Pololu Robotics & Electronics
My account Comments or questions? About Pololu Contact Ordering information Distributors

Pololu Forum

Cannot connect with Putty to Wixel (Linux)

Hello all,
Just bought a couple of Wixel’s for a project. Was able to get them programed with the Wireless Serial App after I added the permissions rules. That was interesting.

I’m trying now to talk to one of them with the Linux version of Putty. I am having trouble getting Putty to connect with the Wixel. The Wixel is seen by Linux as /dev/ttyACM0. I’ve put this into the Serial Line field, changed the Flow Control to None but still get a pop up message "Unable to open connection to: " No name or anything. The device can be found with lsusb and is identified by “Bus 007: Device 006: ID 1ffb:2200”

I appreciated any hep I can get with this issue.


I suspect there is a permissions problem. Can you please run the following two commands in a shell and post the full output from each command here?

ls -l /dev/ttyACM*


Thanks for the reply. Here ya go …
donald@Gateway-SX2110G ~ $ ls -l /dev/ttyACM0
crw-rw---- 1 root dialout 166, 0 Apr 2 16:16 /dev/ttyACM0
donald@Gateway-SX2110G ~ $ groups
donald adm cdrom sudo dip plugdev lpadmin sambashare
donald@Gateway-SX2110G ~ $

It looks like the permissions for /dev/ttyACM0 allow anyone in the dialout group to read and write from it, but you are not in that group. To add yourself to the group, you can run sudo usermod -a -G dialout $USER and then log out and log back in.



Oh joy!!

1 Like