Hello! I explored thoroughly the forum and beyond but I'm unable to find an answer. I'm unable to connect my ESP32 board to my computer, it won't detect it, and the option of the port it should be using is greyed out. I can't take a screenshot but the port dev/ttyUSB0 is listed next to the "Port" …

Ok! So, the ONE thing I doubted the least ended up being the culprit: the ESP32 module itself. After changing the ESP32 module for another in the board it all worked instantly and flawlessly. I really hope this serves to other people out there... I mean, really, I lost so much time to this DX Than…

Which port is not grayed out? It probably is connected to dev/tty/USB1

Thank you for your quick comment, I will edit the post to clarify: no option other than the grayed out "dev/tty/USB0" is available under the "Ports" option.

My first guess is it's a permissions issue, easily found by searching the forum.

Thank you for your comment :slight_smile: I tryed to add myself to dialout via "sudo usermod -aG dialout $lisandro", then rebooting, but nothing changed. That's the only thing I have found about permissions. Do you have any keyword I might use to find another ways?

I am fairly sure there was one more thing to do, sorry I don't remember to much details at 82. Maybe this one? https://forum.arduino.cc/t/arduino-ide-upload-error-with-esp32-s3/1269765/2?u=sonofcy

Much appreciated Sr. I tried the "sudo chmod a+rw /dev/ttyUSB0" command but it trows the "No such file or directory exists" error. I do agree with you that it seems to be related to permissions (changed by God knows what and when), because the entire setup was working correctly, it just stopped work…

To have the IDE work with Linux you need to be a member of the dial out group. Do the following. type 'groups', is 'dialout' there ? sudo usermod -a -G tty yourUserName - for me sudo usermod -a -G tty gil) sudo usermod -a -G dialout yourUserName Log off and log on again for the changes to …

Do you have the option to take it to another PC (e.g. a friend) and check there? Just curious if it is recognised there at the OS level? If so, what are the VID (idVendor) and PID (idProduct)? Which ESP32 board are you exactly using? Does it have it a dedicated serial-to-usb converter like a CH34x/…

Thank you Sr for the tips :slight_smile: I followed the steps one by one as suggested, but sadly the problem persists unscathed. I can safely confirm that it's not a hardware issue, the board worked before, and the cable too. They where just on the shelf (covered to avoid dust) for some weeks until…

"dev/ttyUSB0" port option greyed out

Development Tools Uploading

SurferTim August 22, 2024, 10:40am 11

Have you looked for the file?
What group is the owner and group?
What permissions are set?
Open a terminal and...

cd /dev
ls -l

ttyCH341USB0 not found in IDE 2 but works great in IDE 1

Error response from daemon: Unable to find group dialout: no matching entries in group file

Can't access the port in linux on chromebook

Arduino 1.8.19 Linux 32 on HP Mini with Ubuntu

Need help with uploading error

[Solved] Uploading to ESP32 works under Win11, not Mint Linux

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"dev/ttyUSB0" port option greyed out

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