1、With the function of self-learning. During the fingerprint identification process, the newly extracted fingerprint is successfully recognized and merged into the fingerprint database. So that the user can use it more effectively during use. 2、Can realize 360 degree automatic correction recognition function. Press the module at any angle, and the correct registered finger can be passed by comparison. 3、Has low false accept rate with the maximum of 0.001%, making the recognition safer and reliable. 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, offering you much convenience. 7、The fingerprint window adopts advanced waterproof technology, no worry about the influence of wet hands. 1 x Fingerprint Module Item Type: Optical fingerprint moduleCondition: Brand newMaterial: ABSMain Color: Black Model: A33Main Frequency: 120Mhz Flash Memory: 1M BitsSRAM: 128KB Fingerprint Collector: Optical acquisitionSize of Fingerprint Image: 640x480 (pixel), 500DPIRegistration 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%A33 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