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Title: Interfacing of 8051 with displays
Page Link: Interfacing of 8051 with displays -
Posted By: seminar paper
Created at: Monday 12th of March 2012 04:53:25 PM
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Interfacing of 8051 with displays



Interfacing of 8051 with LED


forward voltage drop of LED is from 1.7 to 2.5
forward current of LED is 20mA

89C51(8051) comes under TTL logic families
TTL can sink up to 16mA and source 250uA
The 8051 port pin can sink 1.6mA (3.2mA for port 0) and source 60uA.
To drive significant current, we should arrange our circuits to use current sinking.

Design calculation

The resistor limits the current.
....etc

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Title: network attached storage
Page Link: network attached storage -
Posted By: computer science crazy
Created at: Tuesday 05th of January 2010 07:45:39 PM
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ABSTRACT
The incremental growth of the Internet for communications within and between companies has raised an important issue of where and how to store all the information being generated and to ensure it is safe and secure in the event of system crashes and other crises. As a result the need for an optimized storage solution becomes essential. Network Attached Storage (NAS) is becoming a critical technology in this environment. The benefit of NAS over the older technologies is that it separates servers and storage, result ....etc

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Title: advantages and disadvantages of object counter
Page Link: advantages and disadvantages of object counter -
Posted By:
Created at: Sunday 28th of August 2016 10:16:52 PM
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Advantages and disadvantage of digital object counter ....etc

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Title: Study the working decoder for conversion of BCD into 7segment display code
Page Link: Study the working decoder for conversion of BCD into 7segment display code -
Posted By: seminar class
Created at: Friday 13th of May 2011 07:11:02 PM
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Name– study of decoder using IC 7447/7448.
Aim – to study the working decoder for conversion of BCD into 7–segment display code.
Apparatus – IC 7447/7448, 7–segment common anode LED display, circuit board, power supply +5V DC, connecting wires, soldering iron, cutter etc.
Circuit diagram




Procedure –
1) You are given IC 7447/7448 and the 7–segment common anode LED display. Identify them with their proper pin conf ....etc

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Title: light controlled digital fan regulator pdf
Page Link: light controlled digital fan regulator pdf -
Posted By:
Created at: Sunday 10th of April 2016 04:06:14 AM
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I need a complete table content on light control digital fan regulator ....etc

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Title: downtime analyzer full report
Page Link: downtime analyzer full report -
Posted By: project topics
Created at: Thursday 01st of April 2010 09:19:22 PM
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ABSTRACT
This project is aimed at developing a Downtime Analyzer.Downtime ensures your production facility is operating at its peak efficiency by identifying where, how and why production delays are occurring. By reporting scheduled and unscheduled events, as well as under-performing equipment, this module enables a complete analysis of production downtime causes. This gives the information needed to prioritize maintenance, order new equipment and improve operating procedures. The automatic capture of downtime events by the module frees oper ....etc

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Title: MULITIPURPOSE ELECTONICS DEVICE CUM VISITOR COUNTING SYSTEM PROJECT
Page Link: MULITIPURPOSE ELECTONICS DEVICE CUM VISITOR COUNTING SYSTEM PROJECT -
Posted By: Zigbee
Created at: Wednesday 18th of August 2010 02:14:08 PM
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MULITIPURPOSE ELECTONICS DEVICE AND VISITOR COUNTING SYSTEM
Mini Project done by:
Bibin Mohanan
Basha KM
Ijas

S6 ECE, College Of Engineering Trivandrum






1.INTRODUCTION
With the growing need to conserve energy, more people are becoming conscious of energy consumption and are looking for ways to reduce costly waste associated with electricity.
Though most consumers do not think about lighting until the light bulb fails or
t ....etc

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Title: PRACTICAL TRAINING At Z-LED Light full report
Page Link: PRACTICAL TRAINING At Z-LED Light full report -
Posted By: project topics
Created at: Saturday 24th of April 2010 11:22:35 PM
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PRACTICAL TRAINING At Z-LED Light


Presented by:
Anirudh Vyas
SCHOOL OF ELECTRONICS & COMMUNICATION ENGINEERING
JODHPUR ENGINEERING COLLEGE AND RESEARCH CENTRE JODHPUR (RAJ.)
Rajasthan Technical University, Kota.


Light-Emitting Diode
Light-emitting diode
Red, green and blue LEDs of the 5mm type
Type
Passive, optoelectronic
Working principle Electroluminescence
Invented Nick Holonyak Jr. (1962)
Electronic symbol
Pin configuration Anode and Cathode
A light-emitting diode (LED) is an elect ....etc

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Title: TELEPHONE OPERATED CALLING SYSTEM full report
Page Link: TELEPHONE OPERATED CALLING SYSTEM full report -
Posted By: project report tiger
Created at: Thursday 04th of March 2010 05:43:51 PM
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TELEPHONE OPERATED CALLING SYSTEM

ABSTRACT
This Telephone Operated Calling circuit is used where persons have to be called or signaled. When you need to call a person amongst many standing outside a cabin, just lift the telephone handset off the cradle and press the respective number. The number of the person called will be displayed and a bell will sound to inform the person that it is his turn. This circuit is very useful for doctors for calling patients, in banks and in various other situations.


MINI PROJE ....etc

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Title: Interfacing of 8051 with displays
Page Link: Interfacing of 8051 with displays -
Posted By: seminar paper
Created at: Monday 12th of March 2012 04:53:25 PM
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Interfacing of 8051 with displays



Interfacing of 8051 with LED


forward voltage drop of LED is from 1.7 to 2.5
forward current of LED is 20mA

89C51(8051) comes under TTL logic families
TTL can sink up to 16mA and source 250uA
The 8051 port pin can sink 1.6mA (3.2mA for port 0) and source 60uA.
To drive significant current, we should arrange our circuits to use current sinking.

Design calculation

The resistor limits the current.
....etc

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