In this project we will use IR sensors to measure distance. We will 89c051 microcontroller for this purpose. We will program microcontroller with assembly language i.e. the programming will be in assembly language. In this project we will sense the signal from infrared sensor then according to increasing no of persons in the room microcontroller will increase the intensity of the room. This project will help in controlling many applications like in machinery to control machine with increasing strength of material.
We will use two set of ir sensors . one will count the no of persons increasing other will decrease the no of count decreasing.
We will use 12Mhz crystal to provide Clock to microcontroller.
There will IC 7805 as a voltage regulator. And two 1000µf and 470µf as a filtering capacitors.