Description

A musical instrument that plays musical tracks and flashes LEDs depending upon which switch is pressed.  Uses processing to play music. 

Materials

• Plastic waterbottle
• coffee stirrers
• 5 Leds
• 5 10k resistors
• 5+ switches
• Balsa Wood
• Paper towel inner roll
• Blue tape 
• Arduino & breadboard

Arduino Code

 // define input pins for each switch
int switchOne = 2; //Pins 0 and 1 are used for Transmit/Receive and don't work for input
int switchTwo = 4;  //pin3 appears to be BAD
int switchThree = 5;
int switchFour= 7; //so does pin6
int switchFive = 8;
// define variables to store the value coming from the switches
int valOne = LOW;     
int valTwo = LOW;
int valThree = LOW;
int valFour = LOW;
int valFive = LOW;

void setup() {
// set the input mode for each pin
  pinMode(switchOne, INPUT);
  pinMode(switchTwo, INPUT);
  pinMode(switchThree, INPUT);
  pinMode(switchFour, INPUT);
  pinMode(switchFive, INPUT);
  Serial.begin(9600);
}
void loop() {
  valOne = digitalRead(switchOne); // read the value from the sensor (High or Low)
  if(valOne==HIGH) {
   Serial.print(1);
  }
  valTwo = digitalRead(switchTwo); // read the value from switch

  if(valTwo==HIGH) {
      Serial.print(2);
  }
  valThree = digitalRead(switchThree); // read the value from switch

  if(valThree==HIGH) {
      Serial.print(3);
  }
  valFour = digitalRead(switchFour); // read the value from switch
  if(valFour==HIGH) {
      Serial.print(4);
  }
  valFive = digitalRead(switchFive); // read the value from switch
  if(valFive==HIGH) {
      Serial.print(5);
  }
  delay(100);
}

Picture