AUTOMATIC ROOM LIGHT CONTROLLER WITH VISITOR COUNTER

Automatic Room light

Controller with Visitor Counter

abstract

                                    This Project “Automatic Room Light Controller with Visitor Counter using Micro controller” is a reliable circuit that takes over the task of controlling the room lights as well us counting number of persons/ visitors in the room very accurately. When somebody enters into the room then the counter is incremented by one and the light in the room will be switched ON and when any one leaves the room then the counter is decremented by one. The light will be only switched OFF until all the persons in the room go out. 

The total number of persons inside the room is also displayed on the LCD display. The microcontroller does the above job. It receives the signals from the sensors, and this signal is operated under the control of software which is stored in ROM. Microcontroller AT89C52 continuously monitor the Infrared Receivers, When any object pass through the IR Receiver's then the IR Rays falling on the receiver’s are obstructed , this obstruction is sensed by the Microcontroller

Hardware components:

                                   

·         AT 89S52 Micro controllers

·         LCD

·         IR RECEIVERS

·         IR TRANSMITTERS

·         RELAYS

·         BC547TRANSISTERS

Software tools:                       

·         Kiel Micro vision.