MakerFocus HeartRate Sensor Module MAX30102 Blood Oxygen Sensor Compatible with Arduino STM32

Heart-Rate Sensor Module, MAX30102 Blood Oxygen Sensor, Compatible with Arduino STM32 Parameters: LED peak wavelength: 660nm/880nm LED power supply voltage: 3.3~5v Detection Signal Type: Optical Reflection Signal (PPG) Output Signal Interface: I2C Interface Communication Interface Voltage: 1.8 ~ 5V Interface: 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 Including: 1 * High-Sensitivity Heart-Rate Sensor Module