A GPS tracker for a 3rd party logistics company. A medium article on how it came to be:
https://medium.com/abhishek-pratapa/the-gps-tracker-842071f3ebae#.iqlriwf8i
The software of the tracker consisted of an Arduino sketch and a backend initially built in Node.js however we scrapped that after we didn't have the funds to pay for the twillio api access.
The hardware of the tracker consisted of the below components, a full listing of parts is to follow later.