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【Chip introduction】: MAX30102 is an integrated module of heart rate monitor biosensor. It integrates a red LED with an infrared LED, a photoelectric detector, an optical device, and a low noise electronic circuit with ambient light suppression 【Applicable scenarios】: Apply to wearable device for heart rate and blood oxygen collection, worn on fingers, ear lobes, wrists and other places. 【Data transmission】: The standard I2C compatible communication interface can transmit the collected data to for Arduino, KL25Z,SSD1306 and other microcontrollers for heart rate and blood oxygen calculation 【Module off】: The chip can turn off the module by software, and the standby current is close to zero, so that the power supply can always maintain the power supply state.