Tuesday, January 12, 2010

Interfacing microcontroller avr to GPS mobile phone

There are already mobile tracking devices out there, but they seemed to be too expensive and too closed for my needs. Another option is one of these new Nokia N95 which have built-in GPS. They are really nice, but about 600€, which is not a bargain. So I decided to do my own." alex said


The first idea was to combine a microcontroller with a GSM and a GPS modul. There are a lot of these modules over at Sparkfun, for example. Finally he choose Telit GM862, which is a GSM modul with an built in GPS receiver. Sparkfun sell great break out boards to make it easier for hobbyist to access these modules.

Here are some of the features of this GSM-GPS module:
  • Quad band GSM
  • 17mA average stand-by, 3.5mA in low-power mode
  • 250mA average operating current
  • SiRF III GPS Receiver Built In
  • Data, Voice, SMS, and Fax
  • Data speeds up to 57.6kbps
  • Supply voltage : 3.4-4.2V
  • CMOS Camera Capable
  • Python Interpreter built-in
Here the link for instruction how to experiment with it step by step.