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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 own geographical position using, on the choice, the cellular phone reference system or the GPS. Its small...
- Posted 11 years ago
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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 <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="content-type" content="text/html; charset=utf-8"/> <title>Tracking cell by Boris...
- Posted 12 years ago
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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 SimCom module SIM900. In the previous post we present the GSM section and now we can present...
- Posted 12 years ago
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GSM localizer without GPS – Part 1
IntroductionDownload the article Do you still think you need GPS to know where a person or vehicle is? Well, here is some news for you: by using cellular network data and properly querying Google,...
- Posted 12 years ago
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GSM localizer without GPS – Part 2
Our ProjectRegardless of how Google has compiled its database, once we discovered how cell phones using Google Maps Mobile send their requests, we immediately thought of employing that functionality to build a specific remote localizer, which, unlike those...
- Posted 12 years ago
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GSM localizer without GPS – Part 3
GSM/GPRS ModuleThe module used in our localizer is the Enabler IIIG GSM0308 by Enfora, one of the smallest yet best performing modules of this type currently available. The device, which utilizes a chipset made by Texas Instruments, is...
- Posted 12 years ago
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GSM localizer without GPS – Part 4
Connecting to GoogleIn order to be able to associate a GSM cell with its geographic coordinates, we utilize a Google Maps Mobile function, which is not documented, though. Before doing this, however, we need to know which cell the...
- Posted 12 years ago
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GSM localizer without GPS – Part 5
SchematicThe circuit our localizer is based on consists only of a quad-band GSM/GPRS module interfaced with a a microchip microcontroller which, after initializing the I/Os and UARTs it has at its disposal, puts the main program in...
- Posted 12 years ago
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GSM localizer without GPS – Part 6
AssemblyOur localizer is definitely simple, yet it must be built with care, as all of its components are SMD. Once the two-sided board is ready, be sure you have a very fine-pointed welder of up to 20...
- Posted 12 years ago
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GSM localizer without GPS – Part 7
Settings and CommandsAll configurations can be set remotely using any cell phone; what follows is a description of how settings and commands work. Let us start with the list of numbers that can be used to request location data:...
- Posted 12 years ago