About Password control door lock system using microcontroller 89c51

[Ganesh]

as mentioned above sub the project code which is provied you is auto running. thats means without provided any key of keypad program is contiune

 

so give me new code else suggest me

[AJISH ALFRED]

Hi Ganesh,

Could you please make the query more clear? What you mean by “auto running” code?

[Ganesh]

Auto running means

 

in this project without entering password through keypad programming is contiune till end

 

thats means LCD dispaly show enter password then micrcontroller automatic enter 4 digit pass without any key pressd later LCD show confirm it will auto confirm and so on til end

here not having any human interface key to pressed.

 

and if u have assembly program so plz send me at  [email protected]

 

[Haizad]

Having the same problem here. How you fix it?

[SHAH DISHANT H.]

Hi,

 

Post the code please…

 

If you have connected  keypad on port 0, you must connect PULL-UP Resistor with port.

 

 

[Jaymin D]

Hello Ganesh,

 

If you have still problem in password based project then send me the diagram which one you…

 

May be some solution come out..

 

Also If you want to buy completely ready made project of ” password based door lock ” using,

 

80C2051, LCD, keypad (4×3), LCD for door open and close indication -> prize – 1400 Rs

 

and

 

AT89S52, LCD, keypad (as give on this website with code and diagram) -> prize – 1550 Rs

 

But first send me diagram which one you use for your project..so I can get idea form it.

 

Best luck

 

Regards

 

Jaymin D

[Haizad]

Dear Shah,

 

I try to send the code but my post was flagged as spam. Can you give me your email? I’ll email you the coding. Do I need to connect all the pin of  P0 to pull up resistor bofore connecting it to the keypad pins?

 

[Lavanya]

seminar

[Author]

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