audio Using a microphone with an Arduino

  
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This requires expensive hardware (microphone & amplifier) and some sophisticated audio analyizig on the microcontroller. Even a complete microphone with amplyfier circuit does not provide the desired results (according to the comments on this product) I am entirely new to the Arduino (but I`m familiar with programming). In order to built a VU meter, I want to put a microphone to the analog 0 pin of the Arduino and display the value via the serial connection.
audio Using a microphone with an Arduino - schematic




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