KUSBA Pro v2 (ADXL345) Instructions

Klipper Prep. (enabling resonance testing)

0. Run the following commands in order. This will take some time. (Based on the [official Klipper docs](https://www.klipper3d.org/Measuring_Resonances.html#software-installation))

~/klippy-env/bin/pip install -v numpy
sudo apt update
sudo apt install python3-numpy python3-matplotlib libatlas-base-dev

Connect your KUSBA PRO via a USB cable to your Raspberry Pi while holding down the button.
SSH into your Raspberry Pi.
Go to the Klipper directory: cd ~/klipper
Clean remaining files from previous build: make clean
Choose the options for the build: make menuconfig

Use these settings:

[*] Enable extra low-level configuration options
    Micro-controller Architecture (STMicroelectronics STM32)  --->
    Processor model (STM32G431)  --->
    Bootloader offset (No bootloader)  --->
    Clock Reference (8 MHz crystal)  --->
    Communication interface (USB (on PA11/PA12))  --->
    USB ids  --->
()  GPIO pins to set at micro-controller startup (NEW)

Exit by typing Q, save by pressing Y.
Build the firmware: make
Find the ID of your KUSBA PRO in DFU mode using lsusb. It should be the device appearing as STM Device in DFU mode.
Flash the firmware: make flash FLASH_DEVICE=1234:5678. Replace 1234:5678 with the ID you found in the above step.
Use ls /dev/serial/by-id/* to find the serial address of your KUSBA PRO. It'll start with: usb-Klipper_stm32g431
Download the adxlmcu.cfg file from this repository.
Upload the adxlmcu.cfg file to your config directory. You can do this on Mainsail/Fluidd etc.
Edit the adxlmcu.cfg file (in Mainsail/Fluidd). Change the MCU serial address (step 12) and the probe points.
Save and close.
If your KUSBA PRO isn't assembled follow the assembly doc first.
Edit your printer.cfg file. Add:
```
[include adxlmcu.cfg]
```
Do your input shaper testing. When done comment the include line to disable the KUSBA PRO. (If you don't do this and unplug the KUSBA PRO, Klipper won't work.)
```
# [include adxlmcu.cfg]
```