[Cyborg] open source pulse sensor

[Eric Boyd]

http://pulsesensor.com/2011/08/01/anatomy-of-the-diy-heart-rate-monitor/

The kickstarter for this project made the rounds a couple of weeks ago, 
but apparently failed to get posted here?  Anyway, this update on their 
open source optical heart beat sensor is pretty cool, they show the 
device operating live, with their GUI, in a variety of spots on the body 
- ear lobe, forehead, finger tip, middle of the finger, palm, lips all 
work well.  Wrist doesn't work very well (and similarly you can assume 
that most areas on the torso won't work). I am especially impressed with 
how movement-insensitive their data is on the ear, that's totally 
awesome.  It's a lot less clunky than most optical sensors as well.

I've pledged enough to get me two pulse sensor kits when they are ready 
- if you're interested, the kickstarter is still open, though they 
already have way more than they asked for :-)

http://www.kickstarter.com/projects/1342192419/pulse-sensor-an-open-source-heart-rate-sensor-that

Eric