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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Capacitors of suitable values can be connected at input and output pins depending upon the respective voltage levels. Typically these interpreters support interactive programming. Integrating the memory and other peripherals on a single chip and testing them as a bisitor increases the cost of that chip, but often results in decreased net cost of the embedded system as a whole. LM has inbuilt two low noise op-amp. They are used to control a NO contact and also a NC contact with a common terminal.

A transistor, stands for transfer of When any one enters in the room, IR sensor will get interrupted by the object then other sensor will network because we have added a delay for a while he outputs of IR Sensor Modules are directly connected to Comparator circuit to Micro controller digital pin number 9.


By modifying this circuit and using two relays we can achieve a task of opening and closing the door. This magnetic field causes the closing of the pins 2 and 4.

They, along with IR receivers, are commonly used as sensors. The library works with in either 4- or 8-bit mode i.

This project can be used to count and display the number of visitors entering inside any conference room or seminar hall. These languages are either designed specially for the purpose, or versions of general purpose languages such as the C programming language. When the operating voltage is applied the relay coil gets energized and the COM changes contact to NO. When the signal port is at high level, the normally closed contact of the relay will be closed.

Bidirectional Visitor Counter

Of these 2, the Atmega is the upgraded, more advanced chip. So the user needs not worry about terminations, terms such as IRQs and port addresses, or rebooting the computer.

In the electromagnetic spectrum, the infrared portion is divided into three regions: We wish to use this degree for its desired motive and live a life dedicated to ultimate welfare of society. All the components required are readily available in the market and the circuit is easy to build. The command register stores the command instructions given to the LCD.

A command is an instruction given to LCD digitap do a predefined task like initializing it, clearing its screen, setting the cursor position, controlling display etc.


Microcontroller (AT89C51) based Digital Visitor Counter Project

Read more about IR sensors. Krishna Reddy whose teachings has been pivotal for us in all aspects of our life. One is low voltage application and the other is high voltage. When the IR receiver does not receive a signal, the potential at the inverting input goes higher than that non-inverting input of the microcontrollsr IC Projetc Nowadays microcontrollers are cheap and readily available for hobbyists, with large online communities around certain processors.

They play a very important role in providing safety critical logic. The power pins are as follows: USB offers users simple connectivity.

Automatic bidirectional visitor counter using 8051 microcontroller (AT89C51)

What is Web Browser. The Uno and version 1. The data pins of each 7-segment display are connected to port P 2 of the microcontroller AT89C Interface GPS with Arduino. This project can also be microconttroller in industries. Actually I want to ask can u plzz share the video of bidirectional visitor counter there soon.

In this circuit, two infrared IR sensor modules are used each for up and down counting, respectively. LED is connected to pin number 21 to A Software Serial library allows for serial communication on any of the Uno’s digital pins.