What is it?

This product is designed to be a GPS tracking unit, which is a navigation device that uses satellite navigation to determine movement and determine geographic location. The product contains a GPS module which receives the GPS signal and calculates the coordinates. Allows you to store data (data logger). It also allows through a modem to transmit this information over the network. Satellite-based GPS tracking units work anywhere in the world using satellite technology such as GPS, GLONASS, Galileo and BeiDou.

Why did you make it?

Because I have the embedded board with GPS/cellular interface and I realize a use case. I have 1 module but I am able to flash other samples.

What makes it special?

Is a simple device to have a very useful use case. see the doc: link to document