Details
It is recommended to purchase the alternative solution: RTC Watchdog HAT (B).
RTC WatchDog HAT for Raspberry Pi, auto reset, high precision RTC
RTC WatchDog HAT for Raspberry Pi
Real time clock, watchdog, all in one compact module
![](/img/devkit/accBoard/RTC-WatchDog-HAT/RTC-WatchDog-HAT-details-1.jpg)
Designed for Raspberry Pi series
Standard Raspberry Pi 40PIN GPIO header, for Raspberry Pi series boards, Jetson Nano
![](/img/devkit/accBoard/RTC-WatchDog-HAT/RTC-WatchDog-HAT-details-3.jpg)
for reference ONLY, Raspberry Pi and Jetson Nano are NOT included.
Auto reset monitoring
MAX705 monitoring circuit with auto reset function
![](/img/devkit/accBoard/RTC-WatchDog-HAT/RTC-WatchDog-HAT-details-5.jpg)
High precision RTC
incorporates DS3231SN high precision RTC chip, with backup battery holder
![](/img/devkit/accBoard/RTC-WatchDog-HAT/RTC-WatchDog-HAT-details-7.jpg)
What's On Board
![](/img/devkit/accBoard/RTC-WatchDog-HAT/RTC-WatchDog-HAT-details-intro.jpg)
- USB Type-C power input
- MAX705 watchdog
- Watchdog output enable
1: enabled
0: disabled - CR1220 RTC battery holder
RTC power supply, supports CR1220 button cell - Watchdog output warning
lights up if the watchdog is overflow
- Raspberry Pi 40PIN GPIO header
- RTC chip
DS3231 high precision RTC chip - Watchdog reset pin selection
- Control interface
for use with other host boards
Pinout definition
![](/img/devkit/accBoard/RTC-WatchDog-HAT/RTC-WatchDog-HAT-details-inter.jpg)
Outline dimensions
![](/img/devkit/accBoard/RTC-WatchDog-HAT/RTC-WatchDog-HAT-details-size.jpg)
Resources & Services
![](/img/devkit/LCD/common/res_banner.png)
* Resources for different product may vary, please check the wiki page to confirm the actually provided resources.
Weight: 0.017 kg
Quick Overview
- RTC WatchDog HAT x1
- 2×20PIN female header x1
- Standoffs pack x1
1![](/img/devkit/accBoard/RTC-WatchDog-HAT/RTC-WatchDog-HAT-3_220.jpg)
![](/img/devkit/accBoard/RTC-WatchDog-HAT/RTC-WatchDog-HAT-3_220.jpg)
2![](/img/devkit/accessories/2x20-2.54-8.5-12-female-header-black_93.jpg)
![](/img/devkit/accessories/2x20-2.54-8.5-12-female-header-black_93.jpg)
3![](/img/devkit/general/6-angle-M25x15-Copperx4pcs_93.jpg)
![](/img/devkit/general/6-angle-M25x15-Copperx4pcs_93.jpg)