Ableton midi -> Arduino & Mozzi Library

Other Hardware Audio
1

I haven't used an arduino in a long time so I'm not too familiar with the language anymore.
I've been playing around with Mozzi's library and some pots generating some sound, I want to be able to play a midi file from ableton, which changes the pitch of one of the variables in the Mozzi code. Such as replacing the pitch pot with midi from ableton. I've setup a virtual midi port on mac. And I ran some arduino midi example code to blink an LED on recieving midi input and that works. Although I don't know where to start when it comes to using that Midi info from Ableton to an arduino and change the pitch of a Mozzi Library sketch.

2

I have the following code, which should blink an LED when receiving any midi note. And some other code which should change the frequency of the Mozzi Library sketch. The LED blinks as it should however, as soon as the arduino receives any midi the sound cuts out and the LED keeps blinking.
Here is my code:

#include <MozziGuts.h>
#include <Oscil.h> // oscillator 
#include <tables/sin2048_int8.h> // table for Oscils to play
#include <Smooth.h>
#define CONTROL_RATE 128 

const int PIEZO_PIN = 3;  // set the analog input pin for the piezo 
const byte PWMDAC1pin = 9; // PWM DAC, only pins 9 and 10 are allowed
const byte PWMDAC2pin = 10; // example using second DAC
const byte period = 32; // for 8 bit DAC 
 

byte commandByte;
byte noteByte;
byte velocityByte;

byte noteOn = 144;
// use: Oscil <table_size, update_rate> oscilName (wavetable), look in .h file of table #included above
Oscil <SIN2048_NUM_CELLS, AUDIO_RATE> aSin(SIN2048_DATA);


void setup(){
  pinMode(13,OUTPUT);
  digitalWrite(13,LOW);
  //Serial.begin(9600); // for Teensy 3.1, beware printout can cause glitches
  Serial.begin(115200); // set up the Serial output so we can look at the piezo values // set up the Serial output so we can look at the piezo values
  startMozzi(CONTROL_RATE); // :)) use the control rate defined above
}


void updateControl(){
  // read the piezo
  do{
      if (Serial.available()){
          commandByte = Serial.read();//read first byte
          noteByte = Serial.read();//read next byte
          velocityByte = Serial.read();//read final byte
          if (commandByte == noteOn){//if note on message
            if ( velocityByte > 0){
            int piezo_value = noteByte; // value is 0-1023 
            int frequency = piezo_value*3; // calibrate
            aSin.setFreq(frequency);
            digitalWrite(13,HIGH);//turn on led
                pinMode(5,OUTPUT);

            }
          }
        else if(commandByte == 128){
            digitalWrite(13,LOW);
            digitalWrite(9,LOW);
            pinMode(5,OUTPUT);
        }
      }

  // set the frequency
  }
  while (Serial.available() > 2);//when at least three bytes available  
}


int updateAudio(){
  return aSin.next();
}


void loop(){
    updateControl();
      audioHook();

  delay(1);
 //digitalWrite(13,LOW);//turn led off
}
3

@casperround64, please do not cross-post. Other thread removed. Threads merged.