SparkFun Photodetector Breakout - MAX30101 (Qwiic)

The SparkFun Photodetector Breakout - MAX30101 (Qwiic) is a sophisticated upgrade from the SparkFun Particle Sensor Breakout. This cutting-edge product incorporates the MAX30101, an extremely sensitive optical sensor that supersedes the MAX30105 and MAX30102. The MAX30101 Breakout employs a photon detector to gauge the amount of light reflected back from the LEDs. This feature is perfect for a multitude of applications such as particle detection (like smoke), proximity measurements, and even photoplethysmography. The communication is exclusively carried out via I2C, utilizing the convenient Qwiic system. However, for those who prefer to use a breadboard, 2.54mm spaced pins are also available.

The SparkFun Photodetector Breakout is not just about its high-tech sensor. It also offers the convenience of the Qwiic connect system. This ecosystem of I2C sensors, actuators, shields, and cables makes prototyping faster and less prone to error. The Qwiic-enabled boards utilize a common 1mm pitch, 4-pin JST connector. This not only minimizes the required PCB space but also ensures you can't connect it wrongly due to its polarized connections.

With its compact size of 2.54 x 2.54 cm, the Qwiic Breakout Board is packed with features. The MAX30101 sensor comes with an integrated cover glass for optimal, robust performance and ultra-low power operation. It boasts a built-in photodetector and red, IR, and green LEDs in one package. It allows PWM control of individual LED channels and has an 18-bit ADC resolution. With a 10.24 MHz sample rate and data rate up to 3200 sps, it also includes a FIFO queue with a 32-element data buffer. The integrated temperature sensor has a 0.0625°C resolution. The I2C address is 0x57 (7-bit). The board also includes onboard 1.8V regulation and 5V step-up DC/DC Converter. It has 4 x 3.3mm mounting holes compatible with M3 screws, 2 Qwiic connectors, and 6 breakout pins.

For those seeking more precise and dependable biometric readings, SparkFun also offers the SparkFun Pulse Oximeter and Heart Rate Sensor. This product uses proprietary algorithms programmed on the MAX32664 Biometric Sensor Hub. However, it's important to note that SparkFun products are not intended to diagnose or treat any conditions and should not be used in life-saving applications.

The SparkFun Photodetector Breakout - MAX30101 (Qwiic) also comes with helpful documents, including a schematic, Eagle files, board dimensions, a hookup guide, the MAX30101 datasheet, the SparkFun MAX3010x Arduino Library, the Qwiic MAX3010x Python Package, and the GitHub Hardware Repo.