16. November 2011

Aufgabe

2. Lest die Werte eines Potetiometers an einem analogen Pin ein und verändert die Blinkgeschwindigkeit einer LEDMaterial: Potentiometer, Widerstand (10kOhm), LED, Vorwiderstand CODE

// set pin numbers:
const int analogIn =  0;
const int ledPin =  11;

int potiVal = 0;
float foo = 0;

void setup() {
  Serial.begin(9600);
  pinMode(ledPin, OUTPUT);
}

void loop() {
  potiVal = analogRead(analogIn);
  //foo = map(potiVal,0,1023,0,255);
  foo = potiVal;
  digitalWrite(ledPin, HIGH);
  delay(foo);
  digitalWrite(ledPin, LOW);
  delay(foo);
  Serial.print(foo);
  Serial.println();
}

Aufgabe

5. Lest die Werte des Sensors in Processing ein und visualisiert diese. Achtet dabei auf eine nachvollziehbare Art der Visualisierung. Material: Sensor, Widerstand, Processing Zwei Drucksensoren (Wiederstände) wurden in einer 3D-Visualisierung für die Rotation von der x- und y-Achse eingesetzt. Arduino

// set pin numbers:
const int analogIn1 =  0;
const int analogIn2 =  1;

int potiVal1 = 0;
int potiVal2 = 0;
int out1 = 0;
int out2 = 0;

void setup() {
  Serial.begin(9600);
}

void loop() {
  potiVal1 = analogRead(analogIn1);
  potiVal2 = analogRead(analogIn2);
  out1 = map(potiVal1,0,1024,0,6);
  out2 = map(potiVal2,0,1024,0,6);
  Serial.print(out1);
  Serial.print(',');
  Serial.print(out2);
  Serial.print(',');
  Serial.println();
}

Processing

import processing.serial.*;

Serial myPort;
float potiVal1 = 0;
float potiVal2 = 2;

PImage[] imageList = null;
int listLenght = 32;
int factor = 1;
float rotx;
float roty;
boolean done;
boolean switchFlag = false;
int posX = 1;
int posY = 1;
int signY = -1;

void setup() {
  size(500, 500, P3D);

  println(Serial.list());
  myPort = new Serial(this,Serial.list()[0],9600);

  done = false;
  PImage tmpImage;
  color col;
  int r,g,b,a;

  //init
  switchFlag = true;
  rotx = 100*TWO_PI + PI/4;
  roty = 100*TWO_PI + PI/4;
  imageList = new PImage[listLenght];

  for(int i=0; i < listLenght; i++) {
    tmpImage = loadImage("./pollen/image"+i+".jpg");
    tmpImage.loadPixels();
    imageList[i] = createImage(tmpImage.width, tmpImage.height, ARGB);
    imageList[i].loadPixels();
    for(int j=0; j> 16) & 0xff;
      g = (col >> 8) & 0x88;
      b = col & 0x22;
      a = (r+g+b)/3;
      col = color(r,g,b,a);
      imageList[i].pixels[j] = col;
    }
    imageList[i].updatePixels();
  }

  done = true;
  noStroke();
}

void draw() {
  background(30);
  if(done) {
    background(30);
    ortho(0, width, 0, height, -10, 10);
    translate(width, height);
    rotateX(rotx);
    rotateY(roty);

    if(switchFlag) {
      for(int i=0; i0; i--) {
        beginShape();
          texture(imageList[i]);
          vertex(-100, -100,i, 0, 0);
          vertex(100, -100,i, imageList[i].width, 0);
          vertex(100, 100,i, imageList[i].width, imageList[i].height);
          vertex(-100, 100,i, 0, imageList[i].height);
         endShape();
      }
    }
  } else {
    println("loading");
  }
}

void serialEvent(Serial myPort) {
  if(myPort.available() > 0) {
    String completeString = myPort.readStringUntil(10);
    if(completeString != null) {
      trim(completeString);
      println(completeString);
      int[] seperateVal = int(split(completeString,','));

      potiVal1 = seperateVal[0];
      potiVal2 = seperateVal[1];

      float rate = 0.01;

      rotx += (potiVal1 * rate);
      roty += (potiVal2 * rate)*signY;

      int fooPosY = int((roty+PI/2)/PI)%2;
      int fooPosX = int((rotx+PI/2)/PI)%2;
      if(posX != fooPosX) {
        posX = fooPosX;
        signY *= -1;
        switchFlag = !switchFlag;
      }
      if(posY != fooPosY) {
        posY = fooPosY;
        switchFlag = !switchFlag;
      }
    }
  }
}