![Arduino IDE error - avrdude: ser_open(): can't open device "/dev/ttyACM0": Permission denied | Arduino-er Arduino IDE error - avrdude: ser_open(): can't open device "/dev/ttyACM0": Permission denied | Arduino-er](https://1.bp.blogspot.com/-3lEz8FlaFqo/YMDQtzQmeCI/AAAAAAAABQg/tDqEYuAVH7M2ed1VqQqya8hCHl-q30ongCLcBGAsYHQ/s320/Arduino%2BNano%2BRP2040%2BConnect_01.jpg)
Arduino IDE error - avrdude: ser_open(): can't open device "/dev/ttyACM0": Permission denied | Arduino-er
![Arduino Nano - "avrdude: ser_open():system can't open device "\\.\COM1": the system cannot find the file specified" - Stack Overflow Arduino Nano - "avrdude: ser_open():system can't open device "\\.\COM1": the system cannot find the file specified" - Stack Overflow](https://i.stack.imgur.com/cx8c7.png)
Arduino Nano - "avrdude: ser_open():system can't open device "\\.\COM1": the system cannot find the file specified" - Stack Overflow
![Arduino IDE error - avrdude: ser_open(): can't open device "/dev/ttyACM0": Permission denied | Arduino-er Arduino IDE error - avrdude: ser_open(): can't open device "/dev/ttyACM0": Permission denied | Arduino-er](https://i.ytimg.com/vi/Sdou3Uib9Hw/mqdefault.jpg)
Arduino IDE error - avrdude: ser_open(): can't open device "/dev/ttyACM0": Permission denied | Arduino-er
![Can't open device "\\.\COM4": Access is denied error when uploading a sketch from Arduino IDE | I learned it. I share it. Can't open device "\\.\COM4": Access is denied error when uploading a sketch from Arduino IDE | I learned it. I share it.](https://gyorgybalassy.files.wordpress.com/2020/10/arduino-port-advanced-settings.png)
Can't open device "\\.\COM4": Access is denied error when uploading a sketch from Arduino IDE | I learned it. I share it.
![Arduino error (Ubuntu) - avrdude: ser_open(): can't open device "COM1": No such file or directory - YouTube Arduino error (Ubuntu) - avrdude: ser_open(): can't open device "COM1": No such file or directory - YouTube](https://i.ytimg.com/vi/oQLzCdDhkgo/mqdefault.jpg)
Arduino error (Ubuntu) - avrdude: ser_open(): can't open device "COM1": No such file or directory - YouTube
![ESP32 & could not open port 'COM5': PermissionError(13, 'Access is denied.', None, 5) - espressif32 - PlatformIO Community ESP32 & could not open port 'COM5': PermissionError(13, 'Access is denied.', None, 5) - espressif32 - PlatformIO Community](https://community.platformio.org/uploads/default/original/2X/b/bd7659971b80c6b291c18cd8e7356c73ea50bb62.png)
ESP32 & could not open port 'COM5': PermissionError(13, 'Access is denied.', None, 5) - espressif32 - PlatformIO Community
![Arduino IDE error - avrdude: ser_open(): can't open device "/dev/ttyACM0": Permission denied | Arduino-er Arduino IDE error - avrdude: ser_open(): can't open device "/dev/ttyACM0": Permission denied | Arduino-er](https://img.youtube.com/vi/Sdou3Uib9Hw/0.jpg)
Arduino IDE error - avrdude: ser_open(): can't open device "/dev/ttyACM0": Permission denied | Arduino-er
![Arduino Nano - "avrdude: ser_open():system can't open device "\\.\COM1": the system cannot find the file specified" - Stack Overflow Arduino Nano - "avrdude: ser_open():system can't open device "\\.\COM1": the system cannot find the file specified" - Stack Overflow](https://i.stack.imgur.com/0iUf6.png)
Arduino Nano - "avrdude: ser_open():system can't open device "\\.\COM1": the system cannot find the file specified" - Stack Overflow
![ESP32 & could not open port 'COM5': PermissionError(13, 'Access is denied.', None, 5) - espressif32 - PlatformIO Community ESP32 & could not open port 'COM5': PermissionError(13, 'Access is denied.', None, 5) - espressif32 - PlatformIO Community](https://community.platformio.org/uploads/default/original/2X/5/5274b3594ce67a69c4e18e17542bb48628341be8.png)
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 Arduino Nano - "avrdude: ser_open():system can't open device "\\.\COM1": the system cannot find the file specified" - Stack Overflow](https://i.stack.imgur.com/BZxOl.png)
Arduino Nano - "avrdude: ser_open():system can't open device "\\.\COM1": the system cannot find the file specified" - Stack Overflow
![18.04 - Uploading code to arduino gives me the error: "avrdude: ser_open(): can't open device "/dev/ttyACM0": Permission denied" - Ask Ubuntu 18.04 - Uploading code to arduino gives me the error: "avrdude: ser_open(): can't open device "/dev/ttyACM0": Permission denied" - Ask Ubuntu](https://i.stack.imgur.com/ifRmx.png)
18.04 - Uploading code to arduino gives me the error: "avrdude: ser_open(): can't open device "/dev/ttyACM0": Permission denied" - Ask Ubuntu
![Can't open device "\\.\COM4": Access is denied error when uploading a sketch from Arduino IDE | I learned it. I share it. Can't open device "\\.\COM4": Access is denied error when uploading a sketch from Arduino IDE | I learned it. I share it.](https://gyorgybalassy.files.wordpress.com/2020/10/arduino-port-properties.png)
Can't open device "\\.\COM4": Access is denied error when uploading a sketch from Arduino IDE | I learned it. I share it.
![Arduino IDE error - avrdude: ser_open(): can't open device "/dev/ttyACM0": Permission denied | Arduino-er Arduino IDE error - avrdude: ser_open(): can't open device "/dev/ttyACM0": Permission denied | Arduino-er](https://1.bp.blogspot.com/-M3FD6Edry6s/XwmNVxll9OI/AAAAAAAAWU8/EwAq1XYovZQWNnev_zL9_y8Z73WjzHY_QCLcBGAsYHQ/s640/Screenshot%2B%252841%2529.png)
Arduino IDE error - avrdude: ser_open(): can't open device "/dev/ttyACM0": Permission denied | Arduino-er
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