Practical electronics construction of the biometric fingerprint access system, 12v safe system DIY.

Imagine the uses!

Circuit diagram included. No prior knowledge of electronic needed, component layout is clearly illustrated.

When a finger is placed on the reader a digital analysis are done by the fingerprint sensor and those are then compared to the samples stored in the memory. If the finger print was stored in the memory, it is matched to the scanned image and output action is carried out - either the relay is closed for preset time 2 or 8 seconds (regime use for electromagnetic door locks or alarm control ) or the relay is alternatively opened and closed (first finger touch opened, second finger touch closed) This regime is possible to use for any appliance or central office.

The kit is easy to use, because the basic module of the reader and the finger print sensor are already assembled.

Ordinary use:

Place finger on the sensor area and hold it there for about 1 second. Print is digitalis ed and memory is being searched. If a match is found the output action is carried out according to the set up.


Relay function:
The relay can work in two regimes.

1. ON/OFF (first touch on, another touch off )

2. Pulse ( 2 or 8 sec. )