Build a Solar-Powered Music Synth Zine(iffybooks.net)
iffybooks.net
Build a Solar-Powered Music Synth Zine
https://iffybooks.net/solar-synth-zine/
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In this project you’ll build a solar-powered oscillator circuit, using two NOT gates to generate a square wave. Then you’ll add two push button switches and a potentiometer to adjust the pitch.