Step for step instructions to update the firmware of the Prusa i3 MK3S+ using OctoPrint and the FirmwareUpdater Plugin.

Installation (only once)

Install FirmwareUpdater Plugin
- Go to octopi.local > Settings > Pluginmanager > search for FirmwareUpdater > install
- Link to Plugin: https://github.com/OctoPrint/OctoPrint-FirmwareUpdater
Install avrdude on the RaspberryPi, which is used for flashing
- ssh into octopi e.g. ssh pi@octopi.local
- install avrdude sudo apt install avrdude
Set FirmwareUpdater Plugin Settings
- Settings > Plugins > open FirmwareUpdater Plugin
- Click wrench on top right
- Set following settings:
  - Flash method: avrdude (Atmel AVR Family)
  - AVR MCU: ATmega2560
  - Path to avrdude: /usr/bin/avrdude (we installed it in step 2)
  - AVR Programmer Type: wiring

Update firmware