Traktor Pro Arduino Midi Controller [Not working]


i would like to create my own simple midi controller for the dj software traktor pro. After some minutes i implemented a little sketch:

void setup() {        
  pinMode(13, OUTPUT);    

void loop() {
  int sensorValue = analogRead(A0);
  int realVal = map(sensorValue, 0, 1023, 0, 20);
  if(realVal >= 10) {
    digitalWrite(13, HIGH);  
    noteOn(0x90, 0x1E, 0x45);
    digitalWrite(13, LOW);  

void noteOn(int cmd, int pitch, int velocity) {
  Serial.print(cmd, BYTE);
  Serial.print(pitch, BYTE);
  Serial.print(velocity, BYTE);

I use Window 7 and Arduino Duemilanove. SensorValue contains the value from a cheap force sensitive resistor.

Everything works fine and when i press my sensor hard enough a midi message will be transmitted (Serial monitor).

I use MidiYoke and Serial Midi Converter to get a midi device for traktor. When I hit the "Lean Button" in traktor and then press the, nothing happens. I tried every possible combination but i don't get it to work :frowning:

What i'm doing wrong? Can someone help me please?


Maybe there is a NoteOff() needed?

I tried:

//midi(144, 50, 50);

//midi(128, 50, 50);

but nothing happens :frowning:

midi = noteOn();

What did i miss? :frowning:

I found it!

You have to mod the FTDI USB Driver! Enjoy! :slight_smile:

What did i miss?