MUSICAL INSTRUMENT [week 10]

For this week’s assignment, I decided to a piano-like musical instrument. So, basically there are two ways of controlling it. First, without a photoresistor, buttons will play one music, but with a photoresistor, its frequency change to a high-pitched sound.

Buttons are digital input, while a photoresistor is an analog input. Sound is outputted from the buzzor.

VIDEO:

CODE:

int but1 = 3;
int but2 = 4;
int but3 = 5;
int but4 = 6;

int LDR=A1;
int buzzer = 13;
int sensorValue;
void setup()
{
  //let's declare the button pins as input
  pinMode(but1,INPUT);
  pinMode(but2,INPUT);
  pinMode(but3,INPUT);
  pinMode(but4,INPUT);

  //declare buzzer pin as output
  pinMode(buzzer,OUTPUT);
    Serial.begin(9600);
  
  
}

void loop()
{
  

  // read the value from buttons
  int b1 = digitalRead(but1);
  int b2 = digitalRead(but2);
  int b3 = digitalRead(but3);
  int b4 = digitalRead(but4);

 int sensorvalue= analogRead(LDR);
Serial.println(sensorvalue);
  if (sensorvalue<680){
  if( b1 == 1 ){
     tone(buzzer,300,100);
     delay(100);
     tone(buzzer,300,100);
     delay(100);
     tone(buzzer,300,100);
     delay(100);
     tone(buzzer,300,100);
  }
    if( b2 == 1 ){
     tone(buzzer,400,100);
      delay(100);
      tone(buzzer,400,100);
       delay(100);
       tone(buzzer,400,100);
        delay(100);
        
         delay(100);
  }
    if( b3 == 1 ){
     tone(buzzer,500,100);
  }
    if( b4 == 1 ){
     tone(buzzer,600,100);
  }
  }

   if (sensorvalue > 680){

  if( b1 == 1 ){
     tone(buzzer,700,100);
  }
    if( b2 == 1 ){
     tone(buzzer,800,100);
  }
    if( b3 == 1 ){
     tone(buzzer,900,100);
  }
    if( b4 == 1 ){
     tone(buzzer,1000,100);
  }
  }

    
  }