Fingerprint recognition circuit help

[engineerj2010]

Fingerprint recognition circuit help!

Hi Guys,

I am building a fingerprint security system, but i am having trouble identifying every component.

I would really appreciate your help. And also if you could talk me through how the circuit works...but more importantly, will it work??

Thanks

 

[berkeman]

Hi Guys,

I am building a fingerprint security system, but i am having trouble identifying every component.

I would really appreciate your help. And also if you could talk me through how the circuit works...but more importantly, will it work??

Thanks

Where did you get the schematic from? What's an SM630? What is the code running in the uC?

Tell us about the circuit yourself first please...

 

[engineerj2010]

i found the circuit...

http://www.8051projects.info/proj.asp?ID=76

i have attached a copy of the source code.

The SM630 is a fingerprint module with the ability to store fingerprints inside its built in memory.

My understanding is that the user presses the add button and scans the finger, once this is done the verify button should be presses with the finger on the module. If the fingerprint is recognised, the relay will work, hence opening an electric lock.

If it is not recognised the relay will fail and the buzzer will sound. The LCD screen will show either access allowed or denied.

Thankyou.