Build and program a string of LEDs to reflect your mood based on your heart rate. Materials 1- 20 RGB neopixel LEDs2-Arduino Duemillanove3-Computer with Arduino software4-Pulse sensor5-9V batter 6-9V battery holder7-Connecting wires8-Access to soldering 9-Black umbrella Building a Chain of L...By: sarahsellars
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from Instructables: exploring - technology http://www.instructables.com/id/Mood-Umbrella/
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