Discussions > Texas Instruments Platforms

Finger print scanner

Prabhuraj Tavag - August 16, 2011

I have to work on finger print scanner(Suprema umf3040). Can any one tell
me the compatible finger print SDK for this and also any useful links about
interfacing finger print scanner with ARM9 samsung s3c2440?

Thanks,
Prabhuraj

Comments

Finger print scanner

Submitted by wmat on August 16, 2011 - 9:25am.

Hi Prabhuraj,

There is no specific SDK for any Samsung s3c2440 based development board on Meld.org at present. Which board do you have?

I assume you're referring to this finger print reader: http://www.supremainc.com/eng/product/em_11_n-05.php

This would appear to be a serial interface device and may be supported by Linux currently.

Hi Prabhuraj,

Submitted by kaaching on August 18, 2011 - 1:56am.

I've seen two types of finger print sensors:

* the real scanners - where the PC is supposed to do the matching work
* the scanners that do the pattern matching themselves and only signal a "yes" or "no"

This scanner appears to be from the latter category.

If I'd design the scanner, I'd make sure that the scanner authenticates with the host first and only sends an obfuscated "yes" - just to make it harder to bypass the wiring...

For Linux, hooking up such scanner is trivial: it will just work as it has a serial protocol.

The hard part is in setting up the connection with the device, which is probably not something the kernel should be doing... Your application will have to do the work! That will require an SDK from Suprema.