Diseño e implementación de un sistema de control y monitoreo inalámbrico mediante radiofrecuencia, Bluetooth y SMS en aplicaciones domóticas.

Abstract

This paper explains the functionality of the technologies currently used in telecommunications, and their application in home automation and control and telemetry systems. The starting point is to demonstrate that the wireless technologies commonly used by smartphone users can use it as a control system inside or outside their home, for which the ATMEL 328P microcontroller was used, which performs the control operation and monitoring in the module transmitter and receiver of data, programming was done in language "C". The system has 2 radiofrequency modules at a frequency of 433 MHZ, which are always sending temperature and humidity sensor data from the transmitter. In addition, as part of this project, an APP was made in the Android system to control the lights of the house, whether as switches or by varying the intensity of the same. This APP is connected by a Bluetooth module HC06 which in turn is linked to the smartphone, making the communication of both elements and interacting in the control system and data acquisition in a range of up to 20 meters. As an additional control, a SIM900 four-band modem is used, this module connects like a conventional telephone through AT commands, which is controlled by the microcontroller that activates text messages (SMS) to the user in case there is some abnormality in the reading of measurement in the APP.