This Project “Automatic Room Light Controller with Visitor Counter using Microcontroller AT89S52 continuously monitor the Infrared Receivers, When any . This Project ―Automatic Room Light Controller with Visitor Counter Output signal from AT89S52 is given to the base of the CHAPTER: 3. 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.

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Photo detector and preamplifier in one package 2. Everything is really good. Project Report in pdf format and in word format. Reply Aleee 4 October, at By using this sensor and its related circuit vounter we can count the persons. And the third terminal of potentiometer RV is left open. Reply chinnu 6 January, at 4: Reply papun 2 September, at You will get all documents after purchasing the project.

Automatic Room light Controller with Visitor Counter (AT89S52)

What are the advantages? Automatic Room light Controller with Visitor Counter. But it is less compare the the power consumption of Lights and Fans. Port 0 is used for the 7-Segment display purpose.


LDR will detect the sunlight. And in reverse way, person count will be decremented if somebody leaves the room. Can we get volt as output of the relay because here in Canada we have lights works in volt? Although there are different functions for LCD and person counter modules, but they are combined in a single program.

Rectifier diode — IN 9. Light sensor — LDR will detect the sunlight in the room or we can say LDR is used to detect daytime If there is enough sunlight in the room which means it is a daytime then the relay will not be turned on even if the person count is greater than zero.

Reply Mukta 23 September, at We have to take precaution that the IR rays of first transmitter should fall only on first IR receiver and not on second receiver. You will get a CD with this project: Output Voltages of 5, 6, 8, 9, 10, 12, 15, 18, 24V 3. Enter and Exit Circuits: It is an active low device, which means it gives low output when it receives the Infrared rays. We have used 2 infrared sensors and these are installed on door.


Since counte is used, you can connect an AC bulb or DC bulb as per your requirement. We have used to 2 pairs of Transmitter and receiver.

Easy to use 3. We will reply you total cost including shipping charges. The main intention of this block is to sense the person.

Automatic Room light Controller with Visitor Counter (AT89S52)

It is used only when one single person cuts the rays of the sensor hence it cannot be used when two person cross simultaneously. We can even add Temperature sensor as per your requirement.

I got Output of project is as mentioned on website. Please email us your questions or write comments below. Reply Roshan 17 January, at 1: Human efforts to count the number of person is eliminated.