I think the hardest part of this project is to figure out a way to connect heartbeat sensor to LED control and analyze the data generated by the sensor. I found a website (https://beckystern.com/wp-content/uploads/2008/10/pulse-sensor-beating-heart-headband.pdf) that teaches you how to make a headband reacting to wearer's heartbeat. I think using Arduino on prototypes is fine, but it is not practical to attach Arduino on a clothes in real life. There must be some other ways to build a smaller embedded structure that can control the lights according to wearer's heartbeat. I would like to investigate this furthermore.
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