Expandable GSM and GPS systems simulator

This paper proposes and implements a simple extendable GSM and GPS systems simulator. It allows user to learn advantages of modern wireless technology and use it in many complicated solutions. By combining NMEA protocol and AT commands, system is compatible with newest standards in telecommunication industry. Project uses low cost hardware to produce effects that are nowadays only seen in very expensive solutions. By utilizing popular short messages standard (SMS) with worldwide working GPS system, it is possible to make use of presented module in any project involving wireless technology. This system is useful for simulating mobile phone, tracking device, localizing beacon within map range and using module for more complex data calculating processes.