Follow the next instructions to install the library: The easiest way to control the fingerprint sensor module with the Arduino is by using the Adafruit library for this sensor. Installing the Adafruit Fingerprint Sensor Library The following table shows how to wire the sensor to the Arduino. The sensor has six pins that are labeled in the figure below.
Here’s the specifications of the fingerprint sensor module we’re using (you should check your sensor datasheet or the specifications provided by your supplier – they shouldn’t be much different than these):
The fingerprint sensor modules featured on Maker Advisor should be compatible with this guide. We recommend checking the Fingerprint sensor module on Maker Advisor that compares the price in different stores. Prices for this sensor greatly vary from $10 to $50. These modules can be added to security systems, door locks, time attendance systems, and much more.
These modules come with FLASH memory to store the fingerprints and work with any microcontroller or system with TTL serial.