> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt

# 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

## How to buy

- **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works)
- **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt
## 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)