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This application report discusses the design of non-invasive optical plethysmography also called as pulsoximeter using the MSP430FG437 Microcontroller (MCU). The pulsoximeter consists of a peripheral probe combined with the MCU displaying the oxygen saturation and pulse rate on a LCD glass. The same sensor is used for both heart-rate detection and pulsoximetering in this application. The probe is placed on a peripheral point of the body such as a finger tip, ear lobe or the nose. The probe includes two light emitting diodes (LEDs), one in the visible red spectrum (660nm) and the other in the infrared spectrum (940nm). The percentage of oxygen in the body is worked by measuring the intensity from each frequency of light after it transmits through the body and then calculating the ratio between these two intensities.

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清华大学计算机课程之《C++程序设计》 -Tsinghua University, Computer Curriculum

用vc编写活动模板库-prepared using vc activities Template Library

Dynamic Memory Allocation

《编程精粹 ── Microsoft编写优质无错C程序秘诀》-"Programming Microsoft essence Building Building Quality prepared no wrong C program secret"

Word中操作的vba源码实例，很多有用的功能，希望对从事office自动化的朋友有帮助-Word operating vba source code examples, many useful functions, and they hope to engage in office automation has helped Friend

无线传感器网络仿真模拟技术比较分析,分析用于无线传感网络的一些工具。-Wireless sensor network simulation technology comparative analysis for wireless sensor network analysis tools.

csharp document for developers.