MAX30102 Heart Rate Sensor Module MH-ET TZT Blood Oxygen Concentration Detection For Arduino Ultra-low Power

Packaging included:

GND: ground wire

Bird: The IR and LED ground wires of the MAX30102 chip are generally not connected;

RD: chip red lead, ground terminal MAX30102 - generally not connected;

Int: interrupt pin of the MAX30102 chip;

SDA: Data connected to the I2C bus.

SCL: The clock is connected to the I2C bus;

Vin: main power terminal 1.8V-5V; Position pad 3: Select the pull-up level of the bus according to the main voltage of the select pin 1.8V or 3.3V (this terminal is 3.3V and above).

Pin description:

Working principle: Light-dissolving method: using human tissue to measure pulse and oxygen saturation to create different light transmission when blood vessels beat; Light Source: The electrode emits specific wavelength illumination with selectivity for oxyhemoglobin (HbO2) and hemoglobin (HB) in arterial blood. The transmission is converted into an electrical signal: the amount of Arterial pulsations are converted into light transmission. At this point, light is reflected by human tissue through photoelectric conversion, converted into electrical signal and amplified for output.

Spare mounting plate, hole size: 0.5X8.5mm

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

Output signal interface: I2C interface

Detection signal type: reflective signal (PPG)

LED power supply voltage: 3.3-5V

Peak wavelength of LED: 660nm/880nm

parameter:

MAX30102 is a pulse oximeter and pulse oximeter biosensor module. It integrates a red LED and an infrared LED, photodetectors, an optical device and a low-noise electronic circuit with ambient light protection function. The MAX30102 uses an 18V power supply. and 50V power supply Separate for internal LED lights, wear heart rate and blood oxygen collectors and wear them on your fingers, earlobes and wrists. Compatibility I2C standard communication interface, the collected values can be sent to the Arduino KL25Z and other microcontrollers for heart rate and blood oxygen calculations. The chip can also turn off the module via software with a standby current close to zero and power remains constant. Due to its excellent performance, the chip is widely used in Samsung Galaxy S series smartphones. This chip integrates a glass cover, effectively eliminating external and internal interference and has the best performance. reliable