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- 22:02, 20 November 2023 Ajhg talk contribs created page A Sound (Frequency) Detection Circuit (Project 0038) (Created page with "<small>by Yuelin Kuang</small> ----- __NOTOC__ {{DISPLAYTITLE:A Sound (Frequency) Detection Circuit }} A Sound (Frequency) Detection Circuit <div class='overview'> == Project Overview == This circuit functions as an audio signal processing system designed to detect whether a sound wave's frequency falls within a specified range. When the microphone identifies a sound with a frequency above 424 Hz and below 1120 Hz, the circuit outputs a digital...")
