it works... mostly

I went to an awesome Valentine's day party recently where I knew there would be some creative outfits, so I decided to crank out some working version of the heart rate monitor vest. I think there are some better images out there, but this is all I have for now:
This is the system working without the shirt on, the number displayed is my current heart rate:

I sewed the leds, lilypad board, and the lilypad power supply into the vest. The battery and heart rate monitor interface are in a pocket inside the front of the shirt. The shirt did not always pick up the heart rate. I think this was because I was not sweating enough. Maybe next time I will put some salt water on the sensors. Also there were some software bugs and I think some of the conductive threads got crossed.

Mostly, people did not realize this was pulsing with my heart rate. I set up a range from 60-160 bpm where the shirt would always pulse atleast 60 bpm(all blue) and pulse up to 160 bpm, slowly becoming all red.

Up next: fix software bugs, maybe range the colors from 70-160 bpm. Also, more lights!

This worked pretty well considering that I finished the thing a few hours before heading off to the party.