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digital code lock with lcd and keypad
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electronicfreak
Thu May 22 2008, 02:22PM
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sorry sir ,
actually i m working on digital key lock project.
i thought that i will get data displayed on LCD to compare password stored in EEPROM..
can u send me the C code of this project & circuit diagram....


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http://belgaum.myminicity.com/
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Ajay
Thu May 22 2008, 03:53PM
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password stored in eeprom?
i did not make that project yet. but when i make it.. i will surely upload it.

right now i have only the simple code lock project
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migs
Tue Jun 10 2008, 07:38AM
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thanks for having this prototype posted here.. i just want to ask something.. are the two capacitors near the crystal oscillator 33uF or 33pF??.. if those are 33pF, then there is no available electrolytic capacitor with such rating.. the schematic symbol of those two represents an electrolytic one, as can be seen in the schematic diagram.. are those capacitors electrolytic or ceramic?? thanks again!
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Ajay
Tue Jun 10 2008, 05:58PM
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migs, sorry if my schematic makes you think that way.
Those are 33pF ceramic capacitors. If they are not available then you can try looking for 22pF. I will recheck the schematic and make the changes if needed.
Thanks!
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8051 Microcontroller Projects 8051 AVR tutorials PIC microcontroller, 8051 assembly language programming electronics and communication ECE CSE pdf ebooks library BE final year project ideas Embedded systems