Heart Rate & SpO2 Sensor RAKwireless RAK12012 (MAX30102)

RAKwireless RAK12012 is an integrated WisBlock module for heart-rate and pulse oximetry measurements. It is built around the MAX30102 (commonly associated with Maxim Integrated and now under Analog Devices), a reflective optical sensor that enables heart rate and SpO2 sensing using an LED-based solution suitable for fingertip placement.

For developers, the RAK12012 is a practical starting point for wearables, personal health prototypes, and remote monitoring concepts without having to design an optical front end from scratch. The sensor supports robust motion artifact resilience and fast data output, which helps when measurements are taken in realistic conditions where users don’t remain perfectly still.

Real-world applications include:

Wearable prototypes capturing heart rate and SpO2 as key vitals.

R&D data collection for algorithms, dashboards, and device logic validation.

Fitness and wellness devices in prototyping and evaluation phases.

Education and demos for optical vital sign sensing in embedded systems.

Note: This module provides sensor data for heart rate and SpO2 but is not a medical-certified device. Medical or regulated use cases typically require calibration, validation, and certification.