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Taylor Holmes, Jason Partin , William Rody , Malcolm Stagg

Taylor Holmes, Jason Partin , William Rody , Malcolm Stagg. Goals From Milestone 1. Create an effective strap for the thermistor Integrate all the systems with the microcontroller (Coding) Solder all systems and test them Create a smoother, more space-efficient enclosure.

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Taylor Holmes, Jason Partin , William Rody , Malcolm Stagg

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  1. Taylor Holmes, Jason Partin, William Rody, Malcolm Stagg

  2. Goals From Milestone 1 • Create an effective strap for the thermistor • Integrate all the systems with the microcontroller (Coding) • Solder all systems and test them • Create a smoother, more space-efficient enclosure

  3. Smoother, More Space Efficient Enclosure

  4. Solar CellKXOB22-12X1 • Each device will have 4 solar cells. • Solar Cells will be connected in series.

  5. 110mAhLi-Ion Battery • Each device will have 2 Li-Ion batteries. • Batteries will be connected in parallel.

  6. Thermistor Testing • Contact Not much of a problem • Resistance Rises Rapidly over large gap • Slower over smaller gap (6 Seconds/10mV) • Not affected by any likely strap material • New Formula Approximation to find Temp

  7. Manufactured PCBs

  8. Soldering SMD Capacitor

  9. Assembly

  10. New Enclosure

  11. Heartrate Sensor

  12. Coding • Finished interfaces to heartrate sensor, thermistor, accelerometer, LCD, and flash memory • Finished USB MSC (15MB flash drive) for storing data files • Finished USB HID for live data transfer • Using this instead of Virtual COM Port for better compatibility (and no custom drivers needed) • Pedometer, temperature and heartrate algorithms are basically working • About 99% of the microcontroller’s memory currently is in use, so this has required a lot of optimization

  13. Coding • Remaining items: • Finish user interface (menus, etc) on the device • Finish computer interface to a MATLAB executable • More optimizations and cleanup to make space for any additional changes • Test accuracy and performance of the sensors

  14. GUI

  15. GUI • Convert to .exe for stand alone program • MATLAB Compiler needed

  16. To Do for Final Presentation • Have all the devices in their enclosure • Have a standalone GUI • Have an Experiment Manual for Mrs. Cao • Have an Operating Manual

  17. Fin

  18. GUI

  19. GUI

  20. GUI

  21. GUI

  22. GUI

  23. GUI

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