RTC WatchDog HAT for Raspberry Pi [Discontinued]

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 theRaspberry 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.

Note: The Raspberry Pi is NOT included

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

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

Resources

• Product Wiki & Manual

Pinout

Package Contents

• 1x – RTC WatchDog HAT
• 1x – 20-PIN female header
• 1x – Standoffs pack