Ich bin dann hier raus.
Nur noch für mich:
https://arduinoapprentices.wordpress.com/2021/04/12/avrdude-ser_open-cant-open-device-dev-ttyacm0-input-output-error-arch-linux-arduino-ide-problem/
it seems most likely hardware failure. Not permissions. Try another cable, USB port, etc
Already did. Hardware must be okay. I tried on my Windows partition. There I have no trouble with uploading sketches. I have no clue on what I can try next for make it work on my Linux which I normally use to work.
udev ?
NO.
@11
maybe helpful link Udev rules for Arduino development
Thank you for the input. Unfortunately, it's still not working.
Today I asked a colleague at work to try it on his laptop and he was facing the same error.
I deleted the modem.manager package which is also known for interference.
Next I try this command:
minicom -D /dev/ttyACM0 -b 115200`
But again I get an Input/Output error:
minicom: cannot open /dev/ttyACM0: Input/output error
Then again, the Arduino seems to communicate as I am able to read the board info in the Arduino IDE via Tools->Get board info.
It's not a cable issue either, since everything is working fine in my Windows partition.
What else could it be? Any ideas?
Hallo,
linuxen kann nicht jeder. 
Die IDE ist im Snap Store vorhanden.
Wenn es danach immer noch Rechteprobleme mit dem Port gibt, dann nutze hiervon nur den Teil dafür ...
https://asciich.ch/wordpress/ide-zur-arduino-programmierung-unter-archlinux-einrichten/
https://wiki.archlinux.de/title/Arduino
Übrigens: Im deutschen Teil des Forums sollte man auch deutsch schreiben. Alles andere macht keinen Sinn.
Wir haben alle unsere Limits. Du sicher auch
Danke für die Antwort. Die Websiten gehen leider nicht auf das Problem ein, was bei mir besteht.
In the meantime, I solved the issue. I used a python script to connect to my Arduino via
import serial
ser = serial.Serial("/dev/ttyACM*", 9600)
First, it gave me again an error (Input/Output error). But after un-plugging and connecting my Arduino again it worked. I closed the connection again via
ser.close()
and hereafter was able to upload my sketches via the IDE. Hope it helps someone.
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