MAX30102 Heart Rate Sensor

The MAX30102 Heart Rate and Pulse Oximeter Sensor is a high-sensitivity, medical-grade sensor module used to measure heart rate (BPM) and blood oxygen saturation (SpO2​). It combines two LEDs (Red and Infrared) with a photodetector and low-noise electronics to detect the pulse through a finger or earlobe using photoplethysmography (PPG). Key Features: Dual Functionality: Provides simultaneous readings for both heart rate and peripheral oxygen saturation (SpO2​). Integrated LEDs: Includes 660nm (Red) and 880nm (IR) LEDs with an ambient light cancellation system for accurate readings. Low Power Consumption: Ultra-low power operation with a programmable sample rate and LED current, making it perfect for wearable fitness trackers. I2C Interface: Easy to communicate with microcontrollers; includes an internal 1.8V regulator and a 3.3V–5V logic level shifter. Protective Glass: Features an integrated glass cover to protect the sensor from sweat and environmental factors while maintaining high signal integrity.