Monitor Health with the MAX30102 Pulse Oximeter

Searching for a reliable sensor to track heart rate and oxygen levels? This compact module is a top choice for hobbyists, students, engineers, and developers working on health-focused projects. It’s perfect for building wearable fitness trackers, medical monitoring devices, or DIY health solutions using microcontrollers like Raspberry Pi, Arduino, or ESP8266/ESP32. Its small size and low power consumption make it a standout for innovative designs.

Why Choose the MAX30102 Pulse Oximeter?

The MAX30102 Pulse Oximeter integrates a sophisticated sensor solution, combining red and infrared LEDs with a photodetector to measure blood absorbance through the fingertip. This setup delivers accurate heart rate and SpO2 (blood oxygen saturation) readings, optimized for wearable applications. The module features a 16-bit sigma-delta ADC, ambient light cancellation, and a proprietary discrete-time filter, ensuring robust performance even in challenging conditions. Its I2C interface, paired with a 16-deep FIFO and an INT pin, simplifies data handling for seamless integration with host microcontrollers.

Operating at 1.8–3.3V, this sensor connects directly to 3.3V platforms like ESP8266 or ESP32 without additional hardware. For 5V systems like Arduino UNO, Mega, or Nano, a level shifter is required to ensure proper I2C communication. With an ultra-low shutdown current of 0.7µA, the MAX30102 is ideal for battery-powered devices, allowing the power supply to remain connected in standby mode. The module’s programmable sample rate and LED current further enhance power efficiency, extending battery life in portable applications.

Perfect for Wearable and Health Projects

Measuring just 5.6mm x 2.8mm x 1.2mm, this 14-pin system-in-package fits into compact designs like smartwatches, fitness bands, or medical monitors. It’s compatible with the SparkFun Max3010x library, easily accessible via the Arduino IDE’s library manager, making it beginner-friendly for single-board computers. The sensor’s high signal-to-noise ratio (SNR) and motion artifact resilience ensure dependable measurements, even during physical activity. For similar functionality, explore the MAX30100 module as an alternative option.

Whether you’re developing a health-monitoring wearable, a fitness assistant device, or a medical prototype, this sensor simplifies design and boosts performance. Its advanced features, like fast data output and high sample rate capability, support real-time monitoring, while the integrated analog front-end reduces external component needs. Pair it with other sensors for comprehensive health tracking or integrate it into IoT systems for remote data collection.

Key Features

• Sensing Technology: Red and infrared LEDs with photodetector for precise pulse and SpO2 measurements.
• Interface: I2C with 16-deep FIFO and INT pin for efficient data communication.
• Power Efficiency: 1.8–3.3V operation, 0.7µA standby current for battery-powered systems.
• Performance: 16-bit sigma-delta ADC, ambient light cancellation, and proprietary filter for reliability.
• Compact Design: 5.6mm x 2.8mm x 1.2mm, 14-pin optically enhanced package.

Why Shop at Piecom.in?

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Learn More: Get started with SparkFun MAX3010x Guide.