arduino-viz

/* Processing code for this example */
 
 // Graphing sketch
 
 
 // This program takes ASCII-encoded strings
 // from the serial port at 9600 baud and graphs them. It expects values in the
 // range 0 to 1023, followed by a newline, or newline and carriage return
 
 // Created 20 Apr 2005
 // Updated 18 Jan 2008
 // by Tom Igoe
 // This example code is in the public domain.
 
 import processing.serial.*;
 
 Serial myPort;        // The serial port
 int xPos = 1;         // horizontal position of the graph
 
 void setup () {
 // set the window size:
 size(800, 600);        
 
 // List all the available serial ports
 println(Serial.list());
 // I know that the first port in the serial list on my mac
 // is always my  Arduino, so I open Serial.list()[0].
 // Open whatever port is the one you're using.
 myPort = new Serial(this, "/dev/ttyACM0", 115200);
 // don't generate a serialEvent() unless you get a newline character:
 myPort.bufferUntil('\n');
 // set inital background:
 background(0);
 fill(0);
 // Setup markers
 text("5V", 10, map(0, 0, 1023, 0, height));
 text("2.5V", 10, map(1023/2, 0, 1023, 0, height));
 text("0V", 10, map(1023, 0, 1023, 0, height));
 }
 void draw () {
 // everything happens in the serialEvent()
 }
 
 void serialEvent (Serial myPort) {
 // get the ASCII string:
 String inString = myPort.readStringUntil('\n');
 
 if (inString != null) {
 
   // trim off any whitespace:
 inString = trim(split(inString, "\n")[0]);
 
 //check multiple plots
 String[] plots = split(inString, ",");
 
 //reset text area
 noStroke();
 fill(0);
 rect(0,0,100*plots.length,100);
 
 color[] colors = { color(255,0,0), color(0,255,0), color(0,0,255), color(255,255,0), color(0,255,255) };  
 
 for (int p = 0;p < plots.length && p < 5;p++) {
   // convert to an int and map to the screen height:
   float inByte = float(trim(plots[p]));
   inByte = map(inByte, 0, 1023, 0, height);
 
   fill(colors[p]);
   text(plots[p], 0+(p*30), 10);
 
   // draw the line:
   stroke(colors[p]);
   line(xPos, height - inByte, xPos, height - inByte + 2);
 }



 
 
 // at the edge of the screen, go back to the beginning:
 if (xPos >= width) {
   xPos = 0;
   background(0);
   
   // Setup markers
   text("5V", width-30, map(0, 0, 1023, 0, height));
   text("2.5V", width-30, map(1023/2, 0, 1023, 0, height));
   text("0V", width-30, map(1023, 0, 1023, 0, height));
 }
 else {
 // increment the horizontal position:
 xPos++;
 }
 }
 }