Arduino Air Drums. Bateria con Arduino

void noteOn(byte channel, byte note, byte velocity)
{

  midiMsg(channel+0x90, note, velocity);
}
void midiMsg(byte cmd, byte data1, byte data2)
  {Serial.write(cmd);

  Serial.write(data1);
  Serial.write(data2);
  }
const int numSnareReadings = 10;
const int numHighHatReadings = 2;
const int numKickReadings = 5;
const int numCrashReadings = 10;

int snareReadings[numSnareReadings];
int snareIndex = 0;
int snareTotal = 0;
int snareAverage = 0;
int currentSnareState;
int switchSnareState = 0;

int highHatReadings[numHighHatReadings];
int highHatIndex = 0;
int highHatTotal = 0;
int highHatAverage = 0;
int currentHighHatState;
int switchHighHatState = 0;

int crashReadings[numCrashReadings];
int crashIndex = 0;
int crashTotal = 0;
int crashAverage = 0;
int currentCrashState;
int switchCrashState = 0;

int kickReadings[numKickReadings];
int kickIndex = 0;
int kickTotal = 0;
int kickAverage = 0;
int currentKickState;
int switchKickState = 0;

long previousMillis1 = 0;
long previousMillis2 = 0;
long previousMillis3 = 0;
long previousMillis4 = 0;

long interval1 = 100;
long interval2 = 100;
long interval3 = 100;
long interval4 = 100;

void setup()
  {
    Serial.begin(36000);
    for (int thisReading = 0; thisReading < numSnareReadings; thisReading++)
    snareReadings[thisReading] = 0;

    for (int thisReading = 0; thisReading < numHighHatReadings; thisReading++)
    highHatReadings[thisReading] = 0;

    for (int thisReading = 0; thisReading < numKickReadings; thisReading++)
    kickReadings[thisReading] = 0;

    for (int thisReading = 0; thisReading < numKickReadings; thisReading++)
    crashReadings[thisReading] = 0;
  }

void loop()
{
   unsigned long currentMillis = millis();

  snareAverage = snareTotal / numSnareReadings;
  snareTotal = snareTotal - snareReadings[snareIndex];
  snareReadings[snareIndex] = analogRead(A0);
  snareTotal = snareTotal + snareReadings[snareIndex];
  snareIndex = snareIndex + 1;

  if(snareIndex >= numSnareReadings)
    snareIndex = 0;

    snareAverage = snareTotal / numSnareReadings;

   currentSnareState = snareAverage;
     if( currentSnareState > 500 && (currentMillis - previousMillis1) > interval1)
       {

         previousMillis1 = currentMillis;
         noteOn(9, 38, 120);
       }

  highHatAverage = highHatTotal / numHighHatReadings;
  highHatTotal = highHatTotal - highHatReadings[highHatIndex];
  highHatReadings[highHatIndex] = analogRead(A1);
  highHatTotal = highHatTotal + highHatReadings[highHatIndex];
  highHatIndex = highHatIndex + 1;

  if(highHatIndex >= numHighHatReadings)
    highHatIndex = 0;

    highHatAverage = highHatTotal / numHighHatReadings;

   currentHighHatState = highHatAverage;
     if( currentHighHatState > 550 && currentHighHatState < 700 && (currentMillis - previousMillis2) > interval2 )
       {
         previousMillis2 = currentMillis;
         noteOn(9, 46, 120);

         }

  kickAverage = kickTotal / numKickReadings;
  kickTotal = kickTotal - kickReadings[kickIndex];
  kickReadings[kickIndex] = analogRead(A2);
  kickTotal = kickTotal + kickReadings[kickIndex];
  kickIndex = kickIndex + 1;

  if(kickIndex >= numKickReadings)
    kickIndex = 0;

    kickAverage = kickTotal / numKickReadings;

   currentKickState = kickAverage;
     if( currentKickState > 360 && (currentMillis - previousMillis3) > interval3 )
       {
         previousMillis3 = currentMillis;
         noteOn(9, 35, 120);

         }

  crashAverage = crashTotal / numCrashReadings;
  crashTotal = crashTotal - crashReadings[crashIndex];
  //crashReadings[crashIndex] = analogRead(A1);
  crashTotal = crashTotal + crashReadings[crashIndex];
  crashIndex = crashIndex + 1;

  if(crashIndex >= numCrashReadings)
    crashIndex = 0;

    crashAverage = crashTotal / numCrashReadings;

   currentCrashState = crashAverage;
     if( currentCrashState > 700 && (currentMillis - previousMillis4) > interval2 )
       {
         previousMillis4 = currentMillis;
         noteOn(9, 55, 120);

         }

}

Codigo fuente:

My Air Drums based on Arduino platform, MIDI device, 3 accelerometers, light sensor, USB hub, havaianas sandals & 2 hand rakes

Schematics & code located in the following links:

http://codetidy.com/1760/

http://www.maayanmigdal.com/air-drums…

Some guys re-created my project and uploaded more details for creating this project check it out: http://blimp12.blogspot.com/

The work made in technology course, in the Bezalel Academy of Arts and Design
Instructors: Ytai Ben-Tsvi, Shachar Geiger , Itay Galim