Microcontroller based pulse oximeter for undergraduate capstone design

Michael Tamayo, Andrew Westover, Ying Sun

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

6 Scopus citations

Abstract

Pulse oximeters are used worldwide as a non-intrusive way to monitor a patient's pulse and blood-oxygen saturation instantaneously. The purpose of this design is to examine the possibility of using a simple microcontroller to measure pulse and blood-oxygen saturation in real time, as well as the level of difficulty and learning curve associated with assigning such a task as a senior capstone design project. The circuit consists of a PIC18F452 microcontroller, transistor network, photoplethysmogram amplifier (PPG), pulse oximeter probe, digital-to-analog converter (DAC), and an LCD screen to display results. Software is written in C++ for the microprocessor, which supports a limited C syntax. The project requires various engineering proficiencies such as signal processing, programming, circuitry, and microprocessors. Overall, the project is a good introduction to medical instrumentation and capstone design for undergraduate biomedical and electrical engineers.

Original languageEnglish
Title of host publicationProceedings of the 2010 IEEE 36th Annual Northeast Bioengineering Conference, NEBEC 2010
DOIs
StatePublished - 2010
Externally publishedYes
Event36th Annual Northeast Bioengineering Conference, NEBEC 2010 - New York, NY, United States
Duration: Mar 26 2010Mar 28 2010

Publication series

NameProceedings of the 2010 IEEE 36th Annual Northeast Bioengineering Conference, NEBEC 2010

Conference

Conference36th Annual Northeast Bioengineering Conference, NEBEC 2010
Country/TerritoryUnited States
CityNew York, NY
Period03/26/1003/28/10

Keywords

  • Biomedical engineering
  • Capstone design
  • Photoplethysmogram
  • Pulse oximeter
  • Undergraduate education

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