Heart Spark Turns Your Heartbeat into Art

See your heart beat with the Heart Spark pendantHeart Spark is a heart-shaped pendant which flashes LED's in time with your heartbeat.

Heart Spark was created by Sensebridge, a research group interested in building human-machine interfaces based out of San Francisco's Noisebridge.

The Heart Spark works by using a polar chest strap which includes a transmitter that is used to measure your heartbeat and transmit that information wirelessly to the Heart Spark pendant. From there the circuit captures each beat and displays it on a flashing LED. Check out this video from Sensebridge to see the Heart Spark in action.

The Heart Spark is available from Sensebridge for $69. You can pick up a polar chest strap easily at Amazon.com or a local sporting goods store. Simply add a necklace chain and voila! You'll have your very own, completely unique Heart Spark.

The pendant has four modes:

Fake Mode: the six LEDs blink at 75 beats per minute (BPM) regardless, which allows the pendant to be worn even if you don't have a polar chest strap.

Regular Blink: all six LEDs flash in time with your heartbeat (you'll need to be wearing a polar chest strap for this to work)

Activity Blink: the number of LEDs that blink corresponds to your heart rate, as measured by the polar transmitter. The more LEDs blinking the faster your heart rate.

Circle Blink: The LEDs blink in a circle each time the polar transmitter detects a beat.

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