Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Sensors
Origin	-
Chip Model	MAX30100
Function	Heart Rate and Blood Oxygen (SpO2) Detection
Interface	I2C Communication Protocol
Operating Voltage	3.3V to 5.5V 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, STM32
Sampling Rate	Up to 1000Hz Configurable
Application	Wearable Health Devices and Prototyping

6 reviews

Anonymous

Mar 31, 2026

Rating: 4/5

Compact and reliable

Small form factor makes it easy to integrate into wristbands. The only downside is that the included headers were slightly loose, but a little solder fixed that right up.

Anonymous

Mar 28, 2026

Rating: 5/5

Perfect for wearable projects

This module works flawlessly with my Arduino Uno. The I2C library is easy to use, and the data readings are consistent when the finger placement is steady. Great value for prototyping health monitors.

Anonymous

Mar 17, 2026

Rating: 5/5

Great for university projects

Used this for my final year project on remote patient monitoring. The FIFO buffer helps prevent data loss during high-speed sampling. Highly recommended for students.

Anonymous

Mar 14, 2026

Rating: 5/5

Easy integration with ESP32

Connected this to an ESP32 via I2C in minutes. The sample code provided in the community forums worked immediately. The interrupt pin is a nice feature for low-power applications.

Anonymous

Mar 09, 2026

Rating: 3/5

Sensitive to ambient light

The sensor works well indoors, but direct sunlight or bright room lights can interfere with the readings. I had to 3D print a small cover to shield the sensor for reliable outdoor testing.

Anonymous

Mar 03, 2026

Rating: 4/5

Good sensor, needs calibration

The hardware quality is solid. However, getting accurate SpO2 readings requires some calibration against a medical-grade device. For hobbyist purposes, it is excellent.

5 FAQ

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

A: Yes, the breakout board includes a voltage regulator and level shifters, making it safe to use with both 3.3V and 5V microcontrollers like the Arduino Uno.

Q: How do I reduce noise in the readings?

A: Ensure good contact with the skin, minimize movement during measurement, and shield the sensor from ambient light. Adjusting the LED current and sample rate in the code can also help filter noise.

Q: What library should I use for Raspberry Pi?

A: For Raspberry Pi, we recommend using Python libraries such as 'max30100' available via pip, or C++ libraries if you prefer wiringPi. Examples are available in our GitHub repository.

Q: Is the sensor waterproof?

A: The breakout board itself is not waterproof. If you plan to use it in a wearable device exposed to sweat or water, you will need to add your own waterproof enclosure or coating.

Q: Can this measure blood pressure?

A: No, the MAX30100 chip is designed specifically for heart rate (pulse) and blood oxygen saturation (SpO2) monitoring. It does not have the capability to measure blood pressure.

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