hai. I kifli from Indonesia I connect the microcontroller with a fingerprint cama-sm20 datasheet Check connection to the microcontroller needs to send data to a fingerprint xx55 xx50 xx01 xx00 xx00 xxAA xx00 xx00 xx00 xx00 xx00 xx00 xx00 xx00 xx00 xx00 xx00 xx00 xx00 xx00 xx00 xx00 xx50 xx01. fi…

arduino with fingerprint

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