DY50 Fingerprint Reader Sensor Module Optical Sensor with Serial Communication for Arduino Locks A compact optical fingerprint sensor module designed for integration with Arduino and other microcontroller projects using a serial communication interface. The DY50 simplifies biometric access control by providing a reliable way to enroll, store, and verify fingerprints in embedded systems. Key benefits Secure access control: Replaces keys and passcodes with biometric identification for doors, cabinets, and devices. Easy integration: Uses standard serial communication for straightforward connection to Arduino and compatible microcontrollers. Compact and durable: Small module size fits into enclosures and retrofit projects while the build withstands everyday use. Practical for embedded projects: Lowprofile module suitable for lock mechanisms, control panels, and custom electronics. What it does Optical fingerprint sensing for capture of fingerprint patterns. Communicates over a serial interface to send and receive commands and data. Designed to be used in lock and access control applications driven by Arduinobased controllers. Compatibility and interface Intended for use with Arduino and other microcontrollers that support UART style serial communication. Works with standard serial wiring and common microcontroller I/O voltage levels; check device wiring requirements before connecting. Physical and performance notes Optical sensor technology provides consistent fingerprint capture across a range of users. Compact footprint allows installation in confined spaces and retrofit enclosures. Built for repeated daily use in access control applications. Typical applications Arduinobased electronic door lock: Enroll authorized users and unlock a door with a verified fingerprint. Secure storage cabinet or drawer: mechanical locks with biometric access using a microcontroller controller. Project prototypes and teaching labs: Add biometric authentication to student projects, demos, and prototypes. Why choose this module Straightforward serial interface and compact form factor make the DY50 suitable for developers and hobbyists building biometric access into embedded systems. It provides a practical way to add fingerprint identification to Arduino lock projects without complex hardware changes.