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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: 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 digital combination lock mini project using ic 4017
Page Link: electronic digital combination lock mini project using ic 4017 -
Posted By:
Created at: Sunday 28th of October 2012 10:07:59 PM
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Title: block diagram of electronic code lock with user defined password using 8051 microcontroller at89c51
Page Link: block diagram of electronic code lock with user defined password using 8051 microcontroller at89c51 -
Posted By:
Created at: Saturday 29th of December 2012 10:05:45 PM
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yes we want urgently the block diagram for project hope you will fulfill our requirements early as possible thank you ....etc

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Title: simple electronic code lock using ic 4017
Page Link: simple electronic code lock using ic 4017 -
Posted By:
Created at: Tuesday 04th of December 2012 04:50:32 PM
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Title: pic16f628a clock projects
Page Link: pic16f628a clock projects -
Posted By:
Created at: Friday 28th of December 2012 07:38:18 AM
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dear sir,
good day, i am a new hobbyist of microcontroller pic 16f628a , sir can you
send me a sample clock project ? coz i want to have that project , if you send me i order for the every student for their project.
hope for your kind consideration !
thank you !






respectfully yours ,
[email protected]
....etc

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Title: e secure transaction secure electronic data interchange over inter
Page Link: e secure transaction secure electronic data interchange over inter -
Posted By: dhanalakshmii.ch
Created at: Friday 01st of July 2011 01:52:49 PM
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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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Title: Combination Lock with LCD and Keypad using pic16f628A
Page Link: Combination Lock with LCD and Keypad using pic16f628A -
Posted By: seminar surveyer
Created at: Thursday 13th of January 2011 04:03:42 PM
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Combination Lock with LCD and Keypad using pic16f628A:

A Brief Description:

This project is written in C language. The basic user lock is of 2 Digits.
The input is taken from a 4x3 Keypad (please see the schematic for more information) and Display the user input on a 2x16 LCD. A pin is assigned as output for activating and deactivating the lock. For demonstration I have connected an LED to that pin.


How combination lock works:

1. Turn switch on (5V DC voltage power supply)
2. ....etc

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Title: pic16f628a projects and lcd
Page Link: pic16f628a projects and lcd -
Posted By:
Created at: Tuesday 14th of May 2013 06:34:31 PM
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how do i display different messages on 16x2 lcd using pic16f628a
if button porta rao is pressed then lcd out = hellow
porta ra2 is pressed lcd out = world
any help will be app.
thanks
ivan ....etc

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