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ZA620_M5 Optical Fingerprint reader Sensor Module sensors All-in-one For Arduino micro:bit Description Supply voltage: 3.3V SupplyingSupply Current: Current: <120mAPeak current: <140mAFingerprint image time: <1.0 secondsWindow size: 14 ╳ 18 mmMatching mode: Match mode (1:1)Search mode (1: N)Signature File: 256 bytesTemplate files: 512 bytesStorage capacity: 1,000Safety level: five (from low to high: 1,2,3,4,5)False Accept Rate (FAR): <0.001% (security level 3)False Reject Rate (FRR): <1.0% (security level 3)Search time: <1.0 seconds (1:500, the mean)PC Interface: UART (TTL logic level) or USB2.0 / USB1.1Communication baud rate (UART): (9600 ╳ N) bps where N = 1 ~ 12 (default value N = 6, ie 57600bps)Working environment:Temperature: -20 ℃ - 50 ℃Relative Humidity: 40% RH-85% RH (non-condensing)Storage environment:Temperature: -40 ℃ - 85 ℃Relative humidity: <85% H (non-condensing)Dimensions (L ╳ W ╳ H):Split: Fingerprint sensor: 56 ╳ 20 ╳ 21.5mm-One: 56 ╳ 20 ╳ 21.5mm Hardware connection:Module via a serial communication interface, directly with 3.3V or 5V power microcontroller communication: Module data transmission feet (2Foot TD) connected to the data bit machine receiving end (RXD), data receiver module feet (3 feet RD) connected to the data sender bit machine (TXD).For the RS-232 level (for example: PC machine) for PC communication, increase the level conversion between the module and the host computerCircuitry (e.g.: MAX232 circuit) Data Sheet