DESCRIPTION
The SparkFun gator:particle micro:bit Accessory Board incorporates the powerful MAX30102 sensor, enabling sensing of pulse oximetry (SpO2), heart rate (HR) monitoring, and particle (PM) detection. 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, and 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 or smoke from a fire).
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.
FEATURES
- gator:bit Compatible
- MAX30102: HR and SpO2sensor
- 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
RESOURCES
- Schematic
- Eagle Files
- Hookup Guide
-
Datasheet (MAX30102)
- AN6410: Signal to Noise Ratio
- AN6433: Depth Penetration for Biosensors
- gator:particle PXT Package
- micro:bit Information Page
- GitHub Hardware Repo
Speedy Shipping and Professional Packaging
Due to our longstanding partnership with UPS FedEx DHL as well as other leading global carriers, we are able offer a variety shipping options. Our warehouse staff is highly skilled and will pack your products according to our precise and exact specifications. Prior to shipping, your goods are thoroughly inspected and safely secured. We deliver to thousands of clients each day across multiple countries. This is a sign of our determination to be the largest online retailer in the world. Warehouses and distribution centers are located throughout Europe and the USA.
Note: Orders that include more than one item are assigned a processing time in accordance with the item.
Prior to shipment, we inspect the ordered items carefully before shipping. Today, the majority orders will be sent within 48 hours. Delivery is expected to take between 3 and seven days.
Returns
Stock is dynamic. It's not completely managed by us, as we're involved with several parties such as the factory and the storage. The actual levels of stock can change at any moment. You may not receive your purchase after it's been placed.
Our policy lasts for 30 days. If you don't receive your product within 30 days, we are not able to issue the option of a refund or exchange.
The item you purchase must be in its original packaging and in good condition. It must also not be used. The item must be returned in its original packaging.
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