Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Sensors
Origin	-
Chip Model	MAX30100
Function	Heart Rate and SpO2 Detection
Interface	I2C Communication Protocol
Operating Voltage	3.3V - 5.0V DC
LED Wavelengths	Red (660nm) and Infrared (940nm)
FIFO Buffer	18-slot Deep FIFO
Package Type	Breakout Board with Header Pins
Compatibility	Arduino, Raspberry Pi, ESP32
Dimensions	18mm x 16mm x 4mm
Application	Wearable Health Monitoring Prototypes

6 reviews

Anonymous

Mar 24, 2026

Rating: 4/5

Solid component for the price

For the cost, you cannot beat this module. It's not a clinical-grade device, but for testing algorithms and building fitness tracker concepts, it is ideal.

Anonymous

Mar 19, 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. Great value for prototyping health sensors.

Anonymous

Mar 18, 2026

Rating: 5/5

Excellent data output

The FIFO buffer helps prevent data loss during high-speed sampling. The raw data output is clean and easy to process on an ESP32. Very satisfied with this purchase.

Anonymous

Mar 09, 2026

Rating: 5/5

Easy to integrate

Plug and play with the standard libraries. The breakout board layout is logical, making wiring very simple. Highly recommended for students and makers.

Anonymous

Mar 05, 2026

Rating: 3/5

Sensitive to ambient light

Works well indoors, but struggles with accuracy if there is strong sunlight interference. You need to build a good enclosure to block external light for best results.

Anonymous

Mar 01, 2026

Rating: 4/5

Good sensor, needs calibration

The hardware quality is solid. However, getting accurate SpO2 readings required some careful calibration against a medical device. Not for medical use, but great for learning.

5 FAQ

Q: What is the maximum sampling rate supported?

A: The MAX30100 chip supports programmable sample rates up to 1000Hz, though typical heart rate applications usually operate between 50Hz and 100Hz.

Q: Is a 5V logic level safe for the I2C pins?

A: While the board can be powered by 5V, the I2C logic lines are 3.3V. If your microcontroller uses 5V logic, we recommend using a logic level converter to ensure safety.

Q: How do I reduce noise in the readings?

A: Ensure the sensor has firm contact with the skin, block ambient light with an opaque cover, and utilize the built-in digital filtering options in the library settings.

Q: Does this module come with example code for Arduino?

A: Yes, there are several open-source libraries available on GitHub that include example sketches for reading heart rate and SpO2 data using Arduino IDE.

Q: Can this be used as a certified medical device?

A: No, this module is intended for educational, prototyping, and hobbyist purposes only. It is not calibrated or certified for medical diagnosis or treatment.

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