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Grand Prize Winner
(Dec 2012)
Second Prize Winner
(July 2012)

GPS/GSM Module. Overview

This module is a cost effective and flexible solution providing your own microcontroller with wireless Internet connectivity, remote controlling via SMS and GPS functionality. As a GSM module either SIM900D or SIM300DZ might be used, some of the most affordable GSM modules currently on the market featuring embedded TCP/IP stack over AT commands so measurement data, pictures, messages etc might be sent directly to TCP servers over the Internet. Moreover, SIM900D comes with HTTP and FTP commands dramatically simplyfing interactions using these protocols. The module is interfaced via serial port and a few extra lines so it needs minimum GPIO to be reserved on a host controller.

Optional Copernicus GPS module is a sensitive and low power receiver with a frequency of 5Hz for a position resolution. It requires a separate serial port which could be a software (emulated one) on your side if your microcontroller has only one hardware serial port.

Both GPS and GSM chips are fully controllable in terms of power management which allows to switch them on at the moments in time when there is a need and put them in power down mode the rest of the time with only a few uA of current consumption making it very econimical in case of battery power source.

The GPS/GSM module PCB is designed to suite as many potential applications as it possible, it has facilities to connect external microphone, Li-Ion battery, external battery charger, has a connector for modem’s debug port and numerous options of module power supply including onboard DC-DC regulator. Only those components that are used need to be soldered means that the module will be tailored for your own needs at a minimal price.

The project has an extensive software support, there is a thoroughly tested opensource library and set of examples written in C/C++ for AVR microprocessor family. The code might be enhanced at you own discretion, be fully intergated into your own projects and even ported to another microprocessors.

Thank you for your attention and all the best,
Magictale team