Specification Brand : DUTTY BulletPoint1 : 【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 BulletPoint2 : 【Applicable scenarios】: Apply to wearable device for heart rate and blood oxygen collection, worn on fingers, ear lobes, wrists and other places. BulletPoint3 : 【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 BulletPoint4 : 【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. BulletPoint5 : High-quality manufacturing: the product is made from high-quality materials, which has good durability and stability, and can run stably for a long time to the accuracy and reliability of the sensors. Color : As Pictures Shown ConnectorType : Quick Connect ExternallyAssignedProductIdentifier : 7629324750830 ExternallyAssignedProductIdentifier1 : 0784548487966 ExternallyAssignedProductIdentifier2 : 784548487966 IncludedComponents : MAX30102 Heart-Rate Sensor Module ItemName : MAX30102 Blood Oxygen Wrist Heart Rate and Pulse Detection Heartbeat Sensor Module Compatible with UNO R3 STM32 2pcs ItemPackageDimensions_Height : 1 centimeters ItemPackageDimensions_Length : 10 centimeters ItemPackageDimensions_Width : 8 centimeters ItemTypeKeyword : sensor-blocks Manufacturer : DUTTY Material : PCB NumberOfContacts : 1 NumberOfItems : 1 NumberOfLevels : 1 OperatingVoltage : 1.8 volts PartNumber : D-001 ProductDescription : Specifications: VIN: Main power input, 1.8V-2.5V 3-bit pad: I2C bus pull up level, you can choose 1.8V or 3.3V according to the pin master voltage. SCL: I2C bus clock SDA: connected to the I2C bus data INT: MAX chip interrupt pin RD: MAX30102 chip's RD LED grounding terminal, generally doesn't need to connect IRD: MAX30102 chip's IR LED grounding terminal, generally doesn't need to connect GND: grounding wire Package Included: 2 x MAX30102 Heart-Rate Sensor Module