View source for Klipper + ADXL345 Input Shaper guide

=== Guide ===
# Aquire an ADXL345
# Solder 6 wires on to the ADXL345.
# Monut the ADXL to you Extruder. If you got a moving printbed as X you need to move the ADXL345 halfway into the calibration guide. Watch NEROs video!
# Connect the 6 wires to your Raspberry Pi - DO it correct please or you COULD risk frying either your ADXL345, Your Raspberry Pi... or both ;-)
# Install the software - if you havent done so already.
# Update your Raspberry Pi: 
<blockquote><pre>sudo apt update -y
sudo apt upgrade -y</pre></blockquote>
# Install "numpy" - ''Note: this will take quite some time - NERO says 20 minutes. It was faster on my Raspberry Pi 4 but still...''
<blockquote><pre>~/klippy-env/bin/pip install -v numpy</pre></blockquote>
# Install additional dependencies
<blockquote><pre>sudo apt install python-numpy python-matplotlib</pre></blockquote>
# Configure your Raspberry Pi as a secondary MCU - ''Note: I got this working together with screen on my Creality Ender 5 Plus :-)''
<blockquote><pre>sudo cp ~/klipper/scripts/klipper-mcu-start.sh /etc/init.d/klipper_mcu
sudo update-rc.d klipper_mcu defaults</pre></blockquote>
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=== Credits ===
I wrote this guide using NERO 3Ds Youtube video as inspiration, so I hade the commands needed handy to cut'n paste into my Raspberry Pi when ever I want to rerun the calibration.