Localizer with SIM908 module
The device is based on a GSM/GPRS module with included GPS. Its main function is to detect and communicate its…
How to find the location with GSM cells
Discover how to find the coordinate from the GSM cells!! The PHP code to find the coordinates from GSM cells…
Mini GSM localizer without GPS
It’s no the first time that we present a localizer without GPS. We remake the old device with the cheaper…
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…