Wrist-Based SpO2, HR, and HRV Health Sensor Platform

Product Overview

This health sensor band platform is a wrist-worn wearable form factor that demonstrates the high sensitivity and algorithm processing functions for health-sensing applications. It includes an enclosure and a biometric sensor hub with an embedded algorithm for heart rate and SpO2 (blood oxygen saturation) which processes PPG (Photoplethysmography) signals from the analog-front-end (AFE) sensor.

Algorithm output and raw data can be streamed through Bluetooth to an Android app or PC GUI for demonstration, evaluation, and customized development.

Includes:

• Micro board
• MAX32630 microcontroller
• MAX20303 power-management IC (PMIC)
• Dual-mode Bluetooth® connection
• Tri-color status LED
• Sensor board
• MAX86141 analog front-end and optical heart rate sensor with one green LEDs, one red LED, one IR LED, and two photodiodes
• MAX32664 microcontroller with embedded heart-rate algorithm
• Three-axis accelerometer
• MAX4740 quad SPDT switch which, in combination with the MAX86140/41, enables different LED and PD configurations
• One green LED, two combination RGB LEDs (One of these RGB LEDs is currently not used by the algorithm. The extra LED is reserved for future use: To simplify the design, the extra LED and the MAX4740 may be removed for the heart rate, SpO2 use case.)
• MAXDAP Pico Adapter board to be used during a firmware upgrade for the micro board
• Two USB Micro-B cables for firmware upgrade of the micro board or for PC communication with the micro board or charging of the health sensor band
• Health sensor band enclosure
• Battery
• One USB Type-C cable for PC communication with the micro board (Windows 7 or Windows 10) or charging of the health sensor band

Additional requirements:

• PC (Windows 10 only) with Bluetooth connection for data streaming and logging
• Android device with Bluetooth connection for data streaming and logging