could not open com port
16 views
Skip to first unread message
Davide Cencini
May 3, 2024, 11:55:45 AMMay 3
to InMoov
Hello everyone
I'm trying to run Myrobotlab (last version) on a Raspberry PI3-B with S.O. Raspberry Pi OS (Legacy) with desktop. I am experiencing excessive slowness in loading and managing MRL. Furthermore, I cannot connect the USB/COM port to MRL. I receive the response: could not open port comX. I checked with lsusb which port the Arduino is connected to, so as not to make mistakes, it can't open it.. any suggestions?
I'm trying to run Myrobotlab (last version) on a Raspberry PI3-B with S.O. Raspberry Pi OS (Legacy) with desktop. I am experiencing excessive slowness in loading and managing MRL. Furthermore, I cannot connect the USB/COM port to MRL. I receive the response: could not open port comX. I checked with lsusb which port the Arduino is connected to, so as not to make mistakes, it can't open it.. any suggestions?
Corey Johnson
May 3, 2024, 12:09:50 PMMay 3
to InMoov
It will be slow (matter of perspective) on a Pi 3B running a desktop.
Have you added your user to the allow out list for com ports?
sudo usermod -a -G dialout $USER
Have you added your user to the allow out list for com ports?
sudo usermod -a -G dialout $USER
Davide Cencini
May 4, 2024, 8:18:10 AMMay 4
to InMoov
I haven't solved it. I'm also thinking of installing the lite version without desktop.... do I recommend it?
Corey Johnson
May 4, 2024, 4:23:09 PMMay 4
to InMoov
To be able to write to (aka use) the port, you have to add your user permissions to the port using "sudo usermod -a -G dialout $USER" from a terminal window. That part will not matter if you are using Lite or Desktop versions.
As far as how the system performs, running the Lite version (no desktop) will typically out-perform the Desktop version.
As far as how the system performs, running the Lite version (no desktop) will typically out-perform the Desktop version.
Reply all
Reply to author
Forward
0 new messages