User:Nathanhall78/ENES-100/Project1

Week0 Preferences

 * EEG
 * 1) Cavitation
 * 2) Power Supply
 * 3) Stirling/Steam Engines
 * 4) Goldberg

Week1 Narrative
First week of Project One, in which my team was given the Biofeedback project. Out of the three sub-systems involved, I took the ECG finger clip portion. I signed out an Arduino Uno, along with a USB cable, and the ECG sensor itself. I performed a Google image search for ECG finger clips in order to see what the basic design of a finger clip is. The image search resulted in 330,000+ hits. I found some basic supplies at home for a mock-up of a finger clip. I also played with the Arduino and ECG sensor, as I have never been around either before. I found that the sensor of the ECG, loaded with the newest iteration of sensor script from pulsesensor.com, is extremely sensitive. There is a Goldilocks-zone of pressure that enables the ECG sensor to correctly read a pulse.

Here is the associated /CDIO/ page.

Week2 Narrative
I worked further on the finger clip design. Initially, as a quick attachment method, I used a bread-bag twisty tie, but the sensor was not secured properly. So then I moved to just use duct tape for the time being. I then downloaded Google Sketchup to start working towards a more permanent design.

Here's the /CDIO/ page.

Week3 Narrative
I worked further with Google SketchUp, becoming more familiar with the ins and outs of the program. I also came up with a rather rudimentary fingerclip design, more in lines with what is on the market. I was able to work through an error that kept cropping up regarding the item not being a solid. I handed off the sensor to Ben so that he may work on the Arduino/Sensor/LED dynamic. /CDIO/ is here.

Week4 Narrative
Due to issues outside of school, I was unable to make any further progress on the project for week 4. I did attempt to upload my SketchUp file for the finger clip to the Google SketchUp repository, but as it is not a .kmz filetype it would not accept the file. I decided to go around the Google SketchUp repository route, and upload the file to Dropbox.