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Changing amplitude example to output values in dB #24

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Merged
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Dec 17, 2020
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Changing amplitude example to output values in dB #24

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7 changes: 4 additions & 3 deletions examples/AmplitudeSerialPlotter/AmplitudeSerialPlotter.ino
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Original file line number Diff line number Diff line change
Expand Up @@ -49,8 +49,9 @@ void loop() {
if (amplitudeAnalyzer.available()) {
// read the new amplitude
int amplitude = amplitudeAnalyzer.read();

// print out the amplititude to the serial monitor
Serial.println(amplitude);
//dB relative to full scale
int dpFS = 20 * log10(abs(amplitude));
// print out the decibel to the serial monitor
Serial.println(dpFS);
}
}