This automatic room light controller project with visitor counter is a reliable circuit based on the AT89S52 microcontroller. It takes over the task of controlling room lights as well us counting the number of people in a room accurately. When somebody enters a room, the counter is incremented by one and the light in the room is switched 'ON' and when any one leaves the room, the counter is decremented by one. Light is only switched 'OFF' when all the people in the room go out.
The total number of people inside the room is also displayed on the seven segment display by the microcontroller. It receives signals from the sensors, and this signal is operated under the control of software stored in ROM. Microcontroller AT89S52 continuously monitors the Infrared receivers. When any object passes through IR receivers, the IR rays falling on the receivers are obstructed, this obstruction is sensed by the microcontroller
Brand: HBeonLabs, Product assembled by: HBeonLabs