PIMORONI MAX30101 Breakout Heart rate Oximeter smoke sensor


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SKU: 845800
  1. Based on MAX30101 – heart rate, oximeter, smoke sensor
  2. Green, red, and infra-red LEDs
  3. Interface: I2C (address 0x57)
  4. Compatible with 3.3V and 5V logic levels.


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Category: Raspberry Pi Accessories
Tags: Raspberry PI HAT, pimoroni

This PIMORONI MAX30101 Breakout Heart rate Oximeter smoke sensor has three LEDs—green, red, and infra-red—and photodetectors that can be used together to detect the amount of light reflected back to the sensor. A technique called photoplethysmography (PPG) can be used to detect the change in color of your skin with each beat of your heart when the sensor is pressed against your fingertip.

You can use the MAX30101 to detect particles in the air, like smoke, by measuring the amount of light bounced back to the sensor by the particles. A rough example of how to do this in the Python library.

It’s also compatible with fancy Breakout Garden HAT, where using breakouts is as easy as just popping it into one of the six slots and starting to grow your project, create, and code.

Note: This sensor (and the code in our Python library) should not be used for medical diagnosis, as the basis for a real smoke or fire detector, or in life-critical situations. It’s for fun/novelty use only, so bear that in mind while using it.


  1. MAX30105 – heart rate, oximeter, smoke sensor
  2. Green, red, and infra-red LEDs
  3. Photodetectors
  4. Ambient light rejection
  5. Temperature sensor
  6. I2C interface (address 0x57)
  7. 3.3V or 5V compatible
  8. Reverse polarity protection
  9. Compatible with all models of Raspberry Pi, and Arduino

Package Includes:

1 x Breakout Heart rate, Oximeter, smoke sensor.

1 x 5 Pin male header

1 x 5 Pin female right-angle header

SKU: 845800 Category: Tags: ,
Compatible With

All Models of Raspberry Pi and Arduino

Length (mm):


Width (mm):


Height (mm):


Weight (g):


Shipping Weight 0.015 kg
Shipping Dimensions 5 × 5 × 1 cm


Python Library

Arduino Library

Questions and answers of the customers

  1. 0 votes
    Q is it based on MAX 30101 or Prticle sensor MAX30105??? answer now
    Asked by lns27.android on January 31, 2023 9:20 pm

    The PIMORONI MAX30101 Breakout Heart rate Oxime... Read more

  2. 1 vote
    Q Is this 30101 or 30105? answer now
    Asked by prajyotjoshi17 on January 24, 2023 7:13 pm

    it is MAX 30101

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Country Of Origin: United Kingdom