week05.md

LilyPad Buzzer Example, modified by Loes Bogers
SparkFun Electronics

This example code shows how to hook up a LilyPad Buzzer to play a simple song
using the tone() function and setting variables for each note.

Buzzer connections:
   * + pin to 5
   * - to -

const int buttonPin = 8;     // the number of the pushbutton pin
const int ledPin =  10;      // the number of the LED pin > has PWM
const int buzzerPin = 5;    // the number of the buzzer pin
int delayTime = 100;
int delayTime2 = 150;
int delayTime3 = 200;


// Notes and their frequencies
const int C = 1046;
const int D = 1175;
const int E = 1319;
const int F = 1397;
const int G = 1568;
const int A = 1760;
const int B = 1976;
const int C1 = 2093;
const int D1 = 2349;

int buttonState = 0;         // variable for reading the pushbutton status

void setup() {
  // initialize the LED pin as an output:
  pinMode(ledPin, OUTPUT);
  // initialize the pushbutton pin as an input:
  pinMode(buttonPin, INPUT);
  // Set the buzzer pin as an OUTPUT
  pinMode(buzzerPin, OUTPUT);
}

void loop() {
  // read the state of the pushbutton value:
  buttonState = digitalRead(buttonPin);

  // check if the pushbutton is pressed. If it is, the buttonState is HIGH:
  if (buttonState == LOW) {

      //To use LED uncomment sentence below
     digitalWrite(ledPin, LOW);

     //play notes (delayTime in this case is how long it's played)
     tone(buzzerPin, C);
     delay(delayTime);
     tone(buzzerPin, E);
     delay(delayTime2);
//     tone(buzzerPin, C);
//     delay(delayTime);
//     tone(buzzerPin, G);
//     delay(delayTime3);
//     tone(buzzerPin, F);
//     delay(delayTime);
  }else{
//stop sound
     noTone(buzzerPin);
     digitalWrite(ledPin, HIGH);
  }
}