Dear all, I would to try the feature of the watchdog, but I don't found any solution for the MKRGSM.
The library Adafruit_SleepyDog.h doesn't compiling:
Adafruit_SleepyDog_Library\utility\WatchdogSAMD.cpp:9:30: fatal error: Adafruit_ASFcore.h: No such file or directory #include <Adafruit_ASFcore.h>
I successfully used the sleepy dog lib from adafruit with my MKR 1400. Actually I modified it a bit to use the EARLY WARNING ISR for non sleeping mode too.
Did you installed the Adafruit_ASFcore lib as well on your IDE, because the sleepy dog lib depends on it?