Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Sensors
Origin	-
Sensor Type	MAX30102 Optical Sensor
Interface	I2C Communication Protocol
Operating Voltage	1.8V to 3.3V DC
Wavelengths	Red (660nm) and Infrared (880nm)
FIFO Buffer	18-Word Deep FIFO
Sample Rate	Configurable up to 3200Hz
LED Current	Programmable up to 50mA
Package Dimensions	20mm x 15mm x 5mm
Compatibility	Arduino, Raspberry Pi, ESP32
Application	Wearable Heart Rate & SpO2 Monitoring

6 reviews

Anonymous

Mar 28, 2026

Rating: 4/5

Good sensor, needs calibration

The hardware quality is solid. However, getting accurate SpO2 readings required some tweaking of the LED current and sample rate settings. Once calibrated, it performs very well.

Anonymous

Mar 27, 2026

Rating: 5/5

Great documentation support

I appreciated how easy it was to find example code online. The sensor responds quickly to changes in pulse, making it ideal for real-time monitoring applications.

Anonymous

Mar 22, 2026

Rating: 5/5

Excellent value for money

Compared to other breakout boards, this offers the best price-to-performance ratio. The soldering pads are large enough for easy connection, and the onboard regulators work great.

Anonymous

Mar 20, 2026

Rating: 4/5

Reliable for prototyping

Used this for a university project on vital signs monitoring. It held up well during continuous testing over 48 hours. Just ensure you have a stable power supply.

Anonymous

Mar 10, 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 setup.

Anonymous

Mar 06, 2026

Rating: 5/5

Compact and efficient

The small form factor makes it easy to integrate into wristband designs. Power consumption is low, which is crucial for battery-operated devices.

5 FAQ

Q: Is this compatible with 5V logic microcontrollers like the standard Arduino Uno?

A: The module operates at 3.3V but includes level shifters on many breakout versions. If yours does not, you will need a logic level converter for safe 5V communication.

Q: What is the maximum distance the sensor can read from the skin?

A: The sensor requires direct contact or very close proximity (within 1-2mm) to the skin to function correctly, as it relies on light reflection.

Q: Can this sensor measure blood oxygen levels accurately without medical certification?

A: While the sensor provides SpO2 estimates suitable for hobbyist and fitness projects, it is not medically certified and should not be used for diagnostic purposes.

Q: Does this module come with a ready-to-use library for Arduino?

A: Yes, the MAX30102 is widely supported by the SparkFun MAX301x2 library available in the Arduino Library Manager, making integration straightforward.

Q: How do I reduce noise in the heart rate data?

A: Ensure the sensor fits snugly against the skin to block ambient light. Additionally, implementing a digital filter in your code, such as a moving average, can smooth out the data.

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