Be my Valentine: Electronic Valentines Day Card with AVRFebruary 9, 2012

Consists of 16 LED's, 2 constant-current drive shift registers, and an AVR ATTiny45 microcontroller (overkill for this job) all mounted a circuit etched onto Pyralux flexible circuit-board material.

The pulse harmonic was tuned to be close to my own heartbeat at the time of writing the software.

Via: Youtube, Source: Synoptic Labs

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