arduivis

Pure Data Model #6: Multiple Feedbacks

Abstract

This is an example of to read sliders from PD. An Arduino reads and parses this data, sending it from the Arduino and back into PD. This feedback data is then sent back to the Arduino from Pure Data, controlling the PWM of a LED. This is done with several streams of data in this example.

Arduino

/* 

~~~~~~~ arduivis - Pure Data ~~~~~~~
~~~~~ model#6: multiple feedbacks ~~~~~

PD: arduivis_model6_PD_multipleFeedbacks.pd

This is an example of to read sliders from PD. 
An Arduino reads and parses this data, sending
it from the Arduino and back into PD. This 
feedback data is then sent back to the Arduino
from Pure Data, controlling the PWM of a LED. 
This is done with several streams of data in 
this example.

This code is in the public domain

written by Christopher Konopka
http://cskonopka.github.io/arduivis/
http://christopherkonopka.com/

*/

void setup() 
{
  //  Create/open serial port    
    Serial.begin(9600);       

  // Define LED mode 
  // PWM LED
    pinMode(3, OUTPUT);
    pinMode(5, OUTPUT);  
    pinMode(6, OUTPUT);
    pinMode(9, OUTPUT);  
}

void loop() 
{ 
  // Sliders from Pure Data
    int pdSlider1, pdSlider2, pdSlider3, pdSlider4;

  // Feedback from Pure Data (original output from Arduino)
    int feedbackFromPD1, feedbackFromPD2, feedbackFromPD3, feedbackFromPD4;

  // Parse incoming Pure Data slider values
  // from Pure Data, to Arduino
    pdSlider1 = Serial.parseInt();
    pdSlider2 = Serial.parseInt();
    pdSlider3 = Serial.parseInt();
    pdSlider4 = Serial.parseInt(); 


  // Parse incoming Pure Data (feedback) values
  // from Pure Data (feedback), to Arduino 
    feedbackFromPD1 = Serial.parseInt();
    feedbackFromPD2 = Serial.parseInt();
    feedbackFromPD3 = Serial.parseInt();
    feedbackFromPD4 = Serial.parseInt(); 

  // Write parsed values to LEDs
  // Fading LED
  // from Pure Data (feedback), to Arduino
    analogWrite(3, feedbackFromPD1);
    analogWrite(5, feedbackFromPD2);
    analogWrite(6, feedbackFromPD3);    
    analogWrite(9, feedbackFromPD4);
  
    // Write parsed slider values to serial buffer
  // [comport] object
  // to Pure Data, from Arduino
    Serial.print(pdSlider1);
    Serial.print(" ");
    Serial.print(pdSlider2);
    Serial.print(" ");
    Serial.print(pdSlider3);
    Serial.print(" ");
    Serial.print(pdSlider4);
    Serial.print(" ");

  // Write feedback values to serial buffer
  // [comport] object
  // to Pure Data, from Arduino
  // This is useful for debugging
    Serial.print(feedbackFromPD1);
    Serial.print(" "); 
    Serial.print(feedbackFromPD2);
    Serial.print(" ");   
    Serial.print(feedbackFromPD3);
    Serial.print(" "); 
    Serial.println(feedbackFromPD4); 
    
    delay(2);
}

PD-Extended