What is the problem?
ERROR: Flashing failed - Timeout communication with programmer
What did you already try to solve it?
I have tried every combination described in this link. I was to sure to have everything set up.
Additional information about your setup (OctoPrint version, OctoPi version, printer, firmware,
serial.log or output on terminal tab, ...)
Raspberry Pi Zero W
Serial port: /dev/ttyUSB0
Flash method: avrdude
AVR MCU: ATMega 1280p and also tryied with ATMega 1280
Path to avrdude: /usr/bin/avrdude (it is valid)
AVR programmer type: wiring
AVR baud rate: 250000