July 15, 2019

This color wheel instrument lets you ‘hear’ the rainbow

How we see colors is an interesting concept, and as a conversation starter about the physics of color and sound, maker Marcin Poblocki created his own ‘Color Instrument.’

Poblocki’s device rotates a wheel of colors around under a TCS3200/TCS230 sensor via a continuous rotation-modded SG90 servo motor. An Arduino Nano then spits out the tone corresponding to the color it senses using a small speaker, allowing for simple songs to be produced according to hue arrangements.

It’s a neat idea that could be taken in many different directions. At the very least, it would certainly spark conversation, perhaps questioning, as noted in the project write-up, why the color pink isn’t included in the natural light spectrum.

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