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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According to their type they are called by the names break before make and make before break contacts.

Chapter 2 explains the power supply used in this project. For example, circuit that use ICxx series in fixed voltage supply for digital circuits. A micro-controller instruction set usually has many instructions intended for bit manipulation bit-wise operations to make control programs more compact. This function is implemented using a pair of Infrared sensors. The Arduino board comes with either 1 of 2 microcontroller chips, the Atmega or the Atmega We really appreciate his gentleness and considerate nature, and at the same time being highly professional at work.

Because at that interesting about digital circuits, need a constant 5V 1A fixed power supply. To use transformer A. Our experience with her here during this study has been extremely helpful and enriching for us. They are specified by their fixed value resistance. Volatile memory RAM for data storage. We would like to thank our Director Dr. Wastage of electricity is one of the main problems which we 0851 facing now a day. A microcontroller can be considered a self-contained system with a processor, memory and peripherals and can be used as an embedded system.

The Atmega is one of the microcontroller chips that are used with the popular Arduino boards. The main areas are sensing and remote controls. In this circuit, two infrared IR sensor modules are microcontrolle each for up and down counting, respectively.


The input section has a coil which generates magnetic field when a small voltage from an electronic circuit is applied microckntroller it. Configured to the output state, GPIO pins can drive external devices such as LEDs or motors, often indirectly, through external power electronics. This circuit is based on IC LM The aim of this project is to count the objects baded entering the room and also switch the led light accordingly.

The inverting input of the comparator LM i.

The significant feature of this project is that it detects the entry of visitors from a single door itself. They are used to control a NO contact and also a NC contact with a common terminal. Microcontrollers must provide real time predictable, though not necessarily fast response to events in the embedded system they are controlling.

Microcontroller (AT89C51) based Digital Visitor Counter Project

They, along with IR receivers, are commonly used as sensors. You will get a CD with this project: That means counter will be incremented if person enters the room and will be decremented if a person leaves the room. In the future, MRAM could potentially be used in microcontrollers as it has infinite endurance and its incremental semiconductor wafer process cost is relatively low. This Code is only visible to Registered users. The Micro-controller does the above job.

Please email us your questions or write comments below. All the components required are readily available in the market and the circuit is easy to build.

In this LCD each character is displayed in 5×7 pixel matrix. When IR light falls on the photodiode, the resistances and these output voltages, change in proportion to the visktor of the IR light received.

Positive supply voltage GND: A less common feature on some microcontrollers is a digital-to-analog converter Counted that allows the processor to output analog signals or voltage levels.


When the IR receiver module receives signal to the potential at the inverting input goes low. Micro-controller read these signals and sends commands to 7 segment LED display. Many embedded systems need to read sensors that produce analog signals. A counter that can change its state in either direction, under control of coubter up—down selector input, is known as an up—down counter.

Bidirectional Visitor Counter

I want to buy one project ,Soalr tracking system,so, what is the total cost snd delivery procedure. Microcontrollers typically do not have a math coprocessor, so floating point arithmetic is performed by software.

By using this circuit and proper power supply we can implement various applications such as fans, tube lights, etc. Where a Harvard architecture is used, instruction words for the processor may be a different bit size than the length of internal memory and registers; for example: Leave a Reply Cancel reply Your email address will vjsitor be published.

Automatic bidirectional visitor counter using 8051 microcontroller (AT89C51)

This version was made in response to a shortage in supply of the through-hole AtmegaP. On the other hand, if the relay was already de-energized when the contacts microcotroller closed, then the contact move oppositely and make an open circuit Figure 4. I want that project, but i need report as soon as possible, can you send report exactly after paymentand i can wait the post only for circuit. By modifying this circuit and using two relays we can achieve a task of opening and closing the door.

However, on Windows, a. They play a very important role in providing safety critical logic. Thus a small sensor circuit can drive, say, a fan or an electric bulb.