SlayMosquitoOverallCode.txt

int vibpin1 = 12;
int vibpin2 = 8;
int vibpin3 = 7; //setting up channels for digital input signal from vibration sensors
int relay1 = 0; //initialising value to store Positive (1) or negative (0) signal from all vibration sensors (using OR Logic)

unsigned long prevmillis  = millis();
long ontime = 10000;
long offtime = 3000;

#include "arduinoFFT.h" //library to perform fast fourier transform

#define SAMPLES 64 //Number of frequency samples for FFT
#define SAMPLING_FREQUENCY 2048 //Twice the maximum frequency to be detected
#define freqpin A0 //setting up channel for analog input from sound detector module
arduinoFFT FFT = arduinoFFT(); //perform

unsigned int samplingPeriod; 
unsigned long microSeconds;
double frequency0;

double vReal[SAMPLES];//creates vector of size samples to hold real values
double vImag[SAMPLES];//creates vector of size samples to hold imaginary values

int relay2 = 0;//initialising value to store positive (1) or negative (0) signal from frequency detector

int relaypin = 13; //final output or instruction from  arduino to relay for completing or breaking the circuit

void setup() {
 pinMode(vibpin1, INPUT);
 pinMode(vibpin2, INPUT);
 pinMode(vibpin3, INPUT);//setting up reading of input from vibration sensors
 pinMode(freqpin, INPUT);//setting up reading of input from sound sensor
 samplingPeriod = round(1000000*(1.0/SAMPLING_FREQUENCY));//period in microseconds
 pinMode(relaypin, OUTPUT);//setting up sending output to relay

}

void loop() {
 unsigned long cmillis;
 
 int val1; val1 = digitalRead(vibpin1);
 int val2; val2 = digitalRead(vibpin2);
 int val3; val3 = digitalRead(vibpin3);
 if(val1 == 1||val2 == 1||val3 == 1)
    {relay1 = 1;}
 else
    {relay1 = 0;}//reads overall signal from the three vibration sensors

    
 for(int i=0; i<SAMPLES; i++)
 {microSeconds=micros();//Number of microseconds since the arduino board began running code
 
 vReal[i]=analogRead(freqpin);//stores values of frequencies read
 vImag[i]=0;

 while(micros() < microSeconds + samplingPeriod)
   {}}//reads analog input from sound detector for given sampling period

 FFT.Windowing(vReal, SAMPLES, FFT_WIN_TYP_HAMMING, FFT_FORWARD);
 FFT.Compute(vReal, vImag, SAMPLES, FFT_FORWARD);
 FFT.ComplexToMagnitude(vReal, vImag, SAMPLES);//performs FFT on obtained samples

 frequency0 = FFT.MajorPeak(vReal, SAMPLES, SAMPLING_FREQUENCY);//detects maximum frequency detected
  
 if(frequency0 <= 600 && frequency0 >= 400)
    {relay2 = 1;}
 else
    {relay2 = 0;}//reads overall signal from sound sensor

    cmillis = millis();//time since arduino started reading script

 if ((relay1 == 1 || relay2 == 1)&&((millis() - cmillis) >= ontime))
    {digitalWrite(relaypin, HIGH);}
 else if ((millis() - cmillis) >= offtime)
    {digitalWrite(relaypin, LOW);}//sends overall signsl to relay to open or break the circuit
    }