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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I dont like to buy some projects in some other project center.

It is an cohnter low device, which means it gives low output when it receives the Infrared rays. We can send this data to a remote location using mobile or internet.

Reply Roshan 17 January, at 1: We will provide a bulb holder to connect AC bulb. Display — Microcontroller sends the person liht to LCD, so that the person operating this project should read the number of persons inside the room.

Remember me on this computer. Yes, IR sensors detect the direction. Reply papun 2 September, at AT 89S52 micro-controller 4. The LTS is a 0.


ELEX IDEA BLOG: Automatic Room light Controller with Visitor Counter (AT89S52)

So when the IR rays are interrupted by any person then Microcontroller will receive a high pulse from the IR receiver. In some specific seminar hall, conference rooms and study rooms, sunlight can not reach aufomatic daytime as well. We have used to 2 pairs of Transmitter and receiver. We have used a SPDT relay.

And is the microcontroller need to be programmed? Since Microcontroller can not turn on relay directly, we have used a Relay driver circuit. Help Center Find new research papers in: But then all these devices will be turned on or off at the same time. Reply Lakshmi 14 October, at 4: Automatic Room light Controller with Visitor Counter http: And if you want to operate this project on regulated DC supply then you can remove transformer and you can directly give 9 volts supply.

I have prepared the circuit of timer which is giving output of 38khz.

Automatic Room light Controller with Visitor Counter (AT89S52)

The total number of persons inside the room is also displayed on the seven segment displays. Reply kashaf 14 April, at Microcontroller does all the functions. In this project we have set the limit to 15 for demo purpose.


Low power Requirement 5. The output goes high when there is an interruption and it return back to low a f t e r t h e t i m e p e r i o d d e t e r m i n e d b y t h e capacitor and resistor in the circuit i. Enter the email address you signed up with and we’ll email you a reset link. Port 0 is used for the 7-Segment display purpose.

Automatic Room light Controller with Visitor Counter (AT89S52)

Subscribe to updates from Microtronics Technologies Enter your email address: It is central processing unit for the project.

Reason behind choosing IR LED is, infrared beams are not visible to human eyes and they are not easily triggered by other sources in the environment. PIN diode and preamplifier automaticc assembled on lead frame, the epoxy package is automatjc as IR filter.

Relay does not give any voltage output. We have used Infra-Red transmitters. Video of the project: So if any animal crosses the sensor then the visitor counter will be incremented or decremented depending on the direction and then lights will be turned on if count is greater than zero.