I am trying to get serial control to work on a Heltec v3 so that I can control a power relay. The issue starts when I try to send a command via serial. I am using Powershell, when I run any command such as ‘meshtastic --info’ the Heltec board will crash and boot back up. ‘meshtastic --noproto’ won’t make the board crash but will not output anything in Powershell. MQTT has been turned off and Serial has been turned on through the app. There are also no peripherals connected the the board.
The Heltec v3 will normally reboot when you issue changes to them via CLI. I manage 6 of these via CLI. Such devices will also reboot when certain changes are made via the GUI.
If rebooting is the only issue, then sounds like it is working as expected.
However, if your issue is that none of the commands are displaying responses on the screen, it might be your Python app or your serial drivers. I have experienced these issues with my friend’s computers. One got it working by switching from 64-bit Python to 32-bit Python, the other got it working by installing the required serial drivers mentioned here in the Python CLI Prerequisites.