R305 Optical Fingerprint Reader Sensor Module

R305 Fingerprint Identification module defined as TTL UART interface that offers direct connections to microcontroller UART or to PC through MAX232 / USB-Serial adapter. This sensor stores the user’s fingerprint data and configures it in 1:1 or 1: N mode for identifying the person. This module operates in a wide range of applications such as building electric safes, home automation projects, attendance related projects, etc

Fingerprint module processing consists of two parts; Fingerprint Enrollment and Fingerprint Matching (the matching can be 1:1 or 1:N). During the enrolling process, the user needs to enter the fingerprint two times. And the system will process finger images twice. Thus generates a template of the finger based on processing results and thus store the template. During matching, the user enters the finger through an optical sensor and the system will generate a template of the finger. This template is compared with the template in the finger library. For 1:1 matching, the live finger is compared with a specific template designated in the Module. Whereas for 1:N matching, the system will search the whole finger library for the matching finger.

In both cases, the system returns the matching result, whether success or failure. We can also enrol new fingers directly up to 162 fingerprints can be stored in the onboard FLASH memory. The red LED in the lens lights up during a photo indicating that it’s working. This module also features good image processing capabilities that can successfully capture an image up to a resolution of 500 dpi. Also, Low power consumption, low cost, small size, and excellent performance make it ideal for wide applications.