Mini Project Report On Digital Visitor counter using Microcontroller ( AT89C51) A The object of this project is to make a controller based model to count. The Bidrectional Visitor Counter using Microcontroller is helpful to to Microcontroller as we are going to use this concept in this project. . AT89C51 ( based Microcontroller); Programmer; Push Button. tsofcom/bidirectional-visitor-counter/. Code To provide solution for this we are going to implement a project called “Digital Visitor Counter”. Microcontroller: This is the CPU (central processing unit) of our project.

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They are designed to act as two SPDT relays which are actuated by a single coil. For high voltage applications, they are mainly designed to reduce a phenomenon called arcing.

Since this project uses 2 infrared sensors, it can be used as Bidirectional person counter as well. Due to the depletion of non-renewable resources, conservation of energy has become mandatory and by doing so we can reduce electricity bills as well. LCD displays this value which is placed outside the room.

In this circuit, two infrared IR sensor modules are used each for up and down counting, respectively. Hi Tahir, you can make payment by Paypal or by western union money transfer.


Automatic bidirectional visitor counter using 8051 microcontroller (AT89C51)

Log In Sign Up. The outputs of comparators are connected to digital pin number 9 of Micro-controller. Microcontroller vendors often make tools microconrroller available to make it easier to adopt their hardware. Therefore, utilization of these resources for power supply is the best possible way of producing, conserving and renewing energy, which is advantageous as it is pollution free, affordable, and free from environmental impacts. Learn how your comment data is processed.

Microcontroller (AT89C51) based Digital Visitor Counter Project

These pins can be configured to trigger an interrupt on a low value, a rising or falling edge, or a change in value. While some embedded systems are very sophisticated, many have minimal requirements for memory and program length, with no operating system, and bassed software complexity. The input voltage to the Arduino board when it’s using an external power source as opposed to 5 volts from the USB connection or another regulated power source. LED display placed outside the room displays this value of person count.

A customizable microcontroller incorporates a block of digital logic that can be personalized for additional processing capability, peripherals and interfaces that are adapted to the requirements of the application.

Other companies rapidly followed suit, with both memory types. This circuit divided in three couner This project can be used to count and display the number of visitors entering inside any conference room or seminar hall. Usually in the infrared spectrum, all the objects radiate some form of thermal radiations.


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A counter that can change its state in either direction, under control of an up—down selector input, is known as an up—down counter. Each pole has contacts that can be thrown in mainly three ways. Remember me on this computer.

There is a built-in LED connected to digital pin In the electromagnetic spectrum, the infrared portion is divided into three regions: The Atmega is one of the microcontroller chips that are used with the popular Arduino boards.

The rest of the three terminals are used to connect the high voltage AC circuit. And it contains following blocks:. The data register stores the data to be displayed on the LCD.

Click here to sign up. De-Energized Relay OFF In simple, when a voltage is applied to pin 1, the electromagnet activates, causing a magnetic field to vigital developed, which goes on to close the pins 2 and 4 causing a closed circuit. BC is an NPN bi-polar junction transistor.

A transistor, stands for transfer of