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fingerprint based lock

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krishnapriya431

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hello sir,

we are doing finger print based lock , we want assembly program for led display, such that we can proceed to locking system by using stepper motor. so please send me the program,and suggestions about the project.

thank you
 

You want code only for LED display............. The rest you will code. By the way first tell which controller you are using and later tell is it LED or LCD.

That is supposed to be the simplest part of your project, If you can do finger print coding you may easily do it for LCD/LED.
 

sorry , we are using AT89S52 microcontroller. plz send me the assembly program for led display
 

Still not clear with your requirement....................:(

LCD or LED (diode or 7 segment LED). how should it work ON /OFF or at what interval or on for what input it should give you output, and what kind of output. Why specific about assembly, why not C
 

sir, actually we want the assembly program to on/off the led(light emitting diode).time interval should not be small. so we have to dump into the circuit.
we are from electronics department.so,obviously we are interested to write the program in assembly.chip: at89s52
 

You did not understand my question yet.
I want to know under what condition the LED will blink. For how time.
Will LED glow on detecting a correct finger print or on wrong finger print.
what are all the design consideration for LED to toggle.

E&C studetns always prefer C program as it is easy to write and face viva in exam.

programming language is your choice.
 

depending on the time delay. led will glow on detecting the wrong fingerprint.we will replace the led by buzzer . when the wrong person finger print is taken the buzzer should make a sound. actually we are using kiel software so, we prefer assembly program for led blinking.
 

How are you going to interpret that finger print matches or not. you can write a interrupt to verify it. like serial interrupt. from serial window type a wrong character and check the character in program. if character types is not equal to stored character then toggle the port. if it is same then print text

---------- Post added at 22:14 ---------- Previous post was at 22:13 ----------

you can write program in C in keil also. intelligent engineers prefer C programming over asm.
 

yeah i'm wondering how he intends to program the fingerprint part if he can't do the LED thing.
 

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