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All Projects → adafruit → Adafruit_sleepydog

adafruit / Adafruit_sleepydog

Licence: mit
Arduino library to use the watchdog timer for system reset and low power sleep.

Adafruit SleepyDog Arduino Library Build StatusDocumentation

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).
  • Adafruit Feather M4 (ATSAMD51).
  • Arduino Leonardo or other 32u4-based boards (e.g. Adafruit Feather) WITH CAVEAT: USB Serial connection is clobbered on sleep; if sketch does not require Serial comms, this is not a concern. The example sketches all print to Serial and appear frozen, but the logic does otherwise continue to run. You can restore the USB serial connection after waking up using USBDevice.attach(); and then reconnect to USB serial from the host machine.
  • Partial support for Teensy 3.X and LC (watchdog, no sleep).
  • ATtiny 24/44/84 and 25/45/85
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