Change to allow the SAMD51 to enter deep sleep
Change to allow the SAMD51 to enter deep sleep

Disable the SAMD51 USB peripheral's Run-On-Standby (RUNSTDBY) mode to allow the microntroller to enter deep sleep on WFI().
adafruit/Adafruit_SleepyDog,adafruit/Adafruit_SleepyDog