RTC WatchDog HAT for Raspberry Pi

WaveshareSKU: WAV-20374
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Looking for an RTC Module for your next Raspberry Pi project? The RTC WatchDog HAT for Raspberry Pi from Waveshare is exactly what you are looking for. This HAT incorporates a highly accurate I2C real-time clock (RTC) that features a DS3231SN high precision RTC chip, and a backup battery holder to ensure accurate timing in the event of power-losss. A standard 40-pin header layout for the Raspberry Pi and Raspberry Pi Zero makes for easy integration, and is compatible with extended header-pins to enable HAT stacking. 

Online development resources are available, which include wiring guidance and example code, with additional information being found on the Product Wiki & Manual.

Features

  • MAX705 monitoring circuit with auto reset function
  • Incorporates DS3231SN high precision RTC chip with backup battery holder
  • Reset pin selection for swiching watchdog
  • Indicator for watchdog output warning

Package Contents

  • 1x - RTC WatchDog HAT
  • 1x - 20PIN female header
  • 1x - Standoffs pack (2pcs

Resources

Whats On Board

  1. USB Type-C power input
  2. MAX705 watchdog
  3. Watchdog output enable
    • 1: Enabled
    • 0: Disabled
  4. CR1220 RTC battery holder
    • RTC power supply, supports CR1220 button cell
  5. Watchdog output warning
    • lights up if the watchdog is overflow
  6. Raspberry Pi 40PIN GPIO header
  7. RTC chip
    • DS3231 high precision RTC chip
  8. Watchdog reset pin selection
  9. Control interface
    • For use with other host boards

Connection Examples

    Pinout

    Dimensions

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