The purpose of this paper is to create a functional system in terms of hardware and software, to create a home alarm system. The system can monitor the following parameters: temperature, possible gas emissions, the presence of smoke as a result of a fire, as well as the audible warning of exceeding normal values and also the ventilation of the house. This system will be built using the Arduino Mega 2560 development platform, and programming will be done using the LabVIEW graphical programming. Hardware resources that will be used in the paper are: Arduino Mega 2560, two LM35 Precision Centigrade Temperature Sensors, the MQ-2 smoke sensor that is sensitive to smoke and to the flammable gases, the MQ-135 Air Quality Sensor, the MQ-5 Gas Sensor sensitive for LPG, natural gas, coal gas,the DC 12V Brushless Cooling Fan, a breadboard, a buzzer, 2 LEDS with 2 x suitable resistors for to limit the current through LEDs (220 Ohms is fine) and connecting wires. The results will be displayed through the serial interface on the computer, in the LabVIEW program.
