GSM localizer without GPS – Part 1
Introduction
Download the article Do you still think you need GPS to know where a person or vehicle is? Well, here…
GSM localizer without GPS – Part 2
Our Project
Regardless of how Google has compiled its database, once we discovered how cell phones using Google Maps Mobile send their…
GSM localizer without GPS – Part 3
GSM/GPRS Module
The module used in our localizer is the Enabler IIIG GSM0308 by Enfora, one of the smallest yet best performing…
GSM localizer without GPS – Part 4
Connecting to Google
In order to be able to associate a GSM cell with its geographic coordinates, we utilize a Google Maps Mobile…
GSM localizer without GPS – Part 5
Schematic
The circuit our localizer is based on consists only of a quad-band GSM/GPRS module interfaced with a a microchip microcontroller…
GSM localizer without GPS – Part 6
Assembly
Our localizer is definitely simple, yet it must be built with care, as all of its components are SMD. Once…
GSM localizer without GPS – Part 7
Settings and Commands
All configurations can be set remotely using any cell phone; what follows is a description of how settings and commands…