[Moved] Project on password controlled device

Ogu Reginald · Dec 15, 2012

I am not familiar with AT89S52 microcontroller, but there is a demand for me to build a project using the above microcontroller to enable a device to be controlled by a four digit password and also the status of the project should be displayed on an LCD. Please friend help me with the circuit diagram and source code for the project, I am grateful.

pavans2510 · Dec 16, 2012

Re: Project on password controlled device

HI,
Its quite simple, Below link will help you out wrt interfacing with the LCD. In the below link 11 i/o pins are used for LCD(but 6 i/o pins is more than sufficient).
http://eeemagazine.blogspot.in/2010/10/coming-soonbasic-microcontroller.html
Now interfacing with a keypad check the below link.
http://shree-electronics.com/interfacingkeyboard.html

Just synchronizing both the functions will complete your project.

All the best

[Moved] Project on password controlled device

Ogu Reginald

Full Member level 6

pavans2510

Member level 2

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[Moved] Project on password controlled device

Ogu Reginald

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pavans2510

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