Jolly Tracker Monitors How Much You Smile

jolly tracker

Meet Jolly Tracker: a smart wearable designed to monitor how much you smile. It has five electrodes that you put on your face, two of each monitor muscle movement and two electrodes to shock you. The developers used an Arduino, a Muscle Spiker shield, and a TENS unit to complete this project.

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Jolly Tracker can be controlled from a mobile app and counts how many times you are smiling. McKinney is behind this interesting device. What do you think? How would you improve this?

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