MAX30102 Heart Rate & Blood Oxygen Sensor Module (GY-MAX30102)

The GY-MAX30102 is a compact, high-precision pulse oximetry and heart rate sensor module built around the Maxim MAX30102 integrated circuit. Designed for electronics hobbyists, engineers, and makers, this SMD module is ideal for DIY wearables, Arduino/Raspberry Pi projects, fitness-tracking prototypes, and embedded system development.

Key Features

Dual Measurement: Simultaneously measures heart rate (BPM) and blood oxygen saturation (SpO2) via optical sensing
Integrated LEDs: On-board red and infrared LEDs with optical photodetector for accurate reflective readings
Low Power Consumption: Ultra-low power design — ideal for battery-powered wearable prototypes
I²C Interface: Simple two-wire I²C communication for easy integration with Arduino, ESP32, STM32, Raspberry Pi, and more
Compact SMD Design: Tiny footprint fits neatly on breadboards or custom PCBs
Wide Compatibility: Works with 1.8V–5V logic levels; onboard voltage regulator included
Library Support: Compatible with popular open-source Arduino libraries for rapid prototyping

Specifications

IC: Maxim MAX30102
Interface: I²C
Supply Voltage: 1.8V – 5V DC
Measurements: Heart Rate (BPM) + SpO2 (%)
LED Wavelengths: Red (660 nm) + Infrared (880 nm)
Package: SMD module with breakout pins
Includes: 1× GY-MAX30102 SMD sensor module

What's in the Box?

1× GY-MAX30102 Sensor Module (SMD)

Perfect For

Arduino, ESP32, and Raspberry Pi DIY wearable projects
Health and fitness monitoring prototypes
Embedded systems coursework and STEM education
Robotics and smart device integrations

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Frequently Asked Questions

Q: What does the GY-MAX30102 sensor module measure?

A: The GY-MAX30102 sensor module uses integrated red and infrared LEDs combined with an optical photodetector to measure two key signals: heart rate (in BPM) and blood oxygen saturation (SpO2 %). It is widely used in DIY wearables, embedded prototypes, and maker electronics projects.

Q: Is the MAX30102 module compatible with Arduino and Raspberry Pi?

A: Yes! The GY-MAX30102 communicates over I²C, making it fully compatible with Arduino (Uno, Nano, Mega), ESP8266, ESP32, STM32, and Raspberry Pi boards. Free open-source libraries are available to get you up and running quickly.

Q: What is included with the GY-MAX30102 module?

A: Each order includes one GY-MAX30102 SMD sensor module. The module comes with breakout header pins for easy breadboard or PCB integration.

Q: What power supply does the MAX30102 module require?

A: The module supports a supply voltage of 1.8V to 5V DC. An onboard voltage regulator ensures stable operation whether you're using 3.3V or 5V microcontroller platforms.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.