# Freetronics Watchdog Timer Module

**Type:** Product page · **SKU:** CE04511 · **Brand:** [Freetronics](https://core-electronics.com.au/brands/freetronics-australia)
**Page:** https://core-electronics.com.au/freetronics-watchdog-timer-module.html ([markdown](https://core-electronics.com.au/freetronics-watchdog-timer-module.html.md))

## Retired product

This product is retired and no longer available for purchase. Replaced by: ADA5959.

**Replacement:** https://core-electronics.com.au/catalog/product/view/sku/ADA5959

## Description

Connects to your Arduino or other microcontroller project and makes sure it keeps running by watching for a “heartbeat” signal. If the signal stops, the watchdog uses the microcontroller reset line to kick it back into life. Ideal for projects that are mounted in hard-to-reach places and need to keep running with long term reliability. Selectable 5 minute or 1 minute timeout interval.

## Features

- Watches for microcontroller activity
- Resets your project if it locks up or stops responding
- 5 minute (default) or 1 minute timeout interval
- Green LED to show heartbeat activity
- Red LED to show watchdog timeout
- Dimensions 22mm x 15mm x 4mm
 
## Resources

- **Watchdog Timer Module Quickstart Guide**
- Discuss on the forum
- [Schematic PDF](https://github.com/freetronics/DOG/blob/master/WatchdogTimer-schematic.pdf?raw=true)
- [Design files](https://github.com/freetronics/DOG)
 
 
**SKU:**
- DOG (12)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/d/o/dog-v1_0-top_1024x1024.jpg_v_1411000294)