Klipper and the RPI-zero, Low Cost Remote Printer Control!

Got an old RPIzero you picked up awhile back to hit the limit for free shipping? Put that thing to use and get a great light weight, low cost klipper interface in the process. (helpful links and commands at the bottom)

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Resources:
-https://community.octoprint.org/t/simple-3-wire-serial-connection-from-pi3-to-skr-v1-3-board/10166
-https://github.com/KevinOConnor/klipper/issues/2100

1. Swapping ports used by GPIO and Bluetooth
sudo nano /boot/config.txt
Move the cursor to the very end and add:
dtoverlay=pi3-miniuart-bt

2. Disabling the serial console
sudo nano /boot/cmdline.txt
Look for following string (text) and delete it
console=serial0,115200

3. Raspi-config stuff
sudo raspi-config
Go to 'Interfacing Options'
Then P6 - Serial
Then No
Then Yes
Then go down to finish and reboot.

4. Rebuild your Klipper MCU firmware, unselecting "Use USB for communication (instead of serial). Flash updated firmware to your board

5. Update your printer.cfg:
serial: /dev/ttyAMA0

Видео Klipper and the RPI-zero, Low Cost Remote Printer Control! канала Nero 3dp