开云体育

Recently installed NanoVNA-Saver in Ubunto, underAnanconda- Python3.8. it loads but I can not connect to the device. I looks like I need to change a permission but I can't seem to fin the find right file. I get the following error:

2021-01-08 16:05:59,931 - NanoVNASaver.NanoVNASaver - ERROR - Tried to open /dev/ttyACM0 (NanoVNA) and failed: [Errno 13] could not open port /dev/ttyACM0: [Errno 13] Permission denied: '/dev/ttyACM0'

Any pointers would be appreciated.
Thanks Chris
KC3OTC

Chris,

You must add yourself to the "dialout" group to have permission to use the
dev/ttyAMC0 device. The easiest way to do this is to open and terminal
"Cntl-Alt-T" an issue the command "sudo adduser yourusername dialout"

Larry AC8YE

On Fri, Jan 8, 2021 at 11:03 PM, Larry Howell wrote:

You must add yourself to the "dialout" group to have permission to use the
dev/ttyAMC0 device. The easiest way to do this is to open and terminal
"Cntl-Alt-T" an issue the command "sudo adduser yourusername dialout"

OK, but in order to make it work, you have to do a user logout+login, or do a reboot.
73, Rudi DL5FA

No reuters, it's immediate and doesn't require the usual Redmond virus
solution for every change. On Ubuntu the etc/group file is sourced because
of the "sudo" command prefix.

Larry AC8YE

Thanks Larry & Rudi! That fixed it.

Regards,
Chris KC3OTC

I'm on Ubuntu 20.04.2 LTS, Linux 5.4.0-80-generic, and installed NanoVNAsaver 0.3.9
When I got the same error mentioned before.
ERROR - Tried to open /dev/ttyACM0 (NanoVNA) and failed: [Errno 13] could not open port /dev/ttyACM0: [Errno 13] Permission denied: '/dev/ttyACM0'
I then did "sudo adduser $USER dialout", and logged out and in (before I saw that was unnecessary). I then confirmed that I had granted myself dialout
cat /etc/group | grep $USER
and also checked the permission on the port
$ ls -l /dev/ttyACM0
crw-rw---- 1 root dialout 166, 0 Aug 8 13:40 /dev/ttyACM0

but I still get the same error. Is it possible there is a different permission I require and don't have?
How can I diagnose why this still fails?

--
"K4EGP / Edward G Prentice" <K4EGP.ham@...>
Retired software engineer QTH:EM95na

Il 08/08/21 19:56, Edward ha scritto:

I'm on Ubuntu 20.04.2 LTS, Linux 5.4.0-80-generic, and installed NanoVNAsaver 0.3.9
When I got the same error mentioned before.
ERROR - Tried to open /dev/ttyACM0 (NanoVNA) and failed: [Errno 13] could not open port /dev/ttyACM0: [Errno 13] Permission denied: '/dev/ttyACM0'
I then did "sudo adduser $USER dialout", and logged out and in (before I saw that was unnecessary). I then confirmed that I had granted myself dialout
cat /etc/group | grep $USER
and also checked the permission on the port
$ ls -l /dev/ttyACM0
crw-rw---- 1 root dialout 166, 0 Aug 8 13:40 /dev/ttyACM0

but I still get the same error. Is it possible there is a different permission I require and don't have?
How can I diagnose why this still fails?

Hi Edward,

I also use PC with Linux Ubuntu platform, and I solved it easily with the command:

*sudo putty /dev/ttyACM0 -serial -sercfg 9600,8,n,1,N*

or using the excellent minicom program, also from the terminal, with the following command:

minicom -D /dev/ttyACM0

You can read the whole article, on my blog, at:



All the best,

'73 de Paolo IV3BVK (K1BVK)

--

Paolo Garbin - IV3BVK - K1BVK

WW LOC JN65GX - 33074 Fontanafredda (PN)
Inviato con Thunderbird su Distribuzione Linux random

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For me : Ubuntu 22.04 nanovna saver 0.2.2

1)plug nanovna
2)in a term
sudo chmod o+rw /dev/ttyACM0

The problem with that is that on a lot of Linux distros, devices are created by udev at boot, so this will typically revert on restart of the system. The proper solution is to add the user to the group for the tty devices (not sure on this dist - "dialout" on some . . . it can be found via ls -lia /dev/tty<whatever>), and then the fix will be persistent.

--
Sent from my Android device with K-9 Mail. Please excuse my brevity.