The Adafruit FONA 808 is an amazing little breakout board that integrates not only a GSM/GPRS chip, but also a GPS on the same board.

In this project, we are going to use the FONA 808 breakout board along with Arduino to make a cool geofencing project. This project can for example be used on objects that you don't want to go after a given distance. For example, you could place this project in a bag, and immediately know if it has been stolen.

Basically, we'll be able to tell where the project is, and calculate the distance between it's current & initial positions. We are actually going to build two variations of the project.

First, we will use a simple on-board alarm system, composed of a LED and a Piezo buzzer, to tell when the fence has been breached. Then, we will use Adafruit IO to track the location of the project in real-time, and immediately know if the fence has been breached from the Adafruit IO dashboard. Let's start!

This guide was first published on Nov 05, 2015. It was last updated on Nov 05, 2015. This page (Introduction) was last updated on Nov 04, 2015.