Description

Description

The SPO2 MAX30102 Blood Oxygen Concentration Sensor is an integrated pulse oximeter or SO2 sensor. And heart rate monitor biosensor module. MAX30102 SO2 integrates a red LED. And an infrared LED, photodetector, optical components, and low-noise electronic circuitry with ambient light suppression.

Features Of MAX30102 SO2 Sensor:

  1. The MAX30102 features a 1.8V power supply and a separate 5.0V power supply for internal LEDs for heart rate and blood oxygen acquisition in wearable devices, worn on the fingers, earlobe, and wrist. The standard I2C-compatible communication interface can transmit the collected values ​​to the Arduino, KL25Z and other microcontrollers for heart rate and blood oxygen calculation.
  2. In addition, the chip can also shut down the module through software, the standby current is close to zero, and the power supply is always maintained. Because of its excellent performance, the chip is widely used in the Samsung Galaxy S series mobile phones.
  3. Compared with the previous generation MAX30100, the chip integrates a glass cover to effectively eliminate external and internal light interference and has the best reliable performance.

The Main Parameters:

  1. LED peak wavelength: 660nm/880nm
  2. LED power supply voltage: 3.3~5V
  3. Detection signal type: light reflection signal (PPG)
  4. Output signal interface: I2C interface
  5. Communication interface voltage: 1.8~3.3V~5V (optional)
  6. Board reserved assembly hole size: 0.5 x 8.5mm

Pin Description:

  1. VIN: main power input terminal 1.8-5V
  2. 3-bit pad: Select the pull-up level of the bus, depending on the pin master voltage, select 1.8v or 3_3v (this terminal contains 3.3V and above)
  3. SCL: the clock connected to the I2C bus;
  4. SDA: data connected to the I2C bus;
  5. INT: Interrupt pin of the MAX30102 chip;
  6. RD: RED LED ground terminal of MAX30102 chip, generally not connected;
  7. IRD: The IR LED ground of the MAX30102 chip is generally not connected;
  8. GND: Ground wire.

Principle Description:

  1.  Light-dissolving method: measuring the pulse and blood oxygen saturation by using human tissue to cause different transmittance when the blood vessel beats;
  2. Light source: a specific wavelength of light-emitting diode selective for oxyhemoglobin (H bO 2 ) and hemoglobin ( Hb ) in arterial blood;
  3. The transmittance is convert into an electrical signal: the change in the volume of the arterial pulsation causes a change in the transmittance of the light. At this time, the photoelectric variator receives the reflected light from the human tissue, converts it into an electrical signal, and amplifies and outputs it.

Package Includes:

  • 1 x  spo2 max30102 Blood Oxygen Concentration Sensor
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Additional information

Weight 0.1 kg

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