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LED Valentines Day Card | by Synoptic Labs
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LED Valentines Day Card

This year I gave my sweetheart a LED valentines day card. The LEDs were animated with a pulse harmonic tuned to my own heartbeat. (sappy, yeah I know, but she makes me feel sappy)

 

Bill of materials:

1 AVR ATTiny45 microcontroller

2 STP08DP05TTR 8-bit contsant current shift registers

16 red LED's (0805 package)

Pyralux flexible circuit board material

 

www.synopticlabs.com/blog/?p=31

 

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Taken on February 12, 2009