MAX30102 Pulse Oximeter Heart Rate Sensor Module

The MAX30102 Pulse Oximeter Heart Rate Sensor Module is an integrated pulse oximetry and heart-rate monitor. It uses photoplethysmography (PPG) with red and IR LEDs to detect blood volume changes for accurate health monitoring.

Key Features

• Pulse oximetry (SpO2) measurement capability
• Heart rate monitoring with 16-bit ADC resolution
• Integrated red and IR LEDs with photodetectors
• I2C interface for easy microcontroller connection
• Ultra-low power operation for wearable devices
• High SNR for accurate readings in varying conditions
• Motion artifact rejection for active monitoring

Technical Specifications

Applications

• Wearable fitness devices and activity trackers
• Medical monitoring and patient care systems
• Health tracking applications
• Smart watches and wellness devices
• Research projects in biomedical engineering
• Sleep monitoring and apnea detection

Important Notes

• Requires firm contact with skin – use finger clip or wrist band
• Ambient light affects readings – shield sensor from external light
• Motion artifacts reduce accuracy – keep finger still during measurement
• Use SparkFun or Maxim library for Arduino
• Not a medical-grade device – for hobby/educational monitoring only