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@@ -7,8 +7,8 @@ Youtube video of whistle switch example in action.
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[](https://www.youtube.com/watch?v=_e2mElB8zJs)
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#Download
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The actual version can be downloaded directly from GitHub [here](https://github.com/ArminJo/Arduino-FrequencyDetector/blob/master/extras/FrequencyDetector.zip?raw=true)
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## Installation
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Use the GitHub *clone or download -> Download ZIP* button, and add the .zip file with *Sketch -> Include Library -> add .ZIP Library...*.
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# Internal operation
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This library analyzes a (microphone) signal and outputs the detected frequency. It simply counts zero crossings and **it does do not use FFT**.
sentence=Measure frequency of analog captured signal connected to an Arduino and check for noise and mute.
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paragraph=Signal can be delivered e.g. by a microphone. Tested for UNO, Nano and ATtiny85. Example also includes a full blown tone switch (Pfeiffschalter) designed to react to human whistling .
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sentence=Measure frequency of analog captured signal connected to an Arduino and check for noise and mute.<br/>
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paragraph=Signal can be delivered e.g. by a microphone. Tested for UNO, Nano and ATtiny85.<br/>Examples includes a tone switch (Pfeiffschalter) designed to react to human whistling .
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