  I have decided to post the Processing code to render the data from the Arduino. This my first processing project. I have kept the code very simple and with that flexible. This code does not have to be used with a PIR sensor it could be used with any analog sensor on 2 servos. // GR0B Basic draw - Robert Sturzbecher // This is my first Processing project. The purpose of this project is to render the values received back from a PIR sensor on 2 servos to give a crude image // server stepping on the Arduino is 3/180 if you use some thing different // I have made the code very generic and flexable to suit any project that outputs (X Y Value) import processing.serial.*; Serial myPort; // Create object from Serial class int val; // Data received from the serial port int ServoStepping = 3; // Change this to match the Arduino servo stepping void setup() { size(555, 550); // ((180x3)+10) String portName = Serial.list()[0]; // you will get a error here if port not found or in use. [0] is first serial port found myPort = new Serial(this, portName, 19200); background(0); } void draw() { String xString = myPort.readStringUntil('\n'); // read the serial port until a new line if (xString != null) { // if theres data in between the new lines fill(0); // set fill to black String[] SerialLine = split(xString,' '); // split serial string line into array // string from arduino should line like this "X: 90 Y: 80 Val: 154" int PosX = int(SerialLine[2]); int PosY = int(SerialLine[4]); int PIRVal = int(SerialLine[6]); PosX = PosX *3; // zoom pixel size. 1/180 now equles a 3x3 size PosY = PosY *3; // define Color int R = (PIRVal - 120); // you will need to customise these values to your project int G = (PIRVal - 130); int B = 25; fill(R,G,B); // set color rect(PosX, PosY, ServoStepping*3, ServoStepping*3); // Draw colored square //print some debug info to console print(xString); print("RGB: "+R+" "+G+" "+B); println(" PIR:"+PIRVal); } } |
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Processingposted Feb 6, 2011 2:20 AM by robert sturzbecher |