Watchdog script for LoRaWAN concentrator

After years of testing and 365/24/7 usage I see that that my concentrator (nfuse) connected to a Linux box via USB occasionally hangs during all the years.

I don't know if the problem lies on my computer setup or something else.

The solution is this script on crontab and this script saved to /usr/local/bin/ to check and restart the concentrator. Sometimes even the kernel module cdc_acm must reloaded.

You also have to add to sudoers like that YourUser ALL=NOPASSWD:/sbin/modprobe -vr cdc_acm YourUser ALL=NOPASSWD:/sbin/modprobe -v cdc_acm

Crontab entry to check every 15 minutes. */15 * * * * /usr/local/bin/check-lora-nfuse.clv.priv &

ChangeLog

Jan 2025: First publishing. Oct 2025: Some details added.

Made in Linux :)

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