<p>Onboard auto reset monitoring circuit.</p> <p>Onboard high-precision clock chip (DS3231SN) for providing accurate timing control.</p> <p>Support I2C communication and a 16-bit counter.</p> <p>Onboard the watchdog status indicator to warn the watchdog timeout.</p> <p>[Note]</p> <p>Do not include </p> <p>[Overview]</p> <p>This is an WatchDog HAT (B) designed for with high-precision and watchdog HAT, which refreshes and counts at a limited time and the watchdog circuit can reset the system.</p> <p>[Parameters]</p> <p>Communication interface: I2C</p> <p> chip: DS3231</p> <p>Watchdog chip: CH32V003</p> <p>Power supply: 5V</p> <p>Dimensions: 30.5mm x 65mm</p> <p>Fixed hole diameter: 3.0mm</p> <p>[Designed For Series]</p> <p>Standard 40PIN GPIO Header, For Series Boards, Nano</p> <p>[]for reference ONLY, the boards and Nano are NOT included.</p> <p>Due to different batches, the appearance, color and printed words of the product , which will not affect the use.</p> <p>Colour:Blue</p> <p>Material:PCB</p> <p>Package Contents:</p> <p>1 x WatchDog HAT (B)</p> <p>1 x 2x20PIN long row of seats</p> <p>1 x Stud Pack</p> <p>Only the above package content, other products are not included.</p> <p>Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +\/- 1-3cm.</p>