MAX30102 Heart Rate & Pulse Oximeter Sensor Module
MAX30102 Heart Rate and SpO2 Sensor Module
The MAX30102 is an integrated sensor module designed for heart rate monitoring and pulse oximetry. It combines red and infrared LEDs with a photodetector and low-noise analog processing to provide reliable SpO2 and heart rate data. Commonly used in fitness wearables, medical monitoring devices, and IoT health projects.
Key Specifications
| Specification | Value |
|---|---|
| Supply Voltage | 1.8V core / 3.3V or 5V module |
| LED Wavelengths | 660nm (Red), 880nm (IR) |
| Communication | I2C (address 0x57) |
| Dimensions | 15.5mm x 15.5mm |
| Heart Rate Range | 30–220 bpm |
| SpO2 Range | 70–100% |
What You Can Build With This
- Build a wearable fitness tracker with OLED display
- Create a SpO2 monitor for health screening
- Develop a remote patient monitoring system using ESP32
- Design a bio-feedback device for stress management
Compatibility
The MAX30102 communicates via I2C and works with any 3.3V microcontroller. Directly compatible with Arduino, ESP32, Raspberry Pi, and STM32 boards. For 5V Arduino boards, use a logic level converter to protect the sensor's I2C pins.
Wiring Notes
Connect VIN to 3.3V (or 5V if using a module with built-in regulator), GND to ground, SDA and SCL to the I2C pins. No external pull-ups needed as the module includes them. Place the sensor tightly against the skin, avoiding ambient light interference.
Why Buy from Compoden
Every component is sourced from verified suppliers and tested for compatibility before listing. We've spent 10 years building projects for makers, schools, and institutions across India. Ships from Bengaluru in 3-5 days. If defective on arrival, replace within 7 days.
Is this compatible with Arduino Uno?
Yes, but use a 3.3V logic level shifter for the I2C lines, as the MAX30102 operates at 3.3V logic.
What library should I use for programming?
The SparkFun MAX3010x library or the ProtoCentral MAX30102 library are popular choices and provide example sketches.
How accurate is the SpO2 measurement?
The sensor provides estimated SpO2 values suitable for non-medical applications; accuracy can be improved with calibration and stable placement.
📦 Free Setup Handoff Document Included
Every Compoden order includes a free setup handoff document — step-by-step instructions to get your component working within minutes. Download it via QR code on your package. The handoff document is also trained to help you troubleshoot the majority of problems.
What you can build with this
Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items