システムボード 7141

MAXREFDES103#: Wrist-Based SpO2, HR, and HRV Health Sensor Platform



The MAXREFDES103# is a wrist-worn wearable form factor that demonstrates the high sensitivity and algorithm processing functions for health-sensing applications. This health sensor band platform includes an enclosure and a biometric sensor hub with an embedded algorithm for heart rate and SpO2 (MAX32664C) which processes PPG signals from the analog-front-end (AFE) sensor (MAX86141). Algorithm output and raw data can be streamed through Bluetooth® to an Android® app or PC GUI for demonstration, evaluation, and customized development.

Design files, firmware, and software can be found on the Design Resources tab. The board is also available for purchase.

Features

  • Photoplethysmography (PPG)
  • Wrist-based embedded heart rate, blood oxygen saturation (SpO2) algorithm
  • Heart rate variability (HRV), respiration rate, sleep quality library algorithm
  • Wearable health band form factor
  • MAX32664 sensor hub
  • MAX86141 PPG analog front-end
  • 3-axis accelerometer
  • Windows® and Android GUIs

Applications

  • Wearable sports watch
  • Healthcare tracker
  • Heart signal data tracker
MAXREFDES103# 拡大表示+

Introduction

The MAXREFDES103# contains enables quick evaluation of our hardware and embedded firmware for heart-rate and SpO2 monitoring on a wrist-based platform to significantly shorten development time for custom fitness, health, and clinical applications.

The MAXREFDES103# platform includes the following key components

  • Micro board, which includes the MAX32630 microcontroller, MAX20303 power-management IC (PMIC), dual-mode Bluetooth, and 6-axis accelerometer and gyroscope
  • Sensor board, which includes the MAX86141 AFE, optical heart-rate sensor with one green LED, one red LED, one IR LED, two photodiodes, and MAX32664C biometric sensor hub with an embedded algorithm for heart rate and SpO2 monitoring
  • MAXDAP Pico Adapter board for use during a firmware upgrade for the micro board
  • Health sensor band enclosure and straps
  • Hardware design files, firmware, and software

System Diagram

Figure 1. MAXREFDES103# system diagram.

User Guide

Required equipment

  • PC or Android device (e.g., tablet) with Bluetooth connection for data logging

Android is a registered trademark of Google Inc.
Arm and Cortex are registered trademarks of Arm Limited.
Maxim is a registered trademark of Maxim Integrated Products, Inc.
The Bluetooth word mark and logos are registered trademarks owned by Bluetooth SIG, Inc.
Windows is a registered trademark of Microsoft Corporation.

User Guide

Required equipment

  • PC or Android device (e.g., tablet) with Bluetooth connection for data logging

Download, read, and carefully follow each step in the MAXREFDES103# User Guide.

All Design Files

Download All Design Files

Hardware Files:

Each file includes schematic, BOM, PCB layout, fab package, and PCB CAD

Software
Complete Evaluation Package, 3.4.5


 
Status:
Package:
Temperature:

MAX32664
超低電力生体センサーハブ

  • 生体センサーハブによって市場投入までの時間の短縮を実現
  • 指ベース(バージョンA)アルゴリズムの測定対象:
  • 手首ベース(バージョンB)アルゴリズムの測定対象:

MAX20303
PMIC、超低IQ電圧レギュレータ、バッテリチャージャ、および残量ゲージ内蔵、小型リチウムイオンシステム用

  • バッテリ充電間のバッテリ使用時間を延長
  • リチウムイオンバッテリ充電の実装が容易
  • 高集積によってソリューション実装面積を最小化

MAX86141
クラス最高の光学式パルスオキシメーターおよび心拍数センサー、ウェアラブルヘルス用

  • 完全なシングルチャネル、光データ収集システム
  • 内蔵アルゴリズムによって高速環境光過渡の除去をさらに強化
  • 透過型および反射型心拍数またはSpO2監視用に最適化されたアーキテクチャ

MAX32630
超低電力FPU内蔵Arm Cortex-M4ベースのマイクロコントローラ(MCU)、2MBのフラッシュおよび512KBのSRAM内蔵

  • ウェラブル機器用高効率マイクロコントローラ
  • 電源管理によってバッテリアプリケーションのアップタイムを最大化
  • 最適なペリフェラルミックスによってプラットフォーム拡張性を実現

MAX4740
クワッドSPDTオーディオスイッチ

  • 低オン抵抗:0.61Ω (typ)
  • チャネル間マッチング:0.06Ω (typ)
  • オン抵抗の平坦性:0.32Ω (typ)