There is no better way to learn electronics than building and programming your own things. Adafruit has shared a guide that shows you what it takes to make a LED harness bra with NeoPixels and a Circuit Playground Express.
This can be worn over anything. You can make the harness in the size and shape that works for you.
LED Harness Tutorial - Arduino Libraries @adafruit #adafruit #CircuitPlaygroundExpress
More information is available here.
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