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amc2021:groupl:code:sound_detection [2021/09/05 01:38] – kshama001amc2021:groupl:code:sound_detection [2023/01/05 14:38] (current) – external edit 127.0.0.1
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 <file c++ Sound_Detection.ino> <file c++ Sound_Detection.ino>
  
- const int OUT_PIN = 12;          // The OUTPUT of the sound sensor is connected to the digital pin D12 of the Arduino  + const int OUT_PIN = 12;    // The OUTPUT of the sound sensor is connected to the digital pin D12 of the Arduino  
- const int SAMPLE_TIME = 10;      // The sampling time in milliseconds,  can be set differently if required + const int SAMPLE_TIME = 10;// The sampling time in milliseconds,  can be set differently if required 
- const int Threshold = 90;       // Threshold on decibel value for LED switching ON, the value has been optimized with respect to the used sampling time (900 cumulative digital counts ≈ 90 dB from "Schall")+ const int Threshold = 90;  // Threshold on decibel value for LED switching ON, the value has been optimized with respect to  
 +//the used sampling time (900 cumulative digital counts ≈ 90 dB from "Schall")
  
  unsigned long millisCurrent;     // current time  unsigned long millisCurrent;     // current time
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   sampleBufferValue++;                       //increments the sum variable by 1   sampleBufferValue++;                       //increments the sum variable by 1
   }   }
-   if (millisElapsed > SAMPLE_TIME) {       //if the elapsed time surpasses the sampling time, print the sampleBufferValue and test threshold for alarm+   if (millisElapsed > SAMPLE_TIME) {       //if the elapsed time surpasses the sampling time,  
 +   //print the sampleBufferValue and test threshold for alarm
        
-   dB = 0.0666 *(sampleBufferValue) + 30.223; //linear regression to calculate the decibel value based of the rough calibration of the sensor response +   dB = 0.0666 *(sampleBufferValue) + 30.223; //linear regression to calculate the decibel value based of  
 +   //the rough calibration of the sensor response 
   Serial.println(dB);                        // print decibel values on the Serial Monitor    Serial.println(dB);                        // print decibel values on the Serial Monitor 
   Serial.print("dB");                        // print sound unit decibel   Serial.print("dB");                        // print sound unit decibel
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 </file> </file>
 +[[amc2021:groupl:report:start|Back to report]]
amc2021/groupl/code/sound_detection.1630798704.txt.gz · Last modified: 2023/01/05 14:38 (external edit)