ESP32 doesn't connect to Arduino. | could not open port 'COM2': WindowsError(5, 'Access is denied.') - Arduino Stack Exchange
avrdude: ser_open(): can't open device "\\.\COM7": Access denied. - Installation & Troubleshooting - Arduino Forum
Arduino-er: Arduino IDE error - avrdude: ser_open(): can't open device "/dev/ttyACM0": Permission denied
Arduino Nano - "avrdude: ser_open():system can't open device "\\.\COM1": the system cannot find the file specified" - Stack Overflow
avrdude: ser_open(): can't open device "\\.\com3": - Installation & Troubleshooting - Arduino Forum
ESP32 & could not open port 'COM5': PermissionError(13, 'Access is denied.', None, 5) - espressif32 - PlatformIO Community
Arduino Nano - "avrdude: ser_open():system can't open device "\\.\COM1": the system cannot find the file specified" - Stack Overflow
Solution: avrdude: ser_open (): can't open device on Arduino - Ikkaro
Arduino Error - avrdude, can't open device ttyACM0, permission denied - YouTube
Arduino Nano - "avrdude: ser_open():system can't open device "\\.\COM1": the system cannot find the file specified" - Stack Overflow
How to fix “Error: avrdude” when uploading code to Arduino
Arduino error (Ubuntu) - avrdude: ser_open(): can't open device "COM1": No such file or directory - YouTube
avrdude: ser_open(): can't open device "\\.\COM6": Access denied" error on new arduino nano : r/ArduinoHelp
Installing Arduino IDE - SparkFun Learn
Access is denied" error when uploading to board w/ FT232 USB chip with Serial Monitor/Plotter open · Issue #1783 · arduino/arduino-ide · GitHub
avrdude: ser_open(): can't open device "\\.\com3": - Installation & Troubleshooting - Arduino Forum
ESP32 & could not open port 'COM5': PermissionError(13, 'Access is denied.', None, 5) - espressif32 - PlatformIO Community
Can't open device "\\.\COM4": Access is denied error when uploading a sketch from Arduino IDE | I learned it. I share it.
avrdude: ser_open(): can't open device "\\.\com3": - Installation & Troubleshooting - Arduino Forum
Can't open device "\\.\COM4": Access is denied error when uploading a sketch from Arduino IDE | I learned it. I share it.
avrdude: ser_open(): can't open device "\\.\COM9": Access is denied. - Avrdude, stk500, Bootloader issues - Arduino Forum
avrdude: ser_open(): can't open device | Arduino FAQs
Prusa mmu2s firmware won't download I have tried with multiple different ports/ devices specifically for the mmu2s the mother board firmware installs fine : r/prusa3d
