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YouTubezarovka29
10 band audio spectrum analyzer with 400 LED FullHD
Another audio based project. This huge spectrum analyzer is based on previously build vu-meters. Simply filters the frequency of the sound source to DC level by bandpass filters on main board.(32Hz, 64Hz, 125Hz, 250Hz, 500Hz, 1kHz, 2kHz, 4kHz, 8kHz, 16kHz) All device contains 400 LEDs, 900 rezistors, 106 IOs, crazy project :D Power: 12V/7,5A ...
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