MAX30102 Heart Rate Sensor Module Puls Detection Blood Oxygen Sensor

MAX30102 Heart Rate Sensor Module Pulse Detection Blood Oxygen Sensor Concentration Test Module for arduino STM32

Description:

The MAX30102 is an integrated pulse oximeter and heart rate monitor biosensor module. It integrates a red LED and an infrared LED, a photodetector, an optical device and low-noise electronic circuits with ambient light suppression. The MAX30102 uses an 18V power supply and a separate 50V power supply for the internal LEDs. Wear the device for heart rate and blood oxygen collection, and wear it on your fingers, earlobe and wrist. The standard I2C compatible communication interface can transfer the collected values ​​to Arduino, KL25Z and other microcontrollers for calculating heart rate and blood oxygen. In addition, the chip can also shut down the module through software, the sleep current is close to zero, and the power supply is always maintained. Due to its excellent performance, the chip is widely used in Samsung Galaxy S mobile phones. The chip integrates a glass cover to effectively eliminate external and internal light interference and provides the best reliable performance.

Setting:

Maximum LED wavelength: 660nm/880nm

LED supply voltage: 3.3-5V

Detection signal type: light reflection signal (PPG)

Output signal interface: I2C interface

Communication interface voltage: 18-3.3V-5V (optional)

Board reserved assembly hole size: 0.5 x 8.5mm

Working principle: Light dissolution method: measuring pulse rate and blood oxygen saturation using human tissue to cause different light transmission when the blood vessel beats; Light source: a wavelength-specific polar illumination tube, selective for oxyhemoglobin (HbO2) and hemoglobin (Hb) in arterial blood; The transmission is converted into an electrical signal: the volume of the arterial pulsation is changed into luminous transmission of light. At that time, the light is reflected by the human body tissues through photoelectric conversion, converted into an electrical signal and amplified and emitted.

Pin Description:

VIN: Main power input terminal 1.8V-5V; 3-bit pad: select the bus pull-up level, according to the pin main voltage, select 1.8V or 3.3V (this terminal contains 3.3V and above)

SCL: connect the I2C bus clock;

SDA: data connected to the I2C bus;

 INT: MAX30102 chip interrupt pin;

 RD: RED of MAX30102 chip, LED ground terminal, – generally not connected;

 IRD: The MAX30102 chip's IR and LED grounding is generally not connected;

GND: Ground wire

Package Included:

1 x MAX30102 heart rate sensor module