Parts list for unframed laser harp

Parts List for unframed laser harp:

    Protoboard
    Jumper Wire
    Arduino Uno
    Step motor
    Resistor 220 ohms 1/4W
    ULN2003
    2N2222 TRANSISTOR
    LDR Light Sensor
    MIDI jack
    5k TRIMPOT
    Wine Cork Stopper
    Small Mirror Piece
    Green Laser Pointer
    Green Laser Safety Goggles
    White Gloves
    Power Supply, 5V DC, regulated 1A minimum
    Power Supply, 15V DC, regulated 5A minimum
    Power Supply, 9V DC, regulated 1A minimum

Some pics and first test video.

Fritzing drawing and Arduino Code v5.0

Here is what I have already:

Fritzing drawing:

Arduino Code (v5.0 updated):


 // Ruete's Open Source Laser Harp v5.0
 // Free for home use. Comercial use proibited.
 // v5.0 updates:
 // frame expanded width
 // optmized settings for sensor
 // optimized settings for laser brightness and blanking

 // Circuito MIDI:
 // * digital in 1 conectado ao MIDI jack pin 5 (DO MIDI JACK)
 // * MIDI jack pin 2 conectado ao ground (DO ARDUINO)
 // * MIDI jack pin 4 (DO MIDI JACK) conectado ao +5V (DO ARDUINO) por um resistor de 220-ohm

int buttonPresses = 0; // quantas vezes a nota foi tocada

int LaserState = LOW; // laser "off"
int sensor = 8 ; // valor do sensor calibrado
int delayligado = 5; //minimo 2 para aparecer direito o laser
int delaymexe = 3; //delay entre movimentos minimo 3
int delaydesligado = 0; // minimo 0
long previousMillis = 0; // guarda ultima vez que o laser foi atualizado
const int LaserPin =  7; // define pin do arduino para o laser
long timer = 100; // intervalo que o laser vai pisca em milisegundos

int val = 100;

// define os pins do motor no arduino
int motorPin1 = 8;
int motorPin2 = 9;
int motorPin3 = 10;
int motorPin4 = 11;



int note9 = 0x33;  
int note8 = 0x32;   
int note7 = 0x30; 
int note6 = 0x2E; 
int note5 = 0x2C; 
int note4 = 0x2B; 
int note3 = 0x29; 
int note2 = 0x24; 
int note1 = 0x24;

// setup ------------------------------------------------------------
void setup()
{
 
 
  // do motor:
  pinMode(8, OUTPUT);
  pinMode(9, OUTPUT);
  pinMode(10, OUTPUT);
  pinMode(11, OUTPUT);
 
  // do laser:
  pinMode(LaserPin, OUTPUT);   
   
  // do led:
  pinMode(13, OUTPUT);

  //  ativa frequencia MIDI (baud rate):
  Serial.begin(31250);
}

void noteOn(int cmd, int pitch, int velocity)
  {
  Serial.write(cmd);
  Serial.write(pitch);
  Serial.write(velocity);
  }
 
//-------------------------------------------------------------------------------------------
// inicio do loop ---------------------------------------------------------------------------
void loop()
{
 
 

// movimento horario ---------------------------------------------------------- 

digitalWrite(LaserPin, HIGH);    // liga laser 1
 delay(delayligado);
//********************************************************************************************************************************** 
if ( (analogRead(0) >sensor ) && (buttonPresses == 0) ) //se o sensor esta ativado E  ainda nao começou a tocar entao toca a nota++++++++++++
         
             {
             // faça A -----------------------------------------------------------------------------------------------------------
             digitalWrite(13, HIGH);       // acende o led 
             noteOn(0x90, note1, 0x7F);    // toca a nota no: channel 1 = (0x90), nota = (note), volume = (0x7F)
             buttonPresses++;              // aumenta o valor do buttonPresses (para avisar que a nota ja comecou a tocar)
             }
          
// --------------------------------------------------------------------------------------------------------------------  
else if(analogRead(0) <sensor ) // e se o sensor esta desativado +++++++++++++++++++++++++++++++++++++++++++++++++++++++
         
                  { // //  faça B = silencia a nota
                  digitalWrite(13, LOW);        // desliga o led  
                  noteOn(0x90, note1, 0x00);     // silencia a nota no: channel 1 (0x90), nota = (note), volume de silencio = (0x00)
                  buttonPresses = 0;            // zera o "buttonPresses"
                  }       
//**********************************************************************************************************************************

 digitalWrite(LaserPin, LOW);    // desliga laser 1
 delay(delaydesligado);

//------------------------------------------------------------------- 
  digitalWrite(motorPin1, HIGH); // comanda o motor para mexer para 2
  digitalWrite(motorPin2, LOW);
  digitalWrite(motorPin3, LOW);
  digitalWrite(motorPin4, LOW); 
  delay(delaymexe); // espera o motor
  digitalWrite(motorPin1, LOW); // comanda o motor para mexer para 3
  digitalWrite(motorPin2, HIGH);
  digitalWrite(motorPin3, LOW);
  digitalWrite(motorPin4, LOW); 
  delay(delaymexe); // espera o motor
 
  digitalWrite(LaserPin, HIGH);    // liga laser 2
   delay(delayligado);
//********************************************************************************************************************************** 
if( (analogRead(0) >sensor ) && (buttonPresses == 0) ) //se o sensor esta ativado E  ainda nao começou a tocar entao toca a nota++++++++++++
         
             {
             // faça A -----------------------------------------------------------------------------------------------------------
             digitalWrite(13, HIGH);       // acende o led 
             noteOn(0x90, note2, 0x7F);    // toca a nota no: channel 1 = (0x90), nota = (note), volume = (0x7F)
             buttonPresses++;              // aumenta o valor do buttonPresses (para avisar que a nota ja comecou a tocar)
             }
          
// --------------------------------------------------------------------------------------------------------------------  
else if(analogRead(0) <sensor ) // e se o sensor esta desativado +++++++++++++++++++++++++++++++++++++++++++++++++++++++
         
                  { // //  faça B = silencia a nota
                  digitalWrite(13, LOW);        // desliga o led  
                  noteOn(0x90, note2, 0x00);     // silencia a nota no: channel 1 (0x90), nota = (note), volume de silencio = (0x00)
                  buttonPresses = 0;            // zera o "buttonPresses"
                  }       
//**********************************************************************************************************************************
  digitalWrite(LaserPin, LOW);    // desliga laser 2
 delay(delaydesligado);

//-------------------------------------------------------------------
  digitalWrite(motorPin1, LOW); // comanda o motor para mexer para 4
  digitalWrite(motorPin2, LOW);
  digitalWrite(motorPin3, HIGH);
  digitalWrite(motorPin4, LOW);
  delay(delaymexe); // espera o motor
  digitalWrite(motorPin1, LOW); // comanda o motor para mexer para 5
  digitalWrite(motorPin2, LOW);
  digitalWrite(motorPin3, LOW);
  digitalWrite(motorPin4, HIGH);
  delay(delaymexe); // espera o motor
   
  digitalWrite(LaserPin, HIGH);    // liga laser 3
   delay(delayligado);
//********************************************************************************************************************************** 
if( (analogRead(0) >sensor ) && (buttonPresses == 0) ) //se o sensor esta ativado E  ainda nao começou a tocar entao toca a nota++++++++++++
         
             {
             // faça A -----------------------------------------------------------------------------------------------------------
             digitalWrite(13, HIGH);       // acende o led 
             noteOn(0x90, note3, 0x7F);    // toca a nota no: channel 1 = (0x90), nota = (note), volume = (0x7F)
             buttonPresses++;              // aumenta o valor do buttonPresses (para avisar que a nota ja comecou a tocar)
             }
          
// --------------------------------------------------------------------------------------------------------------------  
else if(analogRead(0) <sensor ) // e se o sensor esta desativado +++++++++++++++++++++++++++++++++++++++++++++++++++++++
         
                  { // //  faça B = silencia a nota
                  digitalWrite(13, LOW);        // desliga o led  
                  noteOn(0x90, note3, 0x00);     // silencia a nota no: channel 1 (0x90), nota = (note), volume de silencio = (0x00)
                  buttonPresses = 0;            // zera o "buttonPresses"
                  }       
//**********************************************************************************************************************************
  digitalWrite(LaserPin, LOW);    // desliga laser 3
 delay(delaydesligado);

//------------------------------------------------------------------
  digitalWrite(motorPin1, HIGH); // comanda o motor para mexer para 6
  digitalWrite(motorPin2, LOW);
  digitalWrite(motorPin3, LOW);
  digitalWrite(motorPin4, LOW);
  delay(delaymexe); // espera o motor
  digitalWrite(motorPin1, LOW); // comanda o motor para mexer para 7
  digitalWrite(motorPin2, HIGH);
  digitalWrite(motorPin3, LOW);
  digitalWrite(motorPin4, LOW);
  delay(delaymexe); // espera o motor

  digitalWrite(LaserPin, HIGH);    // liga laser 4
   delay(delayligado);
//********************************************************************************************************************************** 
if( (analogRead(0) >sensor ) && (buttonPresses == 0) ) //se o sensor esta ativado E  ainda nao começou a tocar entao toca a nota++++++++++++
         
             {
             // faça A -----------------------------------------------------------------------------------------------------------
             digitalWrite(13, HIGH);       // acende o led 
             noteOn(0x90, note4, 0x7F);    // toca a nota no: channel 1 = (0x90), nota = (note), volume = (0x7F)
             buttonPresses++;              // aumenta o valor do buttonPresses (para avisar que a nota ja comecou a tocar)
             }
          
// --------------------------------------------------------------------------------------------------------------------  
else if(analogRead(0) <sensor ) // e se o sensor esta desativado +++++++++++++++++++++++++++++++++++++++++++++++++++++++
         
                  { // //  faça B = silencia a nota
                  digitalWrite(13, LOW);        // desliga o led  
                  noteOn(0x90, note4, 0x00);     // silencia a nota no: channel 1 (0x90), nota = (note), volume de silencio = (0x00)
                  buttonPresses = 0;            // zera o "buttonPresses"
                  }       
//**********************************************************************************************************************************
  digitalWrite(LaserPin, LOW);    // desliga laser 4
 delay(delaydesligado);

//-----------------------------------------------------------------
  digitalWrite(motorPin1, LOW); // comanda o motor para mexer para 8
  digitalWrite(motorPin2, LOW);
  digitalWrite(motorPin3, HIGH);
  digitalWrite(motorPin4, LOW);
  delay(delaymexe); // espera o motor
  digitalWrite(motorPin1, LOW); // comanda o motor para mexer para 9
  digitalWrite(motorPin2, LOW);
  digitalWrite(motorPin3, LOW);
  digitalWrite(motorPin4, HIGH);
  delay(delaymexe); // espera o motor
   
  digitalWrite(LaserPin, HIGH);    // liga laser 5
   delay(delayligado);
//********************************************************************************************************************************** 
if( (analogRead(0) >sensor ) && (buttonPresses == 0) ) //se o sensor esta ativado E  ainda nao começou a tocar entao toca a nota++++++++++++
         
             {
             // faça A -----------------------------------------------------------------------------------------------------------
             digitalWrite(13, HIGH);       // acende o led 
             noteOn(0x90, note5, 0x7F);    // toca a nota no: channel 1 = (0x90), nota = (note), volume = (0x7F)
             buttonPresses++;              // aumenta o valor do buttonPresses (para avisar que a nota ja comecou a tocar)
             }
          
// --------------------------------------------------------------------------------------------------------------------  
else if(analogRead(0) <sensor ) // e se o sensor esta desativado +++++++++++++++++++++++++++++++++++++++++++++++++++++++
         
                  { // //  faça B = silencia a nota
                  digitalWrite(13, LOW);        // desliga o led  
                  noteOn(0x90, note5, 0x00);     // silencia a nota no: channel 1 (0x90), nota = (note), volume de silencio = (0x00)
                  buttonPresses = 0;            // zera o "buttonPresses"
                  }       
//**********************************************************************************************************************************
  digitalWrite(LaserPin, LOW);    // desliga laser 5
 delay(delaydesligado);

//-------------------------------------------------------------------
  digitalWrite(motorPin1, HIGH); // comanda o motor para mexer para 10
  digitalWrite(motorPin2, LOW);
  digitalWrite(motorPin3, LOW);
  digitalWrite(motorPin4, LOW);
  delay(delaymexe); // espera o motor
  digitalWrite(motorPin1, LOW); // comanda o motor para mexer para 11
  digitalWrite(motorPin2, HIGH);
  digitalWrite(motorPin3, LOW);
  digitalWrite(motorPin4, LOW);
  delay(delaymexe); // espera o motor
   
  digitalWrite(LaserPin, HIGH);    // liga laser 6
   delay(delayligado);
 //********************************************************************************************************************************** 
if( (analogRead(0) >sensor ) && (buttonPresses == 0) ) //se o sensor esta ativado E  ainda nao começou a tocar entao toca a nota++++++++++++
         
             {
             // faça A -----------------------------------------------------------------------------------------------------------
             digitalWrite(13, HIGH);       // acende o led 
             noteOn(0x90, note6, 0x7F);    // toca a nota no: channel 1 = (0x90), nota = (note), volume = (0x7F)
             buttonPresses++;              // aumenta o valor do buttonPresses (para avisar que a nota ja comecou a tocar)
             }
          
// --------------------------------------------------------------------------------------------------------------------  
else if(analogRead(0) <sensor ) // e se o sensor esta desativado +++++++++++++++++++++++++++++++++++++++++++++++++++++++
         
                  { // //  faça B = silencia a nota
                  digitalWrite(13, LOW);        // desliga o led  
                  noteOn(0x90, note6, 0x00);     // silencia a nota no: channel 1 (0x90), nota = (note), volume de silencio = (0x00)
                  buttonPresses = 0;            // zera o "buttonPresses"
                  }       
//**********************************************************************************************************************************
  digitalWrite(LaserPin, LOW);    // desliga laser 6
 delay(delaydesligado);

//------------------------------------------------------------------ 
  digitalWrite(motorPin1, LOW); // comanda o motor para mexer para 12
  digitalWrite(motorPin2, LOW);
  digitalWrite(motorPin3, HIGH);
  digitalWrite(motorPin4, LOW);
  delay(delaymexe); // espera o motor
  digitalWrite(motorPin1, LOW); // comanda o motor para mexer para 13
  digitalWrite(motorPin2, LOW);
  digitalWrite(motorPin3, LOW);
  digitalWrite(motorPin4, HIGH);
  delay(delaymexe); // espera o motor
   
  digitalWrite(LaserPin, HIGH);    // liga laser 7
   delay(delayligado);
//********************************************************************************************************************************** 
if( (analogRead(0) >sensor ) && (buttonPresses == 0) ) //se o sensor esta ativado E  ainda nao começou a tocar entao toca a nota++++++++++++
         
             {
             // faça A -----------------------------------------------------------------------------------------------------------
             digitalWrite(13, HIGH);       // acende o led 
             noteOn(0x90, note7, 0x7F);    // toca a nota no: channel 1 = (0x90), nota = (note), volume = (0x7F)
             buttonPresses++;              // aumenta o valor do buttonPresses (para avisar que a nota ja comecou a tocar)
             }
          
// --------------------------------------------------------------------------------------------------------------------  
else if(analogRead(0) <sensor ) // e se o sensor esta desativado +++++++++++++++++++++++++++++++++++++++++++++++++++++++
         
                  { // //  faça B = silencia a nota
                  digitalWrite(13, LOW);        // desliga o led  
                  noteOn(0x90, note7, 0x00);     // silencia a nota no: channel 1 (0x90), nota = (note), volume de silencio = (0x00)
                  buttonPresses = 0;            // zera o "buttonPresses"
                  }       
//**********************************************************************************************************************************
  digitalWrite(LaserPin, LOW);    // desliga laser 7
 delay(delaydesligado);

//------------------------------------------------------------------
  digitalWrite(motorPin1, HIGH); // comanda o motor para mexer para 14
  digitalWrite(motorPin2, LOW);
  digitalWrite(motorPin3, LOW);
  digitalWrite(motorPin4, LOW);
  delay(delaymexe); // espera o motor
  digitalWrite(motorPin1, LOW); // comanda o motor para mexer para 15
  digitalWrite(motorPin2, HIGH);
  digitalWrite(motorPin3, LOW);
  digitalWrite(motorPin4, LOW);
  delay(delaymexe); // espera o motor
   
  digitalWrite(LaserPin, HIGH);    // liga laser 8
   delay(delayligado);
//********************************************************************************************************************************** 
if( (analogRead(0) >sensor ) && (buttonPresses == 0) ) //se o sensor esta ativado E  ainda nao começou a tocar entao toca a nota++++++++++++
         
             {
             // faça A -----------------------------------------------------------------------------------------------------------
             digitalWrite(13, HIGH);       // acende o led 
             noteOn(0x90, note8, 0x7F);    // toca a nota no: channel 1 = (0x90), nota = (note), volume = (0x7F)
             buttonPresses++;              // aumenta o valor do buttonPresses (para avisar que a nota ja comecou a tocar)
             }
          
// --------------------------------------------------------------------------------------------------------------------  
else if(analogRead(0) <sensor ) // e se o sensor esta desativado +++++++++++++++++++++++++++++++++++++++++++++++++++++++
         
                  { // //  faça B = silencia a nota
                  digitalWrite(13, LOW);        // desliga o led  
                  noteOn(0x90, note8, 0x00);     // silencia a nota no: channel 1 (0x90), nota = (note), volume de silencio = (0x00)
                  buttonPresses = 0;            // zera o "buttonPresses"
                  }       
//**********************************************************************************************************************************
  digitalWrite(LaserPin, LOW);    // desliga laser 8
 delay(delaydesligado);

//------------------------------------------------------------------
  digitalWrite(motorPin1, LOW); // comanda o motor para mexer para 16
  digitalWrite(motorPin2, LOW);
  digitalWrite(motorPin3, HIGH);
  digitalWrite(motorPin4, LOW);
  delay(delaymexe); // espera o motor
  digitalWrite(motorPin1, LOW); // comanda o motor para mexer para 17
  digitalWrite(motorPin2, LOW);
  digitalWrite(motorPin3, LOW);
  digitalWrite(motorPin4, HIGH);
  delay(delaymexe); // espera o motor
   
  digitalWrite(LaserPin, HIGH);    // liga laser 9
   delay(delayligado);
//**********************************************************************************************************************************  ** 
if( (analogRead(0) >sensor ) && (buttonPresses == 0) ) //se o sensor esta ativado E  ainda nao começou a tocar entao toca a nota++++++++++++
         
             {
             // faça A -----------------------------------------------------------------------------------------------------------
             digitalWrite(13, HIGH);       // acende o led 
             noteOn(0x90, note9, 0x7F);    // toca a nota no: channel 1 = (0x90), nota = (note), volume = (0x7F)
             buttonPresses++;              // aumenta o valor do buttonPresses (para avisar que a nota ja comecou a tocar)
             }
          
// --------------------------------------------------------------------------------------------------------------------  
else if(analogRead(0) <sensor ) // e se o sensor esta desativado +++++++++++++++++++++++++++++++++++++++++++++++++++++++
         
                  { // //  faça B = silencia a nota
                  digitalWrite(13, LOW);        // desliga o led  
                  noteOn(0x90, note9, 0x00);     // silencia a nota no: channel 1 (0x90), nota = (note), volume de silencio = (0x00)
                  buttonPresses = 0;            // zera o "buttonPresses"
                  }       
//**********************************************************************************************************************************


  digitalWrite(LaserPin, LOW);    // desliga laser 9
 delay(delaydesligado);

//-----------------------------------------------------------------------------
// movimento anti-horario ----------------------------------------------------- 

//------------------------------------------------------------------
  digitalWrite(motorPin1, LOW); // comanda o motor para mexer para 16
  digitalWrite(motorPin2, LOW);
  digitalWrite(motorPin3, HIGH);
  digitalWrite(motorPin4, LOW);
  delay(delaymexe); // espera o motor
  digitalWrite(motorPin1, LOW); // comanda o motor para mexer para 15
  digitalWrite(motorPin2, HIGH);
  digitalWrite(motorPin3, LOW);
  digitalWrite(motorPin4, LOW);
  delay(delaymexe); // espera o motor
   
  digitalWrite(LaserPin, HIGH);    // liga laser 8
   delay(delayligado);
//********************************************************************************************************************************** 
if( (analogRead(0) >sensor ) && (buttonPresses == 0) ) //se o sensor esta ativado E  ainda nao começou a tocar entao toca a nota++++++++++++
         
             {
             // faça A -----------------------------------------------------------------------------------------------------------
             digitalWrite(13, HIGH);       // acende o led 
             noteOn(0x90, note8, 0x7F);    // toca a nota no: channel 1 = (0x90), nota = (note), volume = (0x7F)
             buttonPresses++;              // aumenta o valor do buttonPresses (para avisar que a nota ja comecou a tocar)
             }
          
// --------------------------------------------------------------------------------------------------------------------  
else if(analogRead(0) <sensor ) // e se o sensor esta desativado +++++++++++++++++++++++++++++++++++++++++++++++++++++++
         
                  { // //  faça B = silencia a nota
                  digitalWrite(13, LOW);        // desliga o led  
                  noteOn(0x90, note8, 0x00);     // silencia a nota no: channel 1 (0x90), nota = (note), volume de silencio = (0x00)
                  buttonPresses = 0;            // zera o "buttonPresses"
                  }       
//**********************************************************************************************************************************
  digitalWrite(LaserPin, LOW);    // desliga laser 8
 delay(delaydesligado);

//------------------------------------------------------------------
  digitalWrite(motorPin1, HIGH); // comanda o motor para mexer para 14
  digitalWrite(motorPin2, LOW);
  digitalWrite(motorPin3, LOW);
  digitalWrite(motorPin4, LOW);
  delay(delaymexe); // espera o motor
  digitalWrite(motorPin1, LOW); // comanda o motor para mexer para 13
  digitalWrite(motorPin2, LOW);
  digitalWrite(motorPin3, LOW);
  digitalWrite(motorPin4, HIGH);
  delay(delaymexe); // espera o motor
   
  digitalWrite(LaserPin, HIGH);    // liga laser 7
   delay(delayligado);
//********************************************************************************************************************************** 
if( (analogRead(0) >sensor ) && (buttonPresses == 0) ) //se o sensor esta ativado E  ainda nao começou a tocar entao toca a nota++++++++++++
         
             {
             // faça A -----------------------------------------------------------------------------------------------------------
             digitalWrite(13, HIGH);       // acende o led 
             noteOn(0x90, note7, 0x7F);    // toca a nota no: channel 1 = (0x90), nota = (note), volume = (0x7F)
             buttonPresses++;              // aumenta o valor do buttonPresses (para avisar que a nota ja comecou a tocar)
             }
          
// --------------------------------------------------------------------------------------------------------------------  
else if(analogRead(0) <sensor ) // e se o sensor esta desativado +++++++++++++++++++++++++++++++++++++++++++++++++++++++
         
                  { // //  faça B = silencia a nota
                  digitalWrite(13, LOW);        // desliga o led  
                  noteOn(0x90, note7, 0x00);     // silencia a nota no: channel 1 (0x90), nota = (note), volume de silencio = (0x00)
                  buttonPresses = 0;            // zera o "buttonPresses"
                  }       
//**********************************************************************************************************************************
  digitalWrite(LaserPin, LOW);    // desliga laser 7
 delay(delaydesligado);

//------------------------------------------------------------------
  digitalWrite(motorPin1, LOW); // comanda o motor para mexer para 13
  digitalWrite(motorPin2, LOW);
  digitalWrite(motorPin3, HIGH);
  digitalWrite(motorPin4, LOW);
  delay(delaymexe); // espera o motor
  digitalWrite(motorPin1, LOW); // comanda o motor para mexer para 12
  digitalWrite(motorPin2, HIGH);
  digitalWrite(motorPin3, LOW);
  digitalWrite(motorPin4, LOW);
  delay(delaymexe); // espera o motor
   
  digitalWrite(LaserPin, HIGH);    // liga laser 6
   delay(delayligado);
//********************************************************************************************************************************** 
if( (analogRead(0) >sensor ) && (buttonPresses == 0) ) //se o sensor esta ativado E  ainda nao começou a tocar entao toca a nota++++++++++++
         
             {
             // faça A -----------------------------------------------------------------------------------------------------------
             digitalWrite(13, HIGH);       // acende o led 
             noteOn(0x90, note6, 0x7F);    // toca a nota no: channel 1 = (0x90), nota = (note), volume = (0x7F)
             buttonPresses++;              // aumenta o valor do buttonPresses (para avisar que a nota ja comecou a tocar)
             }
          
// --------------------------------------------------------------------------------------------------------------------  
else if(analogRead(0) <sensor ) // e se o sensor esta desativado +++++++++++++++++++++++++++++++++++++++++++++++++++++++
         
                  { // //  faça B = silencia a nota
                  digitalWrite(13, LOW);        // desliga o led  
                  noteOn(0x90, note6, 0x00);     // silencia a nota no: channel 1 (0x90), nota = (note), volume de silencio = (0x00)
                  buttonPresses = 0;            // zera o "buttonPresses"
                  }       
//**********************************************************************************************************************************
  digitalWrite(LaserPin, LOW);    // desliga laser 6
 delay(delaydesligado);

//------------------------------------------------------------------
  digitalWrite(motorPin1, HIGH); // comanda o motor para mexer para 11
  digitalWrite(motorPin2, LOW);
  digitalWrite(motorPin3, LOW);
  digitalWrite(motorPin4, LOW);
  delay(delaymexe); // espera o motor
  digitalWrite(motorPin1, LOW); // comanda o motor para mexer para 10
  digitalWrite(motorPin2, LOW);
  digitalWrite(motorPin3, LOW);
  digitalWrite(motorPin4, HIGH);
  delay(delaymexe); // espera o motor
   
  digitalWrite(LaserPin, HIGH);    // liga laser 5
   delay(delayligado);
//********************************************************************************************************************************** 
if( (analogRead(0) >sensor ) && (buttonPresses == 0) ) //se o sensor esta ativado E  ainda nao começou a tocar entao toca a nota++++++++++++
         
             {
             // faça A -----------------------------------------------------------------------------------------------------------
             digitalWrite(13, HIGH);       // acende o led 
             noteOn(0x90, note5, 0x7F);    // toca a nota no: channel 1 = (0x90), nota = (note), volume = (0x7F)
             buttonPresses++;              // aumenta o valor do buttonPresses (para avisar que a nota ja comecou a tocar)
             }
          
// --------------------------------------------------------------------------------------------------------------------  
else if(analogRead(0) <sensor ) // e se o sensor esta desativado +++++++++++++++++++++++++++++++++++++++++++++++++++++++
         
                  { // //  faça B = silencia a nota
                  digitalWrite(13, LOW);        // desliga o led  
                  noteOn(0x90, note5, 0x00);     // silencia a nota no: channel 1 (0x90), nota = (note), volume de silencio = (0x00)
                  buttonPresses = 0;            // zera o "buttonPresses"
                  }       
//**********************************************************************************************************************************
  digitalWrite(LaserPin, LOW);    // desliga laser 5
 delay(delaydesligado);

//------------------------------------------------------------------ 
  digitalWrite(motorPin1, LOW); // comanda o motor para mexer para 9
  digitalWrite(motorPin2, LOW);
  digitalWrite(motorPin3, HIGH);
  digitalWrite(motorPin4, LOW);
  delay(delaymexe); // espera o motor
  digitalWrite(motorPin1, LOW); // comanda o motor para mexer para 8
  digitalWrite(motorPin2, HIGH);
  digitalWrite(motorPin3, LOW);
  digitalWrite(motorPin4, LOW);
  delay(delaymexe); // espera o motor
   
  digitalWrite(LaserPin, HIGH);    // liga laser 4
   delay(delayligado);
//********************************************************************************************************************************** 
if( (analogRead(0) >sensor ) && (buttonPresses == 0) ) //se o sensor esta ativado E  ainda nao começou a tocar entao toca a nota++++++++++++
         
             {
             // faça A -----------------------------------------------------------------------------------------------------------
             digitalWrite(13, HIGH);       // acende o led 
             noteOn(0x90, note4, 0x7F);    // toca a nota no: channel 1 = (0x90), nota = (note), volume = (0x7F)
             buttonPresses++;              // aumenta o valor do buttonPresses (para avisar que a nota ja comecou a tocar)
             }
          
// --------------------------------------------------------------------------------------------------------------------  
else if(analogRead(0) <sensor ) // e se o sensor esta desativado +++++++++++++++++++++++++++++++++++++++++++++++++++++++
         
                  { // //  faça B = silencia a nota
                  digitalWrite(13, LOW);        // desliga o led  
                  noteOn(0x90, note4, 0x00);     // silencia a nota no: channel 1 (0x90), nota = (note), volume de silencio = (0x00)
                  buttonPresses = 0;            // zera o "buttonPresses"
                  }       
//**********************************************************************************************************************************
  digitalWrite(LaserPin, LOW);    // desliga laser 4
 delay(delaydesligado);

//------------------------------------------------------------------
  digitalWrite(motorPin1, HIGH); // comanda o motor para mexer para 7
  digitalWrite(motorPin2, LOW);
  digitalWrite(motorPin3, LOW);
  digitalWrite(motorPin4, LOW);
  delay(delaymexe); // espera o motor
  digitalWrite(motorPin1, LOW); // comanda o motor para mexer para 6
  digitalWrite(motorPin2, LOW);
  digitalWrite(motorPin3, LOW);
  digitalWrite(motorPin4, HIGH);
  delay(delaymexe); // espera o motor
   
  digitalWrite(LaserPin, HIGH);    // liga laser 3
   delay(delayligado);
//********************************************************************************************************************************** 
if( (analogRead(0) >sensor ) && (buttonPresses == 0) ) //se o sensor esta ativado E  ainda nao começou a tocar entao toca a nota++++++++++++
         
             {
             // faça A -----------------------------------------------------------------------------------------------------------
             digitalWrite(13, HIGH);       // acende o led 
             noteOn(0x90, note3, 0x7F);    // toca a nota no: channel 1 = (0x90), nota = (note), volume = (0x7F)
             buttonPresses++;              // aumenta o valor do buttonPresses (para avisar que a nota ja comecou a tocar)
             }
          
// --------------------------------------------------------------------------------------------------------------------  
else if(analogRead(0) <sensor ) // e se o sensor esta desativado +++++++++++++++++++++++++++++++++++++++++++++++++++++++
         
                  { // //  faça B = silencia a nota
                  digitalWrite(13, LOW);        // desliga o led  
                  noteOn(0x90, note3, 0x00);     // silencia a nota no: channel 1 (0x90), nota = (note), volume de silencio = (0x00)
                  buttonPresses = 0;            // zera o "buttonPresses"
                  }       
//**********************************************************************************************************************************
  digitalWrite(LaserPin, LOW);    // desliga laser 3
 delay(delaydesligado);

//-------------------------------------------------------------------
  digitalWrite(motorPin1, LOW); // comanda o motor para mexer para 5
  digitalWrite(motorPin2, LOW);
  digitalWrite(motorPin3, HIGH);
  digitalWrite(motorPin4, LOW);
  delay(delaymexe); // espera o motor
  digitalWrite(motorPin1, LOW); // comanda o motor para mexer para 4
  digitalWrite(motorPin2, HIGH);
  digitalWrite(motorPin3, LOW);
  digitalWrite(motorPin4, LOW);
  delay(delaymexe); // espera o motor
   
  digitalWrite(LaserPin, HIGH);    // liga laser 2
   delay(delayligado);
//********************************************************************************************************************************** 
if( (analogRead(0) >sensor ) && (buttonPresses == 0) ) //se o sensor esta ativado E  ainda nao começou a tocar entao toca a nota++++++++++++
         
             {
             // faça A -----------------------------------------------------------------------------------------------------------
             digitalWrite(13, HIGH);       // acende o led 
             noteOn(0x90, note2, 0x7F);    // toca a nota no: channel 1 = (0x90), nota = (note), volume = (0x7F)
             buttonPresses++;              // aumenta o valor do buttonPresses (para avisar que a nota ja comecou a tocar)
             }
          
// --------------------------------------------------------------------------------------------------------------------  
else if(analogRead(0) <sensor ) // e se o sensor esta desativado +++++++++++++++++++++++++++++++++++++++++++++++++++++++
         
                  { // //  faça B = silencia a nota
                  digitalWrite(13, LOW);        // desliga o led  
                  noteOn(0x90, note2, 0x00);     // silencia a nota no: channel 1 (0x90), nota = (note), volume de silencio = (0x00)
                  buttonPresses = 0;            // zera o "buttonPresses"
                  }       
//**********************************************************************************************************************************
  digitalWrite(LaserPin, LOW);    // desliga laser 2
 delay(delaydesligado);

//------------------------------------------------------------------
  digitalWrite(motorPin1, HIGH); // comanda o motor para mexer para 3
  digitalWrite(motorPin2, LOW);
  digitalWrite(motorPin3, LOW);
  digitalWrite(motorPin4, LOW);
  delay(delaymexe); // espera o motor
  digitalWrite(motorPin1, LOW); // comanda o motor para mexer para 2
  digitalWrite(motorPin2, LOW);
  digitalWrite(motorPin3, LOW);
  digitalWrite(motorPin4, HIGH);
  delay(delaymexe); // espera o motor
 

    
}
// final do loop para mexer o motor e ligar/desligar laser (volta para o começo do loop)-----
//-------------------------------------------------------------------------------------------

Jean Michel Jarre Live in Concert using his Laser Harp to play Rendevous II song.

Here is an example of DJs using a Laser Harp (sold by a company I am not affiliated with)

Here is a picture of my Laser Harp v1 (framed version)

It is a framed Laser Harp I developed using and arduino, a green laser, lots of passion and googling!

If you want to build a Framed Laser Harp you can google for Stephen Hobley and you will find plenty of info about that..

Now if you want to make a Frameless Laser Harp like the one Jean Michel Jarre 's used to play Rendezvous 2  Live in concert at his Europe Tour 2011., it is a lot more difficult...

I am currently working on this project and almost done with it.

Since technology has developed so much it is now possible to build your own homemade DIY Frameless Laser Harp.


I saw a couple of adds on the internet selling Frameless Laser Harps for US$1.200,00 and up (only the controller and sensor part). Then I would have to buy an ILDA green laser projector also. And then pay around 100% more for import taxes on top of all this.



That´s when I decided to give it a try at building it myself!

Turns out Laser Harp v2 (unframed) is almost completed.

Bookmark this website, and come back soon as I will post the complete schematics and programing here so you will be able to make yourself one too (without being a technical geek).





Enjoy!