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Measuring Heart Rate and SpO
2
Using the MAX32664A – A Quick Start Guide
UG7087; Rev 0; 8/19
Abstract
The MAX32664A is a variant of the MAX32664 sensor-hub family, which is specifically targeted
for the finger-based measurement of heart rate and SpO
2
. Combined with the MAX30101 optical
sensor and a 3-axis accelerometer, it provides a sensor’s raw data, as well as calculated heart-
rate and SpO
2
data to a host device through its I
2
C slave interface. This document provides
step-by-step instructions that enable a user to communicate with the MAX32664A, and to
calibrate, configure, and receive measurement and monitoring data.
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