import processing.serial.; //import the Serial library import controlp5.; Serial myport; //the Serial port object

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Chloe Osborne
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1 import processing.serial.*; //import the Serial library import controlp5.*; Serial myport; //the Serial port object ControlP5 cp5; //the Control object CheckBox checkbox; Chart mychart; //Initialize Variables String inputtext = ""; String val; String[] thisiter; String[] datasent; boolean firstcontact = false; int module = 0; String steptimer = ""; String stepleft = ""; String tottimer = ""; int stepcount = 0; int preheat = 0; int potposition = 0; int HLTTemp = 0; int MashTemp = 0; int BoilTemp = 0; int ChillTemp = 0; int moduleselect = 0; int nsteps = 0; float[] temptarget = new float[4]; float[] curtemps = new float[4];

2 int[] steptemps = new int[10]; int chartcounter = 0; //Start Serial communication void setup() { size(700, 400); smooth(); myport = new Serial(this, "COM3", 9600); myport.bufferuntil(10); PFont font = createfont("arial", 12); cp5 = new ControlP5(this); cp5.addtextfield("input").setposition(10, 360).setSize(400, 20).setFont(font).setFocus(true).setColor(color(255, 0, 0)) ; cp5.addbang("clear").setposition(540, 360).setSize(80, 20).getCaptionLabel().align(ControlP5.CENTER, ControlP5.CENTER) ; cp5.addbang("send")

3 .setposition(440, 360).setSize(80, 20).getCaptionLabel().align(ControlP5.CENTER, ControlP5.CENTER) ; checkbox = cp5.addcheckbox("checkbox").setposition(10,310).setsize(20,20).setitemsperrow(2).setspacingcolumn(100).setspacingrow(20).additem("water Pump",4).addItem("Wort Pump",5) ; cp5.printpublicmethodsfor(chart.class); mychart = cp5.addchart("temperatures").setposition(300,50).setsize(350,250).setrange(40,220).setview(chart.line) ; mychart.getcolor().setbackground(color(255, 100)); mychart.setstrokeweight(4); mychart.adddataset("hlttemp"); mychart.setcolors("hlttemp",color(0,255,0), color(0, 255, 0)); mychart.setdata("hlttemp",new float[5000]); mychart.adddataset("mashtemp"); mychart.setcolors("mashtemp",color(255,255,0), color(255,255,0)); mychart.setdata("mashtemp",new float[5000]);

4 mychart.adddataset("boiltemp"); mychart.setcolors("boiltemp",color(255,0,255), color(255, 0, 255)); mychart.setdata("boiltemp",new float[5000]); mychart.adddataset("chilltemp"); mychart.setcolors("chilltemp",color(0,0,255), color(0, 0, 255)); mychart.setdata("chilltemp",new float[5000]); mychart.adddataset("temptarget"); mychart.setcolors("temptarget",color(255, 0, 0), color(255, 0, 0)); mychart.setdata("temptarget",new float[5000]); textfont(font); void serialevent(serial myport) { //put the incoming data into a String - //the '\n' is our end delimiter indicating the end of a complete packet val = myport.readstringuntil(10); //make sure our data isn't empty before continuing if (val!= null) { //trim whitespace and formatting characters (like carriage return) val = trim(val); println(val); //look for our 'A' string to start the handshake //if it's there, clear the buffer, and send a request for data if (firstcontact == false) { if (val.equals("a")) { myport.clear(); firstcontact = true; myport.write("a");

5 println("contact"); else { //if we've already established contact, keep getting and parsing data // Once contact is established, initialize the variables from the Serial stream if (val.equals("a")) { else { thisiter = split(val, ","); //printarray(thisiter); module = int(thisiter[0]); steptimer = thisiter[1]; stepleft = thisiter[2]; tottimer = thisiter[3]; stepcount = int(thisiter[4]); preheat = int(thisiter[5]); potposition = int(thisiter[6]); HLTTemp = int(thisiter[7]); curtemps[0]=float(hlttemp); MashTemp = int(thisiter[8]); curtemps[1] = float(mashtemp); BoilTemp = int(thisiter[9]); curtemps[2] = float(boiltemp); ChillTemp = int(thisiter[10]); curtemps[3] = float(chilltemp); if (moduleselect == 1){ temptarget[0] = float(steptemps[stepcount-1]); //HLT Temp temptarget[1] = temptarget[0] ; //Mash Temp else { println("somethings isnt working");

6 //Actually plot stuff to the GUI void draw() { background(0); fill(218,119,17); textsize(24); text("deathstar BREWING SYSTEM",150,30); textsize(12); text("status",10,50); text("timers",10,150); text("temperatures",10,220); fill(255); if (firstcontact == true){ text("arduino Connected:",10,65); text("on",130,65); else { text("arduino Connected:",10,65); text("off",130,65); text("module: ",10, 80); if (module == 1) text("mash",130,80); else if (module == 2) text("boil",130,80); else if (module == 3) text("chill",130,80); else if (module == 6) text("test",130,80); else text("error",130,80); text("step Number: ",10, 95); text(stepcount,130,95); text("preheated?",10,110); if (preheat == 0) text("no",130,110); else text("yes",130,110); text("element Duty Cycle: ",10, 125); text(potposition+"%",130,125); text("time in Step: ",10,165); text(steptimer,130,165);

7 text("time Left in Step: ",10,180); text(stepleft,130,180); text("total Time: ", 10, 195); text(tottimer,130,195); text("current",130,235); text("target",200,235); text("hlt Temp: degf",200,250); ", 10, 250); text(hlttemp+" degf",130,250);text(int(temptarget[0])+" text("mash Temp: ",10, 265); text(mashtemp+" degf",130,265); text(int(temptarget[1])+" degf",200,265); text("boil Temp: degf",200,280); ",10, 280); text(boiltemp+" degf",130,280);text(int(temptarget[2])+" text("chiller Temp: ",10, 295); text(chilltemp + " degf",130,295);text(int(temptarget[3])+" degf",200,295); text("modules = [1] Mash, [2] Boil, [3] Chill, [6] Test... KEYOPTS Differ By Module",10,350); if (chartcounter < 10) { mychart.push("hlttemp",curtemps[0]); mychart.push("mashtemp",curtemps[1]); mychart.push("boiltemp",curtemps[2]); mychart.push("chilltemp",curtemps[3]); if (module == 1) { mychart.push("temptarget",temptarget[0]); else if (module == 2) { mychart.push("temptarget",temptarget[2]); else if (module == 3) { mychart.push("temptarget",temptarget[3]); else { mychart.push("temptarget",0.0); chartcounter ++;

8 else{ chartcounter = 0; text(220, 275, 50); text(40,280,305); public void clear() { cp5.get(textfield.class, "input").clear(); // Use Q as a kill key and turn off everything void keypressed() { if (key == 'Q') { myport.write("9999"); println("9999"); temptarget[2] = 0; // After pressing Q, need to press R to reset check boxes in Processing since it doesn't happen automatically else if(key == 'R') checkbox.deactivateall(); // Send commands to the Arduino when the Send key is chosen public void send() { inputtext = cp5.get(textfield.class, "input").gettext(); println(inputtext); myport.write(inputtext); datasent = split(inputtext, ",");

9 //printarray(datasent); moduleselect = int(datasent[0]); if (moduleselect == 1) { nsteps = int(datasent[1]); for (int i=0;i<nsteps;i++){ steptemps[i] = int(datasent[i*2+3]); //println(steptemps[i]); temptarget[2] = 0; //Boil Temp temptarget[3] = 0; //Chiller Temp else if (moduleselect == 2) { temptarget[0] = 0; //HLT Temp temptarget[1] = 0; //Mash Temp temptarget[2] = 212; //Boil Temp temptarget[3] = 0; //Chiller Temp else if (moduleselect == 3) { temptarget[0] = 0; //HLT Temp temptarget[1] = 0; //Mash Temp temptarget[2] = 0; //Boil Temp temptarget[3] = float(datasent[1]); //Chiller Temp else { temptarget[0] = 0; //HLT Temp temptarget[1] = 0; //Mash Temp temptarget[2] = 0; //Boil Temp temptarget[3] = 0; //Chiller Temp

10 // Send stuff to Arduino based upon the checkbox values void controlevent(controlevent theevent) { if (theevent.isfrom(checkbox)) { int j = (int)checkbox.getarrayvalue()[0]; //Water Pump Status int k = (int)checkbox.getarrayvalue()[1]; //Wort Pump Status myport.write("4," + j + "," + k); println("4," + j + "," + k); delay(200);

Connecting Arduino to Processing a

Connecting Arduino to Processing a learn.sparkfun.com tutorial Available online at: http://sfe.io/t69 Contents Introduction From Arduino......to Processing From Processing......to Arduino Shaking Hands