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Title: Electronic Card Lock System full report
Page Link: Electronic Card Lock System full report -
Posted By: project topics
Created at: Friday 02nd of April 2010 02:06:41 AM
ppts of electronic number lock, ppt on electronics card lock system, electronic card lock for appliances pdf, electronic number lock ppt free download, electronic stethscope report, electronic bicycle lock abstract, pcb design circuit for electronic card lock system,
The circuit presented here can be-used as a lock for important elec¬tronic/electrical appliances. When card is inserted inside its mechanism, depending upon the position of punched hole on the card, a particular appliance would be switched on. The card is inserted just like a floppy disk inside the disk drive. This card should be rectangular in shape with only one punched hole on it. T7 o The circuit uses eight photo-transistors (T1 through T8). When there is no card in the lock, light from incan¬descent lamp L1 (40-watt, 230V) ....etc

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Title: electronic card lock system
Page Link: electronic card lock system -
Posted By: kiruba
Created at: Friday 14th of January 2011 04:27:23 PM
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I am Kiruba,doing my engineering course,and I am want to know about the circuit diagram details of Electronic Card Lock System and its explanation. ....etc

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Title: electronic card lock for appliances
Page Link: electronic card lock for appliances -
Posted By:
Created at: Friday 12th of October 2012 09:47:27 PM
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Title: Electronic Combination Lock using IC LS 7220
Page Link: Electronic Combination Lock using IC LS 7220 -
Posted By: computer girl
Created at: Thursday 07th of June 2012 02:35:10 PM
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Electronic Combination Lock using IC LS 7220



Electronic Combination Lock Circuit

Description
This is the circuit diagram of a simple electronic combination lock using IC LS 7220.This circuit can
be used to activate a relay for controlling (on & off) any device when a preset combination of 4 digits
are pressed.The circuit can be operated from 5V to 12V.
To set the combination connect the appropriate switches to pin 3,4,5 and 6 of the IC through the
header.As an example if S1 is connected to pin ....etc

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Title: ppt s electronic card lock system
Page Link: ppt s electronic card lock system -
Posted By:
Created at: Sunday 07th of October 2012 08:52:15 PM
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Title: electronic eye with security system using sms alert and automatic door lock facility
Page Link: electronic eye with security system using sms alert and automatic door lock facility -
Posted By:
Created at: Friday 04th of January 2013 04:51:44 PM
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looking for electronic eye with security system using sms alert and automatic door lock facility ....etc

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Title: electronic card lock for appliances
Page Link: electronic card lock for appliances -
Posted By:
Created at: Friday 12th of October 2012 09:53:41 PM
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Title: electronic lock system dessign
Page Link: electronic lock system dessign -
Posted By: seminar addict
Created at: Monday 09th of January 2012 03:16:35 PM
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An electronic lock is a device which has an electronic control assembly attached to it. They are provided with an access control system. This system allows the user to unlock the device with a password. The password is entered by making use of a keypad. The user can also set his password to ensure better protection. The major components include a keypad, LCD and the controller AT89C51 which belongs to the 8051 series of microcontrollers. This article describes the making of an electronic code lock using the 8051 microcontrol ....etc

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Title: ELECTRONIC CODE LOCK
Page Link: ELECTRONIC CODE LOCK -
Posted By: computer science crazy
Created at: Thursday 17th of September 2009 04:24:28 AM
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ELECTRONIC CODE LOCK

The aim of this project is to interface 4x16 LCD, 4x4 Matrix Keypad, Motor and Power Supply with 8051 Microcontroller and provide a simple low-cost electronically operationlised door.

A keyless electronic combination lock is adaptable for placement on a door, and operates independently of any other locks and without a central control system. The lock has an 8051 Microcontroller, 4x4 matrix keypad for entering combinations, motor to move the door, 4x16 LCD to display the process of Electronic Code Lock. ....etc

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Title: Electronic code lock using 8051 Microcontroller
Page Link: Electronic code lock using 8051 Microcontroller -
Posted By: seminar class
Created at: Monday 04th of April 2011 07:23:33 PM
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Electronic code lock using 8051 Microcontroller
An Electronic Code Lock is a device which has an electronic control assembly attached to it. They are provided with an access control system. This system allows the user to unlock the device with a password. The password is entered by making use of a keypad. The user can also set his password to ensure better protection. The major components include a keypad, LCD and the controller AT89C51 which belongs to the 8051 series of microcontrollers. This article describes the making of an electro ....etc

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