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Add Health and Biometric Sensing to Your Next Build

The Pulse Oximeter Heart-Rate Sensor Breakout MAX30102 is a biometric sensor designed for wearables, pulse demos, biometric logging, and health-focused prototypes. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds.

Key details include Temperature Range: -40°C to +85°C; Operating Voltage: 1.8V–5.5V (LEDs powered by 5V); Interface: I²C.

Important: This module is meant for learning, prototyping, and general wellness projects. It is not a medical device and should not be used for diagnosis.

Why you’ll love it

  • Integrated cover glass: Integrated cover glass for durability and performance
  • Programmable sample rate & LED current: Programmable sample rate & LED current for power savings
  • Key feature: Low-power operation (<1mW) and ultra-low shutdown current
  • Easy wiring: I²C
  • Sensing range: -40°C to +85°C
  • Power range: 1.8V–5.5V (LEDs powered by 5V)

Compare with similar products

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What you can build

This sensor is a good fit for heart-rate demos, wearable prototypes, pulse logging, finger-clip projects, and education kits.

Starter bundles

Pair it with an Arduino-compatible board, ESP32, or Raspberry Pi, plus a breadboard or jumper wires for quick setup and testing.

Recommended add-ons

Useful add-ons include breadboards, jumper wires, displays, enclosures, and logging modules, depending on how you plan to power, mount, and log the sensor.

Technical specifications

Product Pulse Oximeter Heart-Rate Sensor Breakout MAX30102
Interface I²C
Temperature Range -40°C to +85°C
SpO₂ Range 70–100%
Heart Rate Range 30–200 BPM
Operating Voltage 1.8V–5.5V (LEDs powered by 5V)
Working Current ~5mA
Module Size 5.6 × 3.3 × 1.55mm (14-pin optical module)

Wiring & usage notes

Check the pin labels on the Pulse Oximeter Heart-Rate Sensor Breakout MAX30102 and match them to your controller voltage, ground, and signal pins. Keep wiring short and verify the logic level before powering the module. This module is meant for learning, prototyping, and general wellness projects. It is not a medical device and should not be used for diagnosis.

What’s in the box

1 × Pulse Oximeter Heart-Rate Sensor Breakout MAX30102

Frequently Asked Questions

What does the Pulse Oximeter Heart-Rate Sensor Breakout MAX30102 measure? It is designed to measure pulse, heart-rate, or ECG-related signals.
Can I use it with Arduino, ESP32, or Raspberry Pi? Yes. It is well suited for common maker and embedded platforms, as long as you power it at the correct voltage and match the signal level to your controller.
What affects accuracy? Power quality, wiring, mounting, target material, and the real environment can all affect the reading. It is best to test and calibrate in the final setup.
Is it good for prototyping? Yes. It is a practical choice for learning, proof-of-concept builds, and small automation projects.

Build with this board

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Notes from the bench

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Ask the community

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