DY50 Optical Fingerprint Reader Sensor Module for Locks Compact, reliable fingerprint module designed for secure access and embedded systems. The module provides fast fingerprint capture and matching, simple serial or USB integration, and support for up to 300 stored templates. Key benefits Fast enrollment and verification: fingerprint capture time less than 1.0 seconds and average 1 to N search time less than 1.0 seconds for a 1 to 500 database. Easy integration: supports UART TTL serial communication or USB 2.0 / USB 1.1 for direct connection to microcontrollers or PCs. Low power and compact size: operates from DC 3.6 to 6.0 V with supply current under 120 mA and compact module dimensions for tight installations. Practical storage and security: stores up to 300 templates, with template file size 512 bytes and signature file size 256 bytes. Configurable security levels up to level five; typical false accept and reject performance reported for security level three. Clear interfacing guidance: TTLlevel serial lines compatible with common 3.3 V and 5 V microcontrollers; RS232 host connection requires a standard level converter. Technical highlights Model: DY50 optical fingerprint reader sensor module Supply voltage: DC 3.6 to 6.0 V Supply current: typically less than 120 mA, peak less than 140 mA Fingerprint capture time: less than 1.0 seconds Optical window size: 14 x 18 mm Matching modes: 1 to 1 and 1 to N Signature file size: 256 bytes; template file size: 512 bytes Storage capacity: 300 templates Security levels: up to level five (levels listed from low to : 1, 2, 3, 4, 5) False Accept Rate: less than 0.001 percent at security level 3 False Reject Rate: less than 1.0 percent at security level 3 Search performance: mean search time less than 1.0 seconds for a 1 to 500 match PC interface: UART TTL logic level or USB 2.0 / USB 1.1 UART baud rate: 9600 times N bits per second, where N equals 1 through 12; default N is 6, equivalent to 57600 bps Operating environment: temperature 20 C to +50 C, relative humidity 40 percent RH to 85 percent RH noncondensing Storage environment: temperature 40 C to +85 C, relative humidity less than 85 percent RH noncondensing Module dimensions: 56 x 20 x 21.5 mm Hardware connection notes Serial interface: module TX should connect to host RX, and module RX should connect to host TX. Data lines operate at TTL logic levels and are compatible with typical 3.3 V and 5 V microcontrollers. For PC connections using RS232 levels, include a standard TTL to RS232 level converter between the module and the host. Included in package 1 x optical fingerprint reader sensor module for locks (DY50) Typical applications Electronic door locks and cabinet access control where compact size and fast verification are required. Time and attendance or employee access systems that need local template storage and quick 1 to N searches. Embedded security and automation projects that require a serial or USB fingerprint interface for user authentication. This DY50 module is intended for developers and integrators needing a compact optical fingerprint sensor with straightforward serial or USB connectivity, low power consumption, and configurable security performance.