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The project is designed to monitor the number of persons entering as well as exiting a room. Electrical loads are switched ON as the first person enters and switches OFF when the last person leaves. IR sensors used in combination with microcontroller to monitor all the operations. This helps in saving lot of energy.

There are two pair sensors, each kept at certain distance from the other. One pair of sensor consists of a transmitter and a receiver, kept exactly opposite to each other. The transmitting part emits modulated IR light which is received at the receiver end and fed to a microcontroller of 8051 family.

When a person enters the room then microcontroller senses it (with the help of IR sensors) and increments the count and displays it on 7 segment displays and also switches ON the load. In the same way when a person exits the room, the count gets decremented. When the last person exits from the room, the lamp is switched OFF. The load operation is handled by a relay interfaced to the microcontroller.

Further the project can be enhanced by using timer arrangement in the project so that if the load switching doesn’t take place for some reason as desired, then timer would complete the task after prefixed time.

Easy to use, Self-explanatory kit.
All-inclusive solution kit.
Extensive audio-visuals available.
Branding-free material.
Pre-programmed Microcontroller.
Call/mail for Tech Support from 10 am - 7 pm.
Can be Customized for Arduino, Raspberry Pi, PIC
Optimum Energy Management System
Hardware Requirements
  • 8051 series Microcontroller
  • 7- Segment Displays
  • Diodes
  • Voltage Regulator
  • Capacitors
  • Resistors
  • Transistor
  • LED
  • Push Button
  • IR LED’s
  • IR Receivers
  • 555 Timers
  • Relay
  • Lamp
Software Requirements
  • Keil compiler
  • Languages: Embedded C or Assembly
Q & A
Q:  How does the counting of persons happen?
A:  Using bidirectional (entry / exit) detection by IR and TSOP, counting of persons takes place.
Q:  Which microcontroller is used in this project?
A:  A 40 pin 8051 microcontroller is used in this project.
Q:  Is it possible to increase the maximum count limit?
A:  Yes, on demand, the maximum count limit can be increased.
Q:  What is TSOP?
A:  TSOP is an IC which acts as a receiver for receiving IR signal.
Average Rating
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Showing 4 of 11 reviews Show All
uppili@pranavane, Puducherry on 19th November, 2015, 05:13 PM

I got to know about Edgefx while I was searching for projects in Google.
Since Edgefx is providing Readymade kit also so decided to buy my project from Edgefx. I liked the explanation of video.
Purchased through online.
For me things are fine and not facing any problems so no changes keep doing the same work.

Shalmali Kakde, Nagpur on 2nd June, 2015, 02:06 PM

Mr. Harshad delivered to me on right time with the right components. Initially I have a doubt but it is cleared by your team. The technical support is good.The Soldering kit should be good enough. I recommended to my college juniors.

Deepak mohakud, PUNE on 2nd June, 2015, 01:36 PM

I came to know about Edgefx through Internet. I used the project title in the Google to find Edgefx.I thought Service and kit may be good. And even my senior bought his project from Edgefx I like it’s not expensive.Yes the kit delivered on time with the right components.I purchased the project through online. FedEx delivery should be improved.

Nadeem Iqbal, Jamshedpur on 1st June, 2015, 01:56 PM

I come to know about Edgefx through Internet.I decided to take, because my project is available in your website.Yes the kit delivered on time with the right components.I purchased through online.No Suggestions.

Rating Breakdown (11 Reviews)

Edgefx Technologies Pvt. Ltd.,
Plot No. 105, 3rd Floor,
Liberty Plaza, Himayathnagar,
Hyderabad - 500029,
Telangana, India
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