Fingerprint sensor

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hello,

i bought this fingerprint sensor. has as608 qccf tr6w18 chip on it, , uses 6 wires connect arduino. connected 4 (tx, rx, 3v3 , gnd) , it's working adafruit library, question last 2 wires labelled u+ , u-.

thank you

biometric applications in many fields, khóa cửa thông minh kingbel


Arduino Forum > Using Arduino > Sensors > Fingerprint sensor


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