Measuring meditation with a heart rate

meditation

We’ve seen our fair share of builds over the years that attempt to peer inside a user’s head and divine their state of mind. Whether the goal is to induce lucid dreaming or just reduce anxiety, we’re always impressed with how many ways you can detect moods with physiological measurements.  [Kirk] has been measuring his own physiology for months, and found the biggest change during meditation is the variability in his heart rate. Using that algorithm, he made an orb that changes colors when he’s meditating.

The hardware for the build uses a Bluetooth LE heart rate monitor connected to a smart phone communicating with an Electric Imp. After processing the heart rate data, the Imp triggers an RGB LED strip controlled with an Arduino.  The result is a plastic orb that glows whenever the user is displaying some sort of mindfulness, cross referenced with algorithm generated from mindlessly browsing the Internet.

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