Ali Murtaza asked me how to hook up a heart rate sensor to a LED strip? I decided to write a tutorial to show how I would do it. I used the FastLED library for the LED animations (have a look at the video below).
I really love this library !.
If you are interested in the full tutorial including code, diagrams, pictures and video please visit my blog: http://arduinobasics.blogspot.com.au/2015/07/neopixel-heart-beat-display.html
This was a collaborative effort between the OpenLAB (http://openlab.com.au/), and ArduinoBasics (http://arduinobasics.blogspot.com).
https://www.youtube.com/watch?v=KEqQTcDHwEw