Open AccessAutomatic Room Light Controller Using PIR Sensor and Arduino
Author(s) -
K. Jaya Bhavani
Publication year - 2021
Publication title -
international journal for research in applied science and engineering technology
Language(s) - English
Resource type - Journals
ISSN - 2321-9653
DOI - 10.22214/ijraset.2021.37618
Subject(s) - relay , arduino , computer science , controller (irrigation) , motion sensors , proximity sensor , real time computing , computer hardware , electrical engineering , artificial intelligence , embedded system , engineering , physics , operating system , power (physics) , quantum mechanics , agronomy , biology
The mainstay of the project “Automatic room light controller using PIR Sensor and Ardiuno” is the importance of seismological research around the globe is very clear. Where the lights in the room will automatically turn on upon detecting a human motion and stay turned on until the person has left or there is no motion. Initially, when there is no human movement, the PIR Sensor doesn’t detect any person and its OUT pin stays LOW. As the person enters the room, the change in infrared radiation in the room is detected by the PIR Sensor. It can be used to turn ON and OFF the lighting system of the home automatically by detecting the presence of humans. This in turn will make the Arduino to turn OFF the relay (make the relay pin HIGH) and the room light will be turned off quickly as per the time delays sets in the program. Keywords: Aurdino UNO, PIR sensor, Relay unit, room light