Week13 林育廷

一、使用arduino範例的Digital中的DigitalInputPullup



參考範例



實作->按下會發亮



沒按時為1



按下時為0



二、套用到車子程式碼



測試回傳值是否正確

程式碼:

import processing.serial.*;

Serial myPort;  // Create object from Serial class

int val;      // Data received from the serial port

void setup() {

size(640, 480, P3D);

rectMode(CENTER);

myPort = new Serial(this, "COM4", 9600);

}

  float carX=640/2, carY=320/2;

  float carDir=PI, carWheel=0;

  void drawCar() {

    pushMatrix();

    translate(carX, carY);

    rotateZ(carDir);

    rect(0, 0, 187, 89);

    drawWheel(127/2, 89/2, 1);

    drawWheel(127/2, -89/2, 1);

    drawWheel(-127/2, 89/2, 0);

    drawWheel(-127/2, -89/2, 0);

  if (keyPressed && keyCode==UP) {

    carX+= cos(carDir+carWheel); 

    carY+=sin(carDir+carWheel);

    carDir+=carWheel/50;

  } else if (keyPressed && keyCode==DOWN) {

    carX-= cos(carDir+carWheel); 

    carY-=sin(carDir+carWheel);

    carDir-=carWheel/50;

  } else if (keyPressed && keyCode==RIGHT) {

    carWheel+=0.01;

  if (carWheel > 0.3) carWheel=0.3;

  } else if (keyPressed && keyCode==LEFT) {

  carWheel-=0.01;

  if (carWheel < -0.3) carWheel=-0.3;

  }

  popMatrix();

}

void drawWheel(float x, float y, int front) {

pushMatrix();

translate(x, y);

if (front==1) rotateZ(carWheel);

rect(0, 0, 40, 20);

popMatrix();

}

void draw() {

  while ( myPort.available() > 0) {  // If data is available,

    val = myPort.read();     // read it and store it in val

  if(val==48)  //前進 

  {

    carX+=cos(carDir+carWheel);

    carY+=sin(carDir+carWheel);

    carDir+=carWheel/50;

  }

  else if(val==49) //後退

  {

    carX-=cos(carDir+carWheel);

    carY-=sin(carDir+carWheel);

    carDir-=carWheel/50;

  }

}

  println(val);

  background(100);

  drawCar();

  rect(0+187/2, 0+89/2, 187, 89);

  rect(450+187/2, 0+89/2, 187, 89);

}