Arduino quickie: add a watch-dog to your application

This is a small hint, how to add a watch-dog to your Arduino application.

I’m using the Arduino in 24/7 mode in my weather station. For unknow reason the software sends no data to our host system, it got stucked somewhere. So I added the watch-dog to prevent this.

Adding this functionality is fairly simple.

1. you need to include the wdt.h File:

1. in the setup routine you add:

other values are also possible: 15 ms, 30 ms, 60 ms, 120 ms, 250 ms, 500 ms, 1 s, 2 s, 4 and 8 s.

1. in the loop routine you add:

see also: http://tushev.org/articles/electronics/48-arduino-and-watchdog-timer for more information.