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Need Help With project involving microcontroller, fingerprint scanner and gsm module

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abhilash64

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i am new to this forum and this is my first post.
i want to build this project. here is what is want to achieve:

1) there will be a sensor, when it is activated it will send a signal to the microcontroller and then the microcontroller will start a timer for 10 seconds.

2) a fingerprint scanner will also be present and if it does not detect a valid finger print within these 10 seconds, a signal will be sent to the microcontroller, which in turn will send an sms using a gsm module indicating unauthorized access. and then the microcontroller will turn off a relay( the relay can be connected to anything...say to turn off a bulb)

3) the relay can then be again turned ON only by a valid finger print scan or a sms by the owner.

i need a detailed help for this project.
i hope i will get all the help that i would need.
 


In executing this type of project, I believe the first step would be to break the project into modules (segments), then try to implement them segment by segment. Draw out the algorithm for each segment.

abhilash64 said:
i am new to this forum and this is my first post.
i want to build this project. here is what is want to achieve:

1) there will be a sensor, when it is activated it will send a signal to the microcontroller and then the microcontroller will start a timer for 10 seconds.

2) a fingerprint scanner will also be present and if it does not detect a valid finger print within these 10 seconds, a signal will be sent to the microcontroller, which in turn will send an sms using a gsm module indicating unauthorized access. and then the microcontroller will turn off a relay( the relay can be connected to anything...say to turn off a bulb)

3) the relay can then be again turned ON only by a valid finger print scan or a sms by the owner.

i need a detailed help for this project.
i hope i will get all the help that i would need.
Click to expand...
 
ok.. kandy is right>>> u need to break your whole projects in modules ,
suppose first of all try to interface finger print module and check its working ,
then you are supposed to interface gsm module and t6ry to send sms (suppose you press a switch which is connected to microcontroller and it sends particular msg)
>> then move on to sensor, connect it with micrcontroller and try to get output (from its port pin if a key is pressed within 10 seconds) ..
Actually it is a big project you can do it in one go but it all will mess up and will result in chaos :twisted:. You need to do some work on each module individually then combine them .. :cool:
 
thank you...will try to break it into modules....and one more thing ...to add a finger print...i want only an authorized person to do it...how do i achieve this ?
 

When you will work on finger print module you will get your answer. . buy a finger print module and google it. . there are many projects related to finger print module. . you can add more then one finger print!!!

Good Luck :)
 

i have bought a R303A finger print module....how do i interface it with microcontroller... i have never worked with any finger print reader before....so i need some detailed help....
 

There appears to be two interface options available with the R303A, USB and TTL asynchronous serial.

If you unit has only a USB interface you have a problem.

Otherwise according to the R303A User Manual:

Hardware connection

Via serial interface, the Module may communicate with MCU of 3.3V or 5V power: TD (pin 2 of
P1) connects with RXD (receiving pin of MCU), RD (pin 3 of P1) connects with TXD (transferring
pin of MCU). Should the upper computer (PC) be in RS-232 mode, please add level converting
circuit, like MAX232, between the Module and PC.

Serial communication protocol

The mode is semiduplex asychronism serial communication. And the default baud rate is 57600bps.
User may set the baud rate in 9600～115200bps。
Transferring frame format is 10 bit: the low-level starting bit, 8-bit data with the LSB first, and an
ending bit. There is no check bit.
Reset
Click to expand...

Do you have a copy of the User Manual?

**broken link removed**

Hope the info helps,

BigDog
 
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my module has only serial comm port. along with it i hav got a software to store finger prints....but can i use the microcontroller to store new fingerprints instead of the software ???
 

Most likely.

However you will need sufficient storage. You may have to implement a MMC/SC card interface for storage.

What microcontroller (MCU) are you using for the design?

BigDog
 
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the r303a already has its own memory to store fingerprints....but i have got a software along with it to store the finger prints...but i want to program the microcontroller to add new fingerprints or delete a finger print....
 

I took another look at the user manual.

You'll need to implement serial interface and a series of routines which transmit the required commands to the scanner to effectively delete, add, etc.

Do you want a LCD display for a user interface or handle everything via SMS?

BigDog
 

abhilash64 said:
the r303a already has its own memory to store fingerprints....but i have got a software along with it to store the finger prints...but i want to program the microcontroller to add new fingerprints or delete a finger print....
Click to expand...

What are the features you are looking for..
you may get direct help from graylogix they are selling R303A at cheapest price in bangalore
 

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