Pulse signal pickup processing (original)

Working principle: The circuit is characterized by simple and practical principle, through the use of special infrared emission tube and infrared receiving tube.

Place the finger in the middle of the transmitting and receiving tubes to achieve the pulse signal acquisition, directly output the digital quantity, you can directly

Communication with the single-chip microcomputer greatly simplifies the complexity of the circuit and can be used for medical measurement of the pulse of the human body.

solution.

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