M5Stack Mini Heart Rate Unit (MAX30100) Pulse Oximeter

The M5Stack Mini Heart Rate Unit (MAX30100) Pulse Oximeter is a compact, high-performance heart rate and oxygen saturation (SpO2) monitoring solution, perfect for wearable and portable health devices.

Built around the MAX30100 chipset, the M5Stack Mini Heart Rate Unit integrates both a pulse oximetry and heart rate sensor into a single module. The MAX30100 is designed to meet the demanding requirements of modern wearable devices, offering excellent optical and electrical performance while maintaining a very small form factor. Thanks to its efficient design, minimal external components are needed, allowing for easy integration into any project.

How to Use the M5Stack Mini Heart Rate Unit (MAX30100) Pulse Oximeter

• Simply place your finger on the detection area of the unit.

• The sensor will measure your heart rate and SpO2 levels accurately and in real time.

Communication Protocol

The M5Stack Mini Heart Rate Unit communicates with the M5Core system via the I2C interface (address: 0x57), ensuring fast and reliable data transmission between the sensor and the microcontroller.

Key Features

• Pulse Oximetry and Heart Rate Sensing
  Powered by the MAX30100, offering accurate heart rate and oxygen saturation measurements.

• Programmable Sample Rate and LED Current
  Adjustable settings for optimized power consumption and measurement performance.

• Ultra-Low Shutdown Current
  Only 0.7 µA (typical), making it ideal for low-power applications.

• Advanced Measurement Performance
  Supports high sample rates and fast data output for real-time monitoring.

• Compact Design for Wearables
  Minimal external components, small size, and easy integration into compact systems.

• GROVE Interface
  Easy connection to M5Stack ecosystem and other compatible platforms.

• Software Development Support
  Fully compatible with Arduino development platform for rapid prototyping.

• Lego-Compatible Mounting Holes
  Two mounting holes for easy mechanical integration into modular projects.

Include

• 1x HEART Unit
• 1x Grove Cable

Specification

Frequently Asked Questions (FAQ)

Q1: What is the communication protocol of the M5Stack Mini Heart Rate Unit (MAX30100) Pulse Oximeter?

A:
The M5Stack Mini Heart Rate Unit uses the I2C communication protocol with a default address of 0x57. It allows simple and reliable integration with M5Stack controllers and other microcontrollers.

Q2: How do I measure heart rate using the M5Stack Mini Heart Rate Unit?

A:
To measure your heart rate, simply place your finger gently on the detection area of the M5Stack Mini Heart Rate Unit (MAX30100). The sensor will then capture real-time heart rate and SpO₂ (oxygen saturation) data.

Q3: Is the M5Stack Mini Heart Rate Unit compatible with Arduino?

A:
Yes, the unit is fully compatible with the Arduino development platform. You can quickly prototype and develop your health monitoring applications using standard Arduino libraries and examples.

Q4: What are the power-saving features of the MAX30100 chip?

A:
The MAX30100 features programmable sample rates and adjustable LED current to optimize power consumption. In shutdown mode, it consumes an ultra-low current of only 0.7µA (typical), making it ideal for battery-powered projects.

Q5: Can I adjust the sampling rate and LED brightness?

A:
Yes, both the sampling rate and the LED current are programmable, allowing you to fine-tune the sensor for either higher measurement accuracy or lower power consumption, depending on your application needs.

Q6: How can I physically mount the M5Stack Mini Heart Rate Unit into a project?

A:
The module features two Lego-compatible mounting holes, making it easy to integrate mechanically into existing modular systems or custom enclosures.

Q7: What applications are ideal for the M5Stack Mini Heart Rate Unit (MAX30100)?

A:
This unit is ideal for:

• Wearable devices

• Fitness and health monitoring systems

• Remote patient monitoring projects

• Portable IoT medical devices

• DIY Arduino health tracking projects