Interfacing the Arduino to Max/MSP

• A number of options for communicating between an Arduino and Max/MSP are provided in the Arduino playground: Max/MSP

• In general, this is accomplished using the Serial functionality in the Arduino and the serial object in Max.

• The following Arduino code and Max patch can be used to read the values from a single analog pin into Max.

• NOTE: it is absolutely necessary that the serial baud rate set in the Arduino code be the same as the rate specified to the serial object in Max. Also, you will need to unset the serial port in Max when uploading a new program to the Arduino board.

  int fsrPin = 1;
  
  void setup() 
  { 
    Serial.begin( 9600 ); 
  }
   
  void loop() 
  {
  
    Serial.println( analogRead( fsrPin ) );
  
    delay( 100 );
  }
  

  

• For two inputs, the following Max patch and Arduino code provide a starting point. Note that the values are separated by a space and each set of two values is delimited by a line break:

  void setup() 
  { 
    Serial.begin( 115200 ); 
  }
   
  void loop() 
  {
    // Read from two analog pins and put a space between values.
    for ( int i=2; i<4; i++) {
      Serial.print( analogRead(i) );
      Serial.print(' ');
    }
    Serial.println();
  
    delay( 100 );  // Delay a bit.
  }