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SparkFun gator:particle - micro:bit Accessory Board
SEN-15271
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).
- gator:bit Compatible
- MAX30102: HR and SpO2 sensor
- Operating Voltage: 1.8-2V
- Supply Current:
- Heart Rate and SpO2 Mode: 600-1200µA
- IR Only Mode: 600-1200µA
- Operating Temperature: -40°-85°C
- (ΣΔ) ADC
- Resolution: 15-18-bits (programmable)
- Sampling Rate: 50-3200sps (programmable)
- IR LED
- LED Wavelength: 870-900nm (avg. 880nm)
- Forward Voltage: 1.4V
- Radiant Power: 6.5mW
- LED Driver Current: 0-50 mA (programmable)
- Red LED
- LED Wavelength: 650-670nm (avg. 660 nm)
- Forward Voltage: 2.1V
- Radiant Power: 9.8mW
- LED Driver Current: 0-50 mA (programmable)
- Photodetector
- Spectral Range of Sensitivity: 600-900nm
- Radiant Sensitive Area: 1.36mm2
- I2C Address
- 0xAE - Write Address
- 0xAF - Read Address