advantage and disadvantage of object counter using 8051 microcontroller

Object counter using 8051 microcontroller.
This article is about a simple object counter/visitor counter using 8051 microcontroller . AT89S51 belonging to the 8051 family is the microcontroller used here. This circuit can count the number of objects passing across a line , number of persons passing through a gate/door and so on. The can be simply divided into two sections i.e. the sensor section and the display section.

Sensor.

The sensor part consists of a ultra bright ....etc

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construct a RC phase shift oscillator to generate frequency of 1.5khz. a SL100 TRANSISTOR is provided with supply voltage of 12v. choose suitable operating point for the transistor amplifier ....etc

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can u plz send me the report and working of digital voltmeter using 8051..
my e-mail address:[email protected] ....etc

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To get full information or details of ppt for project digital voltmeter using 8051 please have a look on the pages

http://seminarsprojects.net/Thread-digital-3-phase-volt-meter?pid=34405

if you again feel trouble on ppt for project digital voltmeter using 8051 please reply in that page and ask specific fields in ppt for project digital voltmeter using 8051 ....etc

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Password Based Door Lock System using 8051 Microcontroller Traditional lock systems using mechanical lock and key mechanism are being replaced by new advanced techniques of locking system. These techniques are an integration of mechanical and electronic devices and highly intelligent. One of the prominent features of these innovative lock systems is their simplicity and high efficiency. Such an automatic lock system consists of electronic control assembly which controls the output load through a password. This output load can be a motor or a la ....etc

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to get information about the topic digital voltmeter full report refer the page link bellow
http://seminarsprojects.net/Thread-digital-voltmeter ....etc

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advantage dis advantage of electronic eye

Today science and technology are making advances at an amazing rate. So vast is its impact that people now fear the unthinkable. Technology can more appropriately be termed as a friend of humanity. Inventions are the best ways to serve the mankind. Today we are submerged in the sea of discoveries and inventions. The advantages, the society has received from these science inventions and discoveries are immeasurable. From telephones to the internet, calculators to computers, cars to rockets, we are mere ....etc

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Abstract

Voltmeter is a measuring instrument, used to measure the voltage difference between two points in electrical network. Generally there are two types of voltmeters one is analog voltmeter and the other one is digital voltmeter. In analog voltmeter a pointer moves on the scale to represent the voltage. Digital voltmeter directly displays the voltage in digits with the help of analog to digital converter. This article explains you how to design a digital voltmeter in two methods 1) using 8051 microcontroller and 2)the other using IC L701 ....etc

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to get information about the topic digital voltmeter full report refer the page link bellow
http://seminarsprojects.net/Thread-digital-voltmeter ....etc

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Its construction is similar to that of an induction ammeter except for the difference that its winding is wound with a

large number of turns of fine wire. Since it is connected across the lines and carries very small current i.e. 5 to

10mA. ....etc

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