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unable to open port /dev/ttyUSB0 for programmer arduino
Chris Owen · 2026-05-15 · via DEV Community

Chris Owen

I am running arduino IDE on Mint 20. Any device with any communication with the serial port will cause the error. I am a beginner with Linux but I have checked the port in the terminal and all looks good. The same sketch runs fine on my Windows 10, but I am trying to divorce it! Please give me some guidance.

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