On Thursday 24 October 2024 03:26:06 pm to...@tuxteam.de wrote: > On Thu, Oct 24, 2024 at 03:21:24PM -0400, Roy J. Tellason, Sr. wrote: > > On Wednesday 23 October 2024 09:38:04 pm Max Nikulin wrote: > > > On 23/10/2024 21:25, Roy J. Tellason, Sr. wrote: > > > > Connecting the device with a USB cable I see it wake up, at which point > > > > there's a menu on its screen. > > > > > > Start "journalctl -f" as root before connecting the device. Logs may > > > contain some hints how to communicate with it. Perhaps "udevadm monitor" > > > with some options may provide more low level info. > > > > I did find some info in one of the log files: > > > > Oct 24 15:14:28 Workstation1 kernel: [1915052.140032] usb 7-1.4.4: new > > full-speed USB device number 13 using ehci-pci > > Oct 24 15:14:28 Workstation1 kernel: [1915052.249009] usb 7-1.4.4: New USB > > device found, idVendor=1a86, idProduct=7523 > > Oct 24 15:14:28 Workstation1 kernel: [1915052.249012] usb 7-1.4.4: New USB > > device strings: Mfr=0, Product=2, SerialNumber=0 > > Oct 24 15:14:28 Workstation1 kernel: [1915052.249014] usb 7-1.4.4: Product: > > USB Serial > > Oct 24 15:14:28 Workstation1 kernel: [1915052.249308] ch341 7-1.4.4:1.0: > > ch341-uart converter detected > > Oct 24 15:14:28 Workstation1 kernel: [1915052.251232] usb 7-1.4.4: > > ch341-uart converter now attached to ttyUSB0 > > ^^^^^^^ > > There it is. Now you can try "cat /dev/ttyUSB0" and wiggle your > tester. Perhaps it just dumps measurements out the serial?
Tried that, and when I plug the device in and it lights up, I select the print option. Then it displays "print wait" on the screen and after a few seconds goes back to the menu. Nothing comes through on the terminal. Perhaps a baud rate mismatch? I'll have to fiddle with it some more... > (More involved tests might offer better success chances, of course :) > > Cheers -- Member of the toughest, meanest, deadliest, most unrelenting -- and ablest -- form of life in this section of space, a critter that can be killed but can't be tamed. --Robert A. Heinlein, "The Puppet Masters" - Information is more dangerous than cannon to a society ruled by lies. --James M Dakin
