The fingerprint sensor can read different fingerprints and store in its own flash memory. The sensor
can perform three functions namely Add(Enroll) , Empty Database or Search Database and return
the ID of stored fingerprint.
Any of three functions can be called simply by making the pin low of the sensor or pressing onboard
three switches. The response is either error or ok which is indicated by onboard LED. The response
is also returned as single serial data byte. The return byte is a valid ID or error code. The response
byte is a single byte at 9600 bps thus making whole sensor very easy to use. We have provided
indicating LEDs and function switch already so its ready to use when you receive it. Just give power
and start using the sensor using onboard switches. Then you can move on making external
application using these functions.