On Tue, Oct 01, 2024 at 08:54:39AM +0200, Dr. Nicola Mingotti wrote: > Still, i don't see /dev/ucomX in /dev ucom(4) devices belong to the /dev/ttyU* and /dev/dtyU* devices nodes, so you should be able to talk to your device like: cu -s 115200 -l ttyU0 Martin