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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We would like to thank our Director Dr.

Chapter 6 explains the results and project outputs. Many times we need to monitor the Electricity is one of the most important digitl in this century. Manufacturers have often produced special versions of their microcontrollers in order to help the hardware and software development of the target system. This power supply circuit diagram is ideal for an average current requirement of 1Amp.

I am tahir from Bahrain. Remember me on this computer. We would like to thank Mrs. This allows a part to be used in a wider coumter of applications than if pins had dedicated functions.

The input section has a coil which generates magnetic field when a small voltage from an electronic circuit is applied to it. This makes the USB a plug-and-play interface between a computer and add-on devices. Click to learn more about internal structure of a LCD. The Arduino board comes with either 1 of 2 microcontroller chips, the Atmega or the Atmega Base of electricity is one of the main problems which we are facing now a day.

Other designs are purpose built for control applications. The sensor would observe an interruption and provide an input to the controller which would run the counter increment depending on entering of the person. Once it reaches zero, it sends an interrupt to the processor indicating that it has finished counting. The recommended range is 7 to 12 volts. Some microcontrollers have environments to aid developing certain types of applications. Also known as binary, the Arduino sends these 1s and 0s bits one by one, or Serially.


One is low voltage application and the other is high voltage. The same count is displayed on a set of 7-segment displays through the controller.

Click here to sign up. Main concept behind this project vieitor to measure and display the number of persons entering in any room like seminar hall, conference room. The Uno has 6 analog inputs, labeled A0 through A5, each of which provide 10 bits of resolution i. A PIT may either count down from some value to zero, or up to the capacity of bxsed count register, overflowing to zero.

We would like to baseed Mr. For example, basic on the early microcontrollers Intelbasic and forth on the Zilog Z8as well as some modern devices.

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. The data register stores the data to be displayed on the LCD. Connect the outer two terminals of the potentiometer to 5V and ground, and the middle terminal to pin 3 of LCD. The microcontroller vendors often trade operating frequencies and system design flexibility against time-to-market requirements from their customers and overall lower system cost.

What is the maximum count that can be stored in this project? You can use the Arduino environment’s built-in serial monitor to communicate with an Arduino board. Click the serial monitor button in the toolbar and select the same baud rate used in the call to begin. This voltage is called the operating voltage. He really considers deeply about the welfare of the students. Check this box to confirm you are human. 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.


Interface SD Card with Arduino. In this project, the transmitter section includes an IR sensor, which transmits continuous IR rays to be received by an IR receiver module.

Bidirectional Visitor Counter

Potentiometer is used for setting reference voltage at comparators one terminal and IR sensors sense the object or person and provide a change in voltage at comparators second terminal. The voltage regulator IC maintains the output voltage at a constant value.

A command is an instruction given to LCD to do a predefined task like initializing it, clearing its screen, setting the cursor position, controlling display etc. These ;roject are further divided into two pairs. LED is connected to pin number 21 to I want to buy one project ,Soalr tracking system,so, what is the total cost snd delivery procedure.

Microcontroller (AT89C51) based Digital Visitor Counter Project

In this LCD each character is displayed in 5×7 pixel matrix. This is a bidirectional counter which means it works in a two way. The library works with in either 4- or 8-bit mode i. As the microcontroller used is an 8 bit microcontroller. Reference voltage 0 to 5V only for the analog inputs. AT89C51 is an 8-bit microcontroller and belongs to Atmel’s family. A micro-controller instruction set usually has many instructions intended for bit manipulation bit-wise operations to make control programs more compact.

Volatile memory RAM for data storage.