The SparkFun MAX30105 Particle Sensor is a flexible, powerful sensor enabling sensing of distance, heart rate, particle detection and even the blinking of an eye. The MAX30105 has been equipped with three LEDs as well as a very sensitive photon detector. The idea is to pulse the different LEDs, then detect what shines back. Based on the signal signature when returned, you can tell the presence of different types of particles or materials (such as oxygenated blood or smoke from a fire).
The MAX30105 utilizes a red LED, a green LED, and an IR (Infrared) LED for presence sensing, temperature sensing, heart-beat plotting and heart-rate monitoring among its multitude of uses, including Pulse Oximetry. The MAX30105 can run at 3.3V to 5V and can communicate with both 3.3V and 5V microcontrollers. We’ve also written an Arduino library for the MAX30105 Breakout, which takes care of all of the I2C communication, bit shifting, register writing and sample reading.
- Built-in Red, IR, and Green LEDs
- 5V operation (3.3V is allowed, but green LED is not guaranteed to operate)
- Onboard 1.8V regulation and I2C interface circuitry
- Sensitivity configurable down to 7.81pA
- 3200Hz maximum sample rate
- Built-in 32 sample FIFO (First In, First Out)
- Applications include presence detection, distance sensing (18" max), pulse oximetry, blood oxygen saturation level (SpO2), smoke and particle detection
Documentation and Resources:
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