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158b5efcd5
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38c7382729
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void setup() {
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Serial.begin(256000);
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}
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void loop() {
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// If using an electret microphone unit, then it needs adjusting
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// Select the Tools/Serial Plotter and use the display as an oscilloscope
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// Don't forget to select the correct speed! 256000
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// Connect audio to A0 or VP or VN
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Serial.println(analogRead(A0));
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}
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