MAX30102 Heart Rate & SpO₂ Pulse Oximeter Sensor Module

The MAX30102 Heart Rate and Pulse Oximeter Sensor Module is a high-performance biometric sensor designed for accurate measurement of heart rate and blood oxygen saturation (SpO₂). With its compact design and advanced integrated technology, it is widely used in wearable health devices, fitness trackers, smartwatches, and medical monitoring systems. For developers, students, and hobbyists, it offers an affordable and reliable way to bring health monitoring features into electronic projects using microcontrollers such as Arduino, ESP32, STM32, and Raspberry Pi.

This module is based on the Maxim Integrated MAX30102 chip, which combines two LEDs (red and infrared), photodetectors, optical elements, and low-noise electronics into a single package. This integration ensures high accuracy, low power consumption, and ease of use in health and biomedical projects.

Key Features of MAX30102 Heart Rate Sensor Module

Heart Rate Measurement: Accurately measures beats per minute (BPM).
SpO₂ Monitoring: Measures blood oxygen saturation using red and infrared LEDs.
High Sensitivity Photodetector: Ensures precise readings even in low-light or noisy environments.
I2C Communication Interface: Simple connection to microcontrollers like Arduino, ESP32, and Raspberry Pi.
Low Power Consumption: Ideal for wearable and portable devices.
On-Chip Temperature Sensor: Helps improve measurement accuracy and stability.
Integrated Ambient Light Rejection: Reduces noise and interference from external light sources.
Compact Design: Easy to integrate into health-monitoring devices.

MAX30102 Heart Rate and Pulse Oximeter Sensor

Technical Specifications

Chipset: Maxim Integrated MAX30102
LEDs: Red (660nm) and Infrared (880nm)
Supply Voltage: 1.8V (internal) and 3.3V (logic)
Interface: I2C (standard 7-bit address)
Current Consumption: Ultra-low power for battery-driven applications
On-Chip ADC: 18-bit resolution for precise readings
Dimensions: Compact and lightweight design, ideal for embedded projects

Why Choose the MAX30102 Pulse Oximeter Sensor?

The MAX30102 module is highly regarded for its accuracy, integration, and efficiency. Unlike traditional sensors that require multiple external components, the MAX30102 provides a ready-to-use, all-in-one solution. This makes it:

Developer-Friendly: Simple I2C communication for quick integration with Arduino libraries.
Highly Accurate: Dual-LED design improves SpO₂ measurement reliability.
Optimized for Wearables: Low power consumption extends battery life in portable devices.
Medical & Fitness Applications: Reliable enough for both hobby projects and advanced biomedical research.

Applications of MAX30102 Module

The MAX30102 Heart Rate and SpO₂ sensor is versatile and can be applied in:

Wearable Devices: Smartwatches, fitness trackers, and health bands.
Medical Devices: Portable pulse oximeters and patient monitoring systems.
DIY Health Projects: Arduino-based health monitors and IoT health devices.
Sports and Fitness: Monitoring heart rate during workouts and training.
Research and Education: Biomedical engineering, electronics labs, and IoT development.
IoT Health Monitoring Systems: Integration with ESP32 or Raspberry Pi for cloud-based health data logging.

How to Use the MAX30102 with Arduino

Connecting the MAX30102 sensor module to Arduino is straightforward:

Connect the SDA and SCL pins to Arduino I2C pins (A4 and A5 on Arduino Uno).
Power the module with 3.3V and connect GND.
Install available Arduino libraries such as Adafruit MAX30102 or SparkFun MAX3010x.
Upload sample codes to start measuring heart rate (BPM) and SpO₂ levels.
Use serial monitor or OLED displays to visualize results in real-time.

With ESP32 or Raspberry Pi, you can enhance functionality by sending health data to a cloud server or mobile app for remote health tracking.

Package Includes

1 × MAX30102 Heart Rate & SpO₂ Pulse Oximeter Sensor Module

Conclusion

The MAX30102 Heart Rate and Pulse Oximeter Sensor Module is a compact, reliable, and energy-efficient solution for biometric sensing. Whether you are developing a wearable health device, fitness tracker, or Arduino-based IoT health project, this sensor provides precise and consistent performance. Its integration of red and infrared LEDs with advanced signal processing ensures accurate heart rate and oxygen level monitoring, making it ideal for both educational and professional applications.

By choosing the MAX30102 sensor module, you gain access to one of the most advanced and widely used biometric sensors on the market, perfect for IoT health monitoring, biomedical projects, and wearable technology.

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