stock pad [adxl345] cs_pin: rpi:None spi_speed: 2000000 spi_bus: spidev2.0

[resonance_tester] accel_chip: adxl345 accel_per_hz: 70 probe_points: 150,150,30

[chaoschris]

Have you installed the needed software packages as it is described in the documentation? https://www.klipper3d.org/Measuring_Resonances.html#software-installation

Software installation

Note that resonance measurements and shaper auto-calibration require additional software dependencies not installed by default. First, run on your Raspberry Pi the following commands:

sudo apt update sudo apt install python3-numpy python3-matplotlib libatlas-base-dev

Next, in order to install NumPy in the Klipper environment, run the command:

~/klippy-env/bin/pip install -v numpy

Note that, depending on the performance of the CPU, it may take a lot of time, up to 10-20 minutes. Be patient and wait for the completion of the installation. On some occasions, if the board has too little RAM the installation may fail and you will need to enable swap.

[nofuturekid]

You could look up in the already closed issues.

[0xdreadnaught]

The provided steps didn't work with the SPI sensor that comes with the pad. I had to do the following in addition to get it functional:

apt-get install spi-tools chown sonic:sonic /dev/spidev2.0

printer.cfg

[mcu rpi]
serial: /tmp/klipper_host_mcu

[adxl345]
cs_pin: rpi:None
spi_speed: 2000000
spi_bus: spidev2.0

[resonance_tester]
accel_chip_x: adxl345 #bedslinger
accel_chip_y: adxl345 #bedslinger
#accel_chip: adx1345 #non-bedslinger
probe_points: 150,150,10