Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Sensors
Origin	-
Model Number	MAX30102
Operating Voltage	1.8V / 3.3V
Interface Type	I2C
LED Wavelengths	Red (660nm) and IR (880nm)
FIFO Depth	18 samples
Package Type	Breakout Board with Header Pins
Dimensions	16mm x 13mm x 4mm
Compatibility	Arduino, Raspberry Pi, ESP32
Sampling Rate	Up to 3200Hz
Application	Wearable Heart Rate & SpO2 Monitoring

6 reviews

Anonymous

Mar 27, 2026

Rating: 5/5

Perfect for DIY Wearables

This module works flawlessly with my Arduino project. The I2C communication is stable, and the library support is excellent. I was able to get heart rate readings within minutes of connecting it.

Anonymous

Mar 25, 2026

Rating: 3/5

Sensitive to movement

The sensor works well when stationary, but motion artifacts can affect the reading significantly. You will need to implement good filtering algorithms in your code for dynamic use cases.

Anonymous

Mar 13, 2026

Rating: 5/5

Excellent value for money

Compared to other biosensor modules on the market, this offers the best price-to-performance ratio. The breakout board layout is logical and easy to solder if you need to remove the headers.

Anonymous

Mar 13, 2026

Rating: 5/5

Great documentation support

I appreciated how many open-source libraries are available for this specific chip. It made integrating the sensor into my ESP32 fitness tracker prototype incredibly smooth.

Anonymous

Mar 08, 2026

Rating: 4/5

Good sensor, needs calibration

The hardware quality is solid. However, getting accurate SpO2 readings requires some careful calibration and shielding from ambient light. Once set up correctly, it performs very well.

Anonymous

Mar 04, 2026

Rating: 5/5

Easy for beginners

As someone new to embedded sensors, I found this module very forgiving. The voltage levels are clearly marked, and it worked immediately with the example code provided in the standard libraries.

5 FAQ

Q: How do I reduce interference from ambient light?

A: It is recommended to place the sensor in a light-tight enclosure or use a finger clip design that blocks external light. Software filtering can also help mitigate residual noise.

Q: Can this measure blood pressure?

A: No, this sensor is designed specifically for heart rate and blood oxygen saturation (SpO2) estimation. It does not have the capability to measure blood pressure directly.

Q: Does this module work directly with 5V Arduino boards?

A: The sensor operates at 1.8V to 3.3V. While many breakout boards include a voltage regulator, you should ensure your logic level shifter is compatible if connecting directly to a 5V microcontroller without regulation.

Q: What is the difference between MAX30100 and MAX30102?

A: The MAX30102 is an improved version with better noise performance, higher LED current drive, and enhanced motion artifact rejection compared to the older MAX30100 model.

Q: Is there a waterproof coating on the sensor?

A: The breakout board itself is not waterproof. The sensor IC has a protective window, but for wearable applications involving sweat or water, you will need to add your own enclosure or conformal coating.

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