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David King built this stoplight costume for his oldest daughter. It’s his first Arduino project. Besides flashing the expected red, green, and yellow lights, it incorporates an Adafruit WaveShield to play music. [Thanks, David!]

In the Maker Shed:


waveshield crop cc Adorable stoplight costume

Arduino WaveShield Kit

Sean Michael Ragan

I am descended from 5,000 generations of tool-using primates. Also, I went to college and stuff. I am a long-time contributor to MAKE magazine and My work has also appeared in ReadyMade, c’t – Magazin für Computertechnik, and The Wall Street Journal.

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