MAX30102 Pulse Oximeter And Heart Rate Sensor – I2C Interface

The MAX30102 Pulse Oximeter and Heart Rate Sensor is a compact optical biosensing module designed for measuring blood oxygen saturation (SpO2) and heart rate in embedded and wearable applications. It integrates red and infrared LEDs, photodetectors, optical components, and low-noise analog front-end electronics with ambient light rejection. Operating from a 1.8V core supply and 3.3–5V LED supply, it communicates via a standard I2C interface. The device supports software shutdown with zero standby current, making it suitable for battery-powered systems such as wearable devices, fitness monitors, and mobile platforms.

• Integrated Red and IR LEDs (660 nm / 880 nm)
  
• Onboard Photodetector and Optical Elements
  
• Low-Noise Analog Front-End with Ambient Light Rejection
  
• I2C Digital Communication Interface
  
• 1.8V Core Supply Operation
  
• 3.3–5V LED Supply Compatibility
  
• Software Shutdown with Zero Standby Current
  
• Compact PCB Design 20.3 × 15.2 mm
  
• Wide Operating Temperature Range
  
• Suitable for Wearable and Mobile Devices

• Core Operating Voltage: 1.8V DC
  
• LED Supply Voltage: 3.3–5V DC
  
• Communication Interface: I2C
  
• LED Peak Wavelength (Red): 660 nm
  
• LED Peak Wavelength (IR): 880 nm
  
• Operating Temperature Range: -40°C to +85°C
  
• Module Dimensions: 20.3 × 15.2 mm
• Weight: 1.1 g
  
• Shutdown Mode Current: 0 µA (software shutdown)
  
• Application Type: SpO2 and Heart Rate Monitoring
  

• MAX30102 Datasheet
  
• MAX30102 Arduino Library
• MAX30102 Pulse Oximeter And Heart Rate Sensor 3D Model 

• Pulse Oximeter! Measure Heart Rate and Oxygen Saturation using Max30102, Arduino and Oled Display
  
• MAX30102 Raspberry pi | Pulse Oximeter Sensor Interfacing with Raspberry PI