We have already covered plenty of awesome smart dresses and other clothing items here in the past. The Monitor Dress is a cool project you can try on your own to visualize your heart activity. The electrodes inside the dress measure the electrical signals running through the wearer’s body. There is also a microcontroller that lights up a circle of LEDs in front of the dress and can send the data over a wireless network to your other devices.
More items like this: here
To get started, you are going to need a NeoPixel Ring with 24 LEDs, Photon, heart rate monitor, button snaps, power bank, and a few other parts. linawassong has more information on Instructables.com.
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