transistor schemi

[arduino] / programming_sketchbook / ultrasonic_distance / ultrasonic_distance.pde

diff --git a/programming_sketchbook/ultrasonic_distance/ultrasonic_distance.pde b/programming_sketchbook/ultrasonic_distance/ultrasonic_distance.pde
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--- a/programming_sketchbook/ultrasonic_distance/ultrasonic_distance.pde
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-/* The following Processing Sketch was created by ScottC on
- the 10 Nov 2012 : http://arduinobasics.blogspot.com/
- 
- Inspired by this Processing sketch by Daniel Shiffman:
- http://processing.org/learning/basics/sinewave.html
- 
-*/
-import processing.serial.*;
-
-
-int numOfShapes = 60; // Number of squares to display on screen 
-int shapeSpeed = 2; // Speed at which the shapes move to new position
- // 2 = Fastest, Larger numbers are slower
-
-//Global Variables 
-Square[] mySquares = new Square[numOfShapes];
-int shapeSize, distance;
-String comPortString;
-Serial myPort;
-
-/* -----------------------Setup ---------------------------*/
-void setup(){
- size(displayWidth,displayHeight); //Use entire screen size.
- smooth(); // draws all shapes with smooth edges.
- 
- /* Calculate the size of the squares and initialise the Squares array */
- shapeSize = (width/numOfShapes); 
- for(int i = 0; i<numOfShapes; i++){
- mySquares[i]=new Square(int(shapeSize*i),height-40);
- }
- 
- /*Open the serial port for communication with the Arduino
- Make sure the COM port is correct - I am using COM port 8 */
- myPort = new Serial(this, "/dev/ttyACM2", 9600);
- myPort.bufferUntil('\n'); // Trigger a SerialEvent on new line
-}
-
-/* ------------------------Draw -----------------------------*/
-void draw(){
- background(0); //Make the background BLACK
- delay(50); //Delay used to refresh screen
- drawSquares(); //Draw the pattern of squares
-}
-
-
-/* ---------------------serialEvent ---------------------------*/
-void serialEvent(Serial cPort){
- comPortString = cPort.readStringUntil('\n');
- if(comPortString != null) {
- comPortString=trim(comPortString);
- 
- /* Use the distance received by the Arduino to modify the y position
- of the first square (others will follow). Should match the
- code settings on the Arduino. In this case 200 is the maximum
- distance expected. The distance is then mapped to a value
- between 1 and the height of your screen */
- distance = int(map(Integer.parseInt(comPortString),1,200,1,height));
- if(distance<0){
- /*If computer receives a negative number (-1), then the
- sensor is reporting an "out of range" error. Convert all
- of these to a distance of 0. */
- distance = 0;
- }
- }
-}
-
-
-/* ---------------------drawSquares ---------------------------*/
-void drawSquares(){
- int oldY, newY, targetY, redVal, blueVal;
- 
- /* Set the Y position of the 1st square based on 
- sensor value received */
- mySquares[0].setY((height-shapeSize)-distance);
- 
- /* Update the position and colour of each of the squares */
- for(int i = numOfShapes-1; i>0; i--){
- /* Use the previous square's position as a target */
- targetY=mySquares[i-1].getY();
- oldY=mySquares[i].getY();
- 
- if(abs(oldY-targetY)<2){
- newY=targetY; //This helps to line them up
- }else{
- //calculate the new position of the square
- newY=oldY-((oldY-targetY)/shapeSpeed);
- }
- //Set the new position of the square
- mySquares[i].setY(newY);
- 
- /*Calculate the colour of the square based on its
- position on the screen */
- blueVal = int(map(newY,0,height,0,255));
- redVal = 255-blueVal;
- fill(redVal,0,blueVal);
- 
- /* Draw the square on the screen */
- rect(mySquares[i].getX(), mySquares[i].getY(),shapeSize,shapeSize);
- }
-}
-
-/* ---------------------sketchFullScreen---------------------------*/
-// This puts processing into Full Screen Mode
-boolean sketchFullScreen() {
- return true;
-}
-
-/* ---------------------CLASS: Square ---------------------------*/
-class Square{
- int xPosition, yPosition;
- 
- Square(int xPos, int yPos){
- xPosition = xPos;
- yPosition = yPos;
- }
- 
- int getX(){
- return xPosition;
- }
- 
- int getY(){
- return yPosition;
- }
- 
- void setY(int yPos){
- yPosition = yPos;
- }
-}