Apart from this, we will interface the R502/R503 Capacitive Fingerprint Sensor with Arduino using the Adafruit Library and then learn the method to enroll and test fingerprints. In this post, we will go through the details and specifications of the R502/R503 Capacitive Fingerprint Sensor & learn how the Capacitive Fingerprint Sensor works. Instead of the optical method, it uses a camera image processing method to detect fingerprints. We also used advanced fingerprint sensor like GT511C3 which has high accuracy and faster response time. There are many fingerprint sensors available in the market and we used R305/R307 Optical fingerprint sensors in some earlier projects like Attendance System and Biometric Security System. It is generally used to give access control to users or to determine their presence. Fingerprint sensor module captures, stores, and matches the user’s fingerprint. In this tutorial we will learn about Interfacing R502/R503 Capacitive Fingerprint Sensor with Arduino.
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