Description
The SparkFun gator:particle micro:bit Accessory Board incorporates the powerful MAX30102 sensor, enabling sensing of pulse oximetry (SpO2) & heart rate (HR) monitoring. The MAX30102 is a high-sensitivity pulse oximeter and heart-rate sensor that communicates over an I2C bus. The specified operating voltage for the MAX30102 is between 1.7V-2V.
The SparkFun gator:particle micro:bit Accessory Board incorporates the powerful MAX30102 sensor, enabling sensing of pulse oximetry (SpO2) & heart rate (HR) monitoring. As part of SparkFun's gator:bit series of alligator-clippable accessories, it can be easily interfaced with the micro:bit or other microcontrollers via the SparkFun gator:bit! The MAX30102 includes internal LEDs, photodetectors, optical elements, and low-noise electronics with ambient light rejection. The idea is to pulse the different LEDs, then detect what shines back. Based on the reflected signature, it's possible to detect different types of particles or materials (such as oxygenated blood).The MAX30102 is a high-sensitivity pulse oximeter and heart-rate sensor that communicates over an I2C bus. The specified operating voltage for the MAX30102 is between 1.7V-2V. For use with the gator:bit (v2) and micro:bit, you should provide 3.3V through the 3V3 and GND pads to keep the logic levels consistent; the 3.3V input is then regulated to 1.8V for the MAX30102.MAX30102: HR and SpO2 sensorOperating Voltage: 1.8-2VSupply Current:Heart Rate and SpO2 Mode: 600-1200AIR Only Mode: 600-1200AOperating Temperature: -40-85C(S?) ADCResolution: 15-18-bits (programmable)Sampling Rate: 50-3200sps (programmable)IR LEDLED Wavelength: 870-900nm (avg. 880nm)Forward Voltage: 1.4VRadiant Power: 6.5mWLED Driver Current: 0-50 mA (programmable)Red LEDLED Wavelength: 650-670nm (avg. 660 nm)Forward Voltage: 2.1VRadiant Power: 9.8mWLED Driver Current: 0-50 mA (programmable)Photodetector:Spectral Range of Sensitivity: 600-900nmRadiant Sensitive Area: 1.36mm2I2C Address0xAE - Write Address0xAF - Read Address
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