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Sound-Activated and Wearable Light Organ

Sound-Activated and Wearable Light Organ

About the size of two 9V batteries, and powered by only one, our latest Weekend Project, the Light Organ, is both portable and fun! The beating heart of this project is the LM324 Integrated Circuit (IC), the black chip in the middle of the board. This legendary IC actually has four operational amplifiers (or “op-amps”) embedded in it, although for the purpose of this project, we’re only using two.

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