{"product_id":"rtc-watchdog-hat-for-raspberry-pi-discontinued","title":"RTC WatchDog HAT for Raspberry Pi [Discontinued]","description":"\u003cp\u003eLooking for an RTC Module for your next Raspberry Pi project? The RTC WatchDog HAT for Raspberry Pi \u003cspan\u003e 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\u003c\/span\u003e Raspberry Pi and Raspberry Pi Zero makes for easy integration, and is compatible with extended header-pins to enable HAT stacking. \u003c\/p\u003e\n\u003cp\u003eOnline development resources are available, which include wiring guidance and example code, with additional information being found on the Product Wiki \u0026amp; Manual.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote: The Raspberry Pi is NOT included\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eMAX705 monitoring circuit with auto reset function\u003c\/li\u003e\n\u003cli\u003eIncorporates DS3231SN high precision RTC chip with backup battery holder\u003c\/li\u003e\n\u003cli\u003eReset pin selection for swiching watchdog\u003c\/li\u003e\n\u003cli\u003eIndicator for watchdog output warning\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhats On Board\u003c\/h2\u003e\n\u003cp\u003e\u003cimg height=\"291\" width=\"541\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0176\/3274\/files\/RTC-WatchDog-HAT-details-intro.jpg?width=700\"\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\u003col\u003e\n\u003cli\u003e\u003cstrong\u003eUSB Type-C power input\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMAX705 watchdog\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWatchdog output enable\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003e1: Enabled\u003c\/li\u003e\n\u003cli\u003e0: Disabled\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCR1220 RTC battery holder\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eRTC power supply, supports CR1220 button cell\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWatchdog output warning\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003elights up if the watchdog is overflow\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRaspberry Pi 40PIN GPIO header\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRTC chip\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eDS3231 high precision RTC chip\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eWatchdog reset pin selection\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eControl interface\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eFor use with other host boards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2\u003eConnection Examples\u003c\/h2\u003e\n\u003cp\u003e\u003cimg height=\"405\" width=\"401\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0176\/3274\/files\/RTC-WatchDog-HAT-details-3.jpg?width=700\"\u003e\u003c\/p\u003e\n\u003ch2\u003eResources\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eProduct Wiki \u0026amp; Manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003col start=\"6\"\u003e\u003c\/ol\u003e\n\u003c\/div\u003e\n\u003ch2\u003ePinout\u003c\/h2\u003e\n\u003cp\u003e\u003cimg height=\"368\" width=\"498\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0176\/3274\/files\/RTC-WatchDog-HAT-details-inter.jpg?width=700\"\u003e\u003c\/p\u003e\n\u003ch2\u003ePackage Contents\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e1x - RTC WatchDog HAT\u003c\/li\u003e\n\u003cli\u003e1x - 20-PIN female header\u003c\/li\u003e\n\u003cli\u003e1x - Standoffs pack\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Waveshare","offers":[{"title":"Default Title","offer_id":48624242950362,"sku":"fir1789687775426","price":10.62,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0824\/8318\/3834\/files\/rtc-watchdog-hat-for-raspberry-pi-discontinued_1.jpg?v=1789687779","url":"https:\/\/memoryfoamwear.shop\/products\/rtc-watchdog-hat-for-raspberry-pi-discontinued","provider":"My Store","version":"1.0","type":"link"}