Arduino_program.ino

//
//             SPACEAPPS 2019
//             A.N.E.M.O.I.
//

//Variables to buzzer_song
#define c3 7634
#define d3 6803
#define e3 6061
#define f3 5714
#define g3 5102
#define a3 4545
#define b3 4049
#define c4 3816 // 261 Hz
#define d4 3401 // 294 Hz
#define e4 3030 // 329 Hz
#define f4 2865 // 349 Hz
#define g4 2551 // 392 Hz
#define a4 2272 // 440 Hz
#define a4s 2146
#define b4 2028 // 493 Hz
#define c5 1912 // 523 Hz
#define d5 1706
#define d5s 1608
#define e5 1517 // 659 Hz
#define f5 1433 // 698 Hz
#define g5 1276
#define a5 1136
#define a5s 1073
#define b5 1012
#define c6 955

#define R 0 // Define a special note, ‘R’, to represent a rest

// Melody 1: Star Wars Imperial March

int melody1[] = {a4, R, a4, R, a4, R, f4, R, c5, R, a4, R, f4, R, c5, R, a4, R, e5, R, e5, R, e5, R, f5, R, c5, R, g5, R, f5, R, c5, R, a4, R};
int beats1[] = {50, 20, 50, 20, 50, 20, 40, 5, 20, 5, 60, 10, 40, 5, 20, 5, 60, 80, 50, 20, 50, 20, 50, 20, 40, 5, 20, 5, 60, 10, 40, 5, 20, 5, 60, 40};

// Melody 2: Star Wars Theme
int melody2[] = {f4, f4, f4, a4s, f5, d5s, d5, c5, a5s, f5, d5s, d5, c5, a5s, f5, d5s, d5, d5s, c5};
int beats2[] = {21, 21, 21, 128, 128, 21, 21, 21, 128, 64, 21, 21, 21, 128, 64, 21, 21, 21, 128};

int MAX_COUNT = sizeof(melody1) / 2;
long tempo = 10000;
int pause = 1000;
int rest_count = 50;
int toneM = 0;
int beat = 0;
long duration = 0;
int potVal = 0;
int speakerOut = 12;
// Variables to buzzer_song

int dataSensor;       //datosdel pin analogico
const int MQ135 = A0; //analoge Input
//int digital=4;
int T = 2000; //Time
int rojo = 0;
int amarillo = 3;
int verde = 5;
int buzzer = 12;

void setup()
{
    Serial.begin(9600);
    pinMode(8, OUTPUT);  //azul
    pinMode(9, OUTPUT);  //Rojo
    pinMode(11, OUTPUT); //verde
    pinMode(buzzer, OUTPUT);
}

void loop()
{

    dataSensor = (analogRead(MQ135)); //Sensor input

    if (dataSensor <= 70)
    {
        Serial.print("Good: ");
        Serial.println(verde);
        RGB(0, 255, 0);
    }
    if (dataSensor > 70 && dataSensor <= 100)
    {
        Serial.print("Less: ");
        Serial.println(amarillo);
        RGB(255, 120, 0);
    }

    if (dataSensor > 100)
    {
        Serial.print("Bad air: ");
        Serial.println(rojo);
        RGB(255, 0, 0);
        while (dataSensor > 17)
        {
            dataSensor = (analogRead(MQ135)); //Entrada sensor
            buzzer_song();
        }
    }
}
void RGB(int rojo, int verde, int azul)
{
    analogWrite(9, rojo);   //R
    analogWrite(10, verde); //G
    analogWrite(8, azul);   //B
}

void buzzer_song()
{

    //Melody1
    for (int i = 0; i < MAX_COUNT; i++)
    {
        toneM = melody1[i];
        beat = beats1[i];
        duration = beat * tempo;
        playTone();
        delayMicroseconds(pause);
    }
}

void playTone()
{

    long elapsed_time = 0;
    if (toneM > 0)
    {
        while (elapsed_time < duration && dataSensor > 17)
        {
            digitalWrite(buzzer, HIGH);
            delayMicroseconds(toneM / 2);
            digitalWrite(buzzer, LOW);
            delayMicroseconds(toneM / 2);
            elapsed_time += (toneM);
            dataSensor = (analogRead(MQ135)); //Entrada sensor
        }
    }
    else
    {
        for (int j = 0; j < rest_count; j++)
        {
            delayMicroseconds(duration);
        }
    }
}