RTC WatchDog HAT (B) For Raspberry Pi, Onboard DS3231SN High Precision RTC Chip

SKU: 25766
Part Number: RTC Watchdog HAT (B)
Brand: Waveshare


Related Products:



RTC WatchDog HAT (B) For Raspberry Pi, Onboard DS3231SN High Precision RTC Chip
RTC WatchDog HAT (B) for Raspberry Pi

Real time clock, watchdog, all in one compact module

Designed for Raspberry Pi series

Standard Raspberry Pi 40PIN GPIO header, for Raspberry Pi series boards, Jetson Nano

for reference ONLY, the Raspberry Pi boards and Jetson Nano are NOT included.

Auto reset monitoring

monitoring circuit with auto reset function, using I2C communication

High precision RTC

incorporates DS3231SN high precision RTC chip, with backup battery holder

What's On Board
  1. USB Type-C power input
  2. CH32V003 watchdog
  3. CR1220 RTC battery holder
    RTC power supply, supports CR1220 button cell
  4. Watchdog status indicator
    • Blinking rapidly at a frequency of 100ms when the watchdog overflows
    • After the watchdog overflows and runs the reboot command, it will blink at a frequency of 500ms if the host is detected as not having powered off
    • Keeps on when the watchdog function is turned on
    • Keeps off when the watchdog function is turned off
  1. Power indicator
  2. Raspberry Pi 40PIN GPIO header
    for connecting to Raspberry Pi
  3. RTC chip
    DS3231 high precision RTC chip
  4. Watchdog reset pin selection
  5. Control interface
    for use with other host boards

Pinout definition
Product show
Outline dimensions
Resources & Services

* Resources for different product may vary, please check the wiki page to confirm the actually provided resources.

Weight: 0.028 kg

Quick Overview

  1. RTC WatchDog HAT (B) x1
  2. 2×20PIN female header x1
  3. Standoffs pack x1