1. Andrew mortallero, Irene ng January 23, 2014
EEL 4924 Project: E-Run
Andrew mortallero, Irene ng
January 23, 2014

2. Project Inspiration

3. Project overview
We aspire to create a portable fitness guide that would motivate, record and advise the runner as he/she goes about his/her route. This device would be worn by a runner and consist of the following features:
Play music that has an ideal BPM correlating to the speed at which you want to run
Log your runs so you can review your progress over time
Advise your pace based on your heart rate and temperature (i.e. if you heart rate is too fast, the guide will advise you to slow down)

4. Technical Objectives
Accurately measure heart rate with an IR emitter/detector pair
Calculate body temperature using a thermistor
Use an accelerometer to measure pace and distance traveled
Collect, log, and transmit data via Bluetooth
Match song tempo to runner’s pace and speed/slow music according to user preference
Output audio music files to headphone jack using SD card and SPI

5. Block diagram

6. Pulse Sensor
Photoplethysmography (PPG is a noninvasive method of measuring blood volume in tissue
PPG works by illuminating the skin and measuring changes in light absorption
This can be accomplished using an IR light emitter and phototransistor
Microcontroller
Amplification
Filtering

7. Distance calculator – ADXL335

8. Thermistor Circuit
Using a 10k thermistor, we will be able to detect dangerous temperatures for our runner
If the runner gets too hot, we’ll tell him/her to cool down for a bit

9. Gantt Chart