Interfacing Fingerprint Sensor R307 with evive - Enrolling Fingerprints

Introduction

The Fingerprint is one of the safest ways to detect and identify the Authorized person, We know that fingerprint is unique even identical twins do not have identical fingerprints. By using this we can make pretty sure about security needs. To add fingerprint verification in evive projects we can use this all in one optical fingerprint sensor-scanner (R307), It makes fingerprint detection and verification super simple.

The fingerprint identification process has two steps that are

1. Enrolling Fingerprint.
2. Matching Fingerprint.

In this tutorial, we are going to know how to enroll fingerprint.

Circuit Diagram

Code

In the given below program we are doing two things:

1. Enrolling the input finger: Basically, it captures two images and converts it into a uint8 array matrix. In fingerprint matching, it checks the degree of closeness to mean value of captured images. To select the ID in which you want to save we are going to use potentiometer 1 of evive which is connected to A9 pin of evive and then press tactile switch 2 connected to D39  pin.
2. Displaying every process in evive TFT screen.

Output