1、With the self-learning function. During the fingerprint identification process, the newly extracted fingerprint is successfully recognized and merged into the fingerprint database, which is convenient and effective for users to use. 2、Low false accept rate with the maximum of 0.001%, makes the recognition safer and reliable. 3、Can achieve 360 degree automatic correction recognition function. Press the module at any angle, and the correct registered finger can be passed by comparison. 4、Support for Android platform secondary development, and support for windows all series. 5、This USB model design is convenient for you to charge and use. 6、Supports up to 1000 fingerprint users, which offer you much convenience. 7、The fingerprint window uses advanced waterproof technology, without the worry that it may be influenced by water. 1 x Fingerprint Module Item Type: Optical fingerprint moduleCondition: Brand newMaterial: ABSMain Color: Black Model: A32Main frequency: 120MhzFlash Memory: 1M Bits SRAM: 128KB Fingerprint Collector: Optical acquisitionSize of Fingerprint Image: 640x480 (pixel), 508DPIRegistration Capacity of Fingerprint: Defaults to 1000 pcsFalse Accept Rate(FAR): < 0.001%False Rejection Rate(FRR): < 0.001%Comparison Method: 1:N and 1:1 comparisonSize of Fingerprint Template: 570 byteSetting of Security Level: Level 1 to level 5 can be setFactory Setting Value: Level 3Communication Interface: UART, 3.3V-TTL level or USB communicationSerial Communication:No Parity=NONE, 1 Stop Bit=1Baud Rate: 9600, 19200, 38400, 57600, 115200 (bps)Factory Setting: 115200bpsWorking Voltage: DC 3.3V±10%A32 Pin Function:RST: Reset the module, active lowVIN: Fingerprint module main power, default 3.3VGND: Power groundRX: Module receives data pinsTX: Module sends data pin+ 3.3V: Finger detection function circuit power supplyWakeup: Finger detection function output pin, output high level when a finger is pressed