The product consists of hardware and software such as optical fingerprint sensor, high-speed processor, high-performance fingerprint comparison algorithm, and ultra-large capacity FLASH chip The fingerprint module has stable performance and perfect functions, and has multiple functions such as fingerprint collection, fingerprint registration, fingerprint comparison, and fingerprint search. The usage is very simple: as long as there is a serial microcontroller and embedded can operate this module, MSP430, 51, AVR, PIC, STM32, ARM, FPGA,for controller, etc. can operate this module. This module is controlled through the serial port, you can also use the serial port of the computer to control this module. The fingerprint module is widely used, suitable for all fingerprint recognition systems from high-end to low-end. such as:Fingerprint door lock, safe, box, finance and other security fields;Access control system, industrial computer, POS machine, driving training, attendance and other identity fields;Private clubs, management software, licensing and other management areas;Financial fields such as insurance collection, pension collection, fingerprint payment, etc. Specifications: Power supply voltage: DC 3.8 ~ 7.0V Backlight color: red Lighting : long light / blink Supply current: working current: less than 60mA current: less than 85mA Fingerprint image entry time: less than 0.5 seconds Window area: 15 x 17mm Matching : comparison (1: 1) Search (1: N) Feature file: 384 bytes Template file: 786 bytes Storage capacity: 240 Security level: Level 3 (from low to high: 1, 2, 3, 4, 5) False recognition rate (FAR): less than 0.001% (when the security level is 3) Rejection rate (FRR): less than 1.0% (when the security level is 3) Search time: less than 220 ms (1: 240 hours, average) Host computer interface: UART (TTL logic level) Communication baud rate (UART): (9600 x N) where N = 1 ~ 12 (default value N = 6, which is 57600bps) Working environment: temperature: -30 Celsius to + 70 Celsius Relative humidity: 40% RH to 85% RH (no condensation) Storage environment: Temperature: -40 Celsius to + 85 Celsius Relative humidity: less than 85% H (no condensation) colour: black Material: plastic size: 44 * 20 * 17mm Package Contents: 1 * Fingerprint module 1 * Cable Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.