IDE-Version 1.8.8
Arduino Mega2560 (original)
OS: Win7
The arduino is connected via USB, virtual serial port 22. I can read the board information from the tool menu, so communication seems to work. When i try to upload a scetch, the following error message appears:
Arduino: 1.8.8 (Windows 7), Board: "Arduino/Genuino Mega or Mega 2560, ATmega2560 (Mega 2560)"
Der Sketch verwendet 18102 Bytes (7%) des Programmspeicherplatzes. Das Maximum sind 253952 Bytes.
Globale Variablen verwenden 491 Bytes (5%) des dynamischen Speichers, 7701 Bytes für lokale Variablen verbleiben. Das Maximum sind 8192 Bytes.
avrdude: ser_open(): can't open device "\.\COM22": Das System kann die angegebene Datei nicht finden.
avrdude: ser_drain(): read error: Das Handle ist ungültig.
avrdude: ser_send(): write error: sorry no info avail
avrdude: stk500_send(): failed to send command to serial port
avrdude: ser_recv(): read error: Das Handle ist ungültig.
So obviously the communication does not work at all. Does anyone has any hint how to solve this?
BY THE WAY: The arduino IDE and especially the board manager are nearly unusable on my HD screen. All other windows programms support the 125/150% Zoom options, but Arduino doesnt.
Regards,
Thorsten