October 2, 2020

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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All the components required are readily available in the market and the circuit is easy to build.

Microcontroller (AT89C51) based Digital Visitor Counter Project

Learn how your comment data is processed. For low voltage applications, more preference will be given to reduce the noise of the whole circuit. In addition, some pins have specialized functions: Additionally, some pins have specialized functionality: This project can also be used in industries. Here in this circuit we have used two comparators for two sensors LM is used as a comparator. When somebody enters into the room then the counter is incremented by one. SRAM is volatile and will be lost when the power is cycled.

We really appreciate his gentleness and considerate nature, and at the same time being highly professional at work. If you use LDR as a sensor then it can be easily triggered by sunlight or any other sources of light. Maximum current draw is 50 mA. This project is not limited to a specific application or a specific operating environment, but it can be easily implemented wherever such an application is needed.


Hi what will happen when animals crosses the entrance of the gate where the infrared 0851 are placed. A PIT may either count down from some value to zero, or up to the capacity of the count register, overflowing to zero. The sensor inputs are defined as up and down selector modes for the counter in the code. This is true even in the day time at some places like conference halls or offices where a good brightness levels are desired.

The Uno has 6 digitsl inputs, labeled A0 through A5, each of which provide 10 bits of resolution i. Choosing Motor For Robots. So you can connect and disconnect the load by controlling the level of the control signal port.

An IR sensor can measure the heat of an object as well as detects the motion. Hi Tahir, you can make payment by Paypal or by western union money transfer. Relays are available in different operating voltages like 6V, 12V, 24V etc. The Arduino software includes a serial monitor which allows simple textual prject to visiyor sent to and from the Arduino board. It supports all kinds of data, from slow mouse inputs to digitized audio and compressed videos also allows hot swapping.

Programmable memory also reduces the lead time required for deployment of a new product.

Bidirectional Visitor Counter

This makes the USB a plug-and-play interface between a computer and add-on devices. Each pin can provide or receive a maximum of 40 mA and has an internal pull-up resistor disconnected by default of 50 kOhms.

We wish to use this degree for its desired motive and live a life dedicated to ultimate welfare of society. I want to buy one project ,Soalr tracking system,so, what is the total cost snd delivery procedure.


Automatic bidirectional visitor counter using microcontroller AT89C And counting is displayed on a 7 Segment LED through the controller. We would like to thank Mrs.

Automatic bidirectional visitor counter using 8051 microcontroller (AT89C51)

Microcontrollers were originally programmed only in assembly language, but various high-level programming language, such as C, Python and JavaScript, are now also in common use to target microcontrollers and embedded system. Since this project uses 2 infrared sensors, it can be used as Bidirectional person counter as well.

Originally these included EPROM versions that have a “window” on the top of the device through which program memory can be erased by ultraviolet light, ready for reprogramming after a programming “burn” and test cycle.

It has mainly eight relay terminals. A transistor, stands for transfer of Possible interrupt sources are device dependent, and often include events such as an internal timer overflow, completing an analog to digital conversion, a logic level change on an input such as from a button being pressed, and data received on a communication link.

The voltage source in a circuit may have fluctuations and would not give the fixed voltage output. Typically these interpreters support interactive programming.

Mifrocontroller are designed to act as two SPDT relays which are actuated by a single coil. Some microcontrollers have environments to aid developing certain types of applications. This project shows how to use the display and noDisplay methods to turn on and off the display.

The command register stores the command instructions given to the LCD.