Adafruit SleepyDog Arduino Library
Arduino library to use the watchdog timer for system reset and low power sleep.
Currently supports the following hardware:
Arduino Uno or other ATmega328P-based boards.
Arduino Mega or other ATmega2560- or 1280-based boards.
Arduino Zero, Adafruit Feather M0 (ATSAMD21).
Arduino Leonardo or other 32u4-based boards.
Partial support for Teensy 3.X and LC (watchdog, no sleep).
Adafruit Trinket and other boards using ATtiny MCUs are NOT supported.