Automatic Room Light Controller Using Arduino and PIR Sensor

Arduino-based Programmable room light controller using a passive infrared (PIR) sensor used to regularly turn off and brighten the lighting arrangement of a home or office by sensing the presence of a human. Standard Auto Room Lighting fixtures can be installed in places like classrooms, personnel lodges, carports, stairwells, and restrooms where we don't require constant lighting, but only when people are seated there. Additionally, by using this system, energy expenditures can be reduced because electricity will only be used when a person is present, such as when necessary lights are abruptly turned ON or OFF. This chapter has suggested utilizing an Arduino, a PIR sensor, and a hand-off module to create an automatic room light regulator. A PIR sensor will detect when a person moves, and depending on their response, the PIR sensor unit will control the activity of exchange. Power consumption can be reduced with the help of the suggested technique.