Design of a Home Security System Based on Pir Sensor and a Fire System Based on Lm35 Temperature Sensor

Abstract

Home security systems have been developed in accordance with the times, by utilizing sensor devices. This study aims to develop a home security system based on Passive Infrared Receiver (PIR) Sensor and a fire system based on LM35 temperature sensor. The PIR sensor in the security system detects infrared wave emissions from human movement with a maximum range of 5 meters in a semicircular area in front of the sensor. While the LM35 temperature sensor detects changes in room temperature. Both sensors are connected and operated with Arduino Uno. If the PIR sensor detects movement in the room, the buzzer as a notification lights up. Changes in room temperature are detected through the LM35 temperature sensor and send a signal in the form of a buzzer notification. The home security system functions properly as indicated by the buzzer turning on when there is movement. While the fire system turns on when there is a temperature change above 32℃.