Save Fingerprint sensor data to database ?

i try to connect my Fingerprint sensor to UNO ,
but my sensor limit fingerprint to 20 finger !!!
so how can i increase it , i think about to save my data ( Fingerprint and ID ) in database ?
is it ok ?

please help me :slight_smile:

Does the sensor also give you a match output?
Unless you can get at the raw data of the fingerprint then there is nothing yo can do. Even if you can the algorithms to do the match against your data base are quiet complex, it is not just a matter of testing things to see if they are equal.

Can you please help about how you connected it to the uno board.
I have a Gt511C3 and i am facing problem, even not able to connect it to the board.

Followed many forums still cannot connect. Error as cannot open device