Bidirectional Visitor Counter

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Project Cost : 4,600

Dispatched in: 3 Days

Project Code: 1103

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Many times we need to monitor the person/people visiting some place like Seminar hall, conference room or Shopping mall or temple. This project can be used to count and display the number of visitors entering inside any conference room or seminar hall. This is a bidirectional counter which means it works in a two way. That means counter will be incremented if person enters the room and will be decremented if a person leaves the room. LCD displays this value which is placed outside the room.

Block Diagram:

Bidirectional Visitor Counter

You will get a CD with this project:

CD contains following things:


  1. Project Report in pdf format and in doc (word) format
  2. Circuit diagram
  3. PCB layout
  4. Microcontroller program in assembly language
  5. Hex file of the microcontroller code
  6. Datasheets of all the components / ICs used in the project

Description in detail:

This is one of the Sensor projects which has Infrared sensors involved into it. And it contains following blocks:

1) Microcontroller

2) LCD Display

3) Sensors

Applications and Advantages:

1. This project can be used in seminar halls, classrooms.

2. This project can also be used in industries.

Future Development:

1. We can interface GSM modem to send this data through SMS.

Video of the project: Bidirectional Visitor Counter

Youtube video coming soon

Question and answers about this project:

Question: Why you have used Infrared sensors to count the no of persons?

Answer: Advantage of using Infrared sensor is that IR rays are not visible to human eyes. Also IR rays are not affected by any other sources. e.g. If you use LDR as a sensor then it can be easily triggered by sunlight or any other sources of light.

Question: What is the maximum count that can be stored in this project?

Answer: As the microcontroller used is an 8 bit microcontroller. Maximum data is FF hex which is 255.


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12 comments on “Bidirectional Visitor Counter

  • 11 July, 2013 at 3:16 pm


    I am tahir from Bahrain .I want to buy one project ,Soalr tracking system,so, what is the total cost snd delivery procedure.

    • 15 July, 2013 at 4:15 pm

      Hi Tahir, you can make payment by Paypal or by western union money transfer. Then we will send the project by DHL courier or DTDC courier. For costing details, please mail us your detailed address then we will reply you with total cost.

  • 11 September, 2013 at 8:11 pm

    I want the circuit diagram of this bidirectional counter as i’m doing a project related to it can u send me if possible

  • 27 September, 2013 at 1:19 pm

    I want that project, but i need report as soon as possible, can you send report exactly after payment , and i can wait the post only for circuit.

  • 4 October, 2013 at 10:12 am

    Does the project, bidirectional visitor counter works for same entery and exit point????????????

  • 8 November, 2013 at 9:43 pm

    i want project report on dam automation by using microcontroler

  • 18 March, 2014 at 7:48 pm

    hi im pradeep,
    what will happen when two person enters the room simultaneously or leaves ,will it count as one or two….??????

  • 21 May, 2014 at 2:32 pm

    what will happen when animals crosses the entrance of the gate where the infrared sensors are placed

  • 28 July, 2014 at 2:50 pm

    as described above that bidirectional counter is used to inc n decreament the number of the visitors entering or leaving the room resp….but what is the need or application to decreament the number of the visitors leaving the room..

  • 5 August, 2014 at 1:07 am

    Must be two gates, one for entry and another for exit, otherwise it is not possible to count and functions the current status of the people in the room. If single gate is used then this project is failed. Because a single gate always shows +1 count while we enter or leave….

  • 24 August, 2014 at 10:51 am

    in this project can we use the RFID card reader .
    at place of IR SENSOR

  • 24 August, 2014 at 3:14 pm

    Actually I want to ask can u plzz share the video of bidirectional visitor counter there soon .. I m making my project on bidirectional visitor counter..


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