... board Electronic, didgi biometric sensor readers,Module, optics fingerprintFingerprint Module,fingerprint lock password lock Control panels circuit ... search methods, namely, 1: N mode), the module is given match results (pass or fail) 1Vinred2TDgreen3RDwhite4GNDblackSoftware ... handshake, received response packet, affirming that the module normally. 2: Fingerprint login enroll fingerprint login ...