Remote control via SMS and an 8-bit microcontroller

This B.Sc. thesis revolves around the development of a system that provides remote control functionality for different electronic appliances over the short message service component of the mobile communication system(GSM). Individual components of the system like the ATmega168A microcontroller, GS64 GSM terminal, MAX232 signal converter and 1Wire temperature sensor DS18B20 are described. The reasons for the choice of these components are presented as well. Our development environment and hardware tools are described in detail. In all chapters a general description of the subject is followed by a detailed description of implementations and steps. Emphasis was put on nontrivial challenges or solutions that were introduced in order to solve an unexpected problem. Also different protocols are introduced. Our implementations of these protocols are explained through means of flow charts, AVR assembly code examples or a simple description. In the end we provide an example of how our system can be used in practice