The thesis covers the issue of remote control of electrical devices. At the beginning some of the existing solutions are described. A description of the problem follows. The main part is the development of microcontroller system for remote control of electrical devices, including a description of the individual parts of the circuit. Finally, the programming code used is explained.
The solution is a produced control module, located remotely and connected to a local GSM modem. The modem is used for communication with the user that controls the module over the telephone. In addition to turning devices on and off the user can also inquire their status and quantities detected by the sensors. The module provides this information to the user via SMS. The central part of the module is a PIC18F4520 microcontroller, which communicates with a GSM modem via serial communication. The microcontroller is also connected to the DTMF decoder, which allows controlling the module via land line.