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Devre Bağlantısı:

Arduino kodu:
/* This program was created by ScottC on 9/5/2012 to receive serial 
signals from a computer to turn on/off  1-9 LEDs */

void setup() {                
  // initialize the digital pins as an output.
  pinMode(2, OUTPUT);
  pinMode(3, OUTPUT);
  pinMode(4, OUTPUT);
  pinMode(5, OUTPUT);
  pinMode(6, OUTPUT);
  pinMode(7, OUTPUT);
  pinMode(8, OUTPUT);
  pinMode(9, OUTPUT);
  pinMode(10, OUTPUT);
// Turn the Serial Protocol ON

void loop() {
  byte byteRead;

   /*  check if data has been sent from the computer: */
  if (Serial.available()) {
    /* read the most recent byte */
    byteRead =;
    //You have to subtract '0' from the read Byte to convert from text to a number.
    //Turn off all LEDS
    for(int i=2; i<11; i++){
      digitalWrite(i, LOW);
      //Turn on the relevant LEDs
      for(int i=1; i<(byteRead+1); i++){
        digitalWrite(i+1, HIGH);
Processing kodu:
//Created by ScottC on 12/05/2012 to send mouse coordinates to Arduino

import processing.serial.*;

// Global variables
int new_sX, old_sX;
int nX, nY;
Serial myPort;

// Setup the Processing Canvas
void setup(){
  size( 800, 400 );
  strokeWeight( 10 );
  //Open the serial port for communication with the Arduino
  //Make sure the COM port is correct
  myPort = new Serial(this, "COM9", 9600);

// Draw the Window on the computer screen
void draw(){
  // Fill canvas grey
  background( 100 );
  // Set the stroke colour to white
  // Draw a circle at the mouse location
  ellipse( nX, nY, 10, 10 );

  //Draw Line from the top of the page to the bottom of the page
  //in line with the mouse.

// Get the new mouse location and send it to the arduino
void mouseMoved(){
  nX = mouseX;
  nY = mouseY; 
  //map the mouse x coordinates to the LEDs on the Arduino.

    //do nothing
  } else {
    //only send values to the Arduino when the new X coordinates are different.
    old_sX = new_sX;
Orjinal konu: