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style="color: blue;">import processing.serial.*;

style="color: blue;">import java.io.*;

style="color: rgb(43, 145, 175);">int mySwitch=0;

style="color: rgb(43, 145, 175);">int counter=0;
String [] subtext;
Serial myPort;



style="color: rgb(43, 145, 175);">void setup(){
 
style="color: green;">//Create a switch that will control the frequency of text file reads.
 
style="color: green;">//When mySwitch=1, the program is setup to read the text file.
 
style="color: green;">//This is turned off when mySwitch = 0
 mySwitch=1;
 
 
style="color: green;">//Open the serial port for communication with the Arduino
 
style="color: green;">//Make sure the COM port is correct
 myPort = 
style="color: blue;">new Serial(this, 
style="color: rgb(163, 21, 21);">"COM6", 9600);
 myPort.bufferUntil(
style="color: rgb(163, 21, 21);">'\n');
}


style="color: rgb(43, 145, 175);">void draw() {
 
style="color: blue;">if (mySwitch>0){
 
style="color: green;">/*The readData function can be found later in the code.

style="color: green;"> This is the call to read a CSV file on the computer hard-drive. */
 readData(
style="color: rgb(163, 21, 21);">"D:/mySensorData.txt");
 
 
style="color: green;">/*The following switch prevents continuous reading of the text file, until

style="color: green;"> we are ready to read the file again. */
 mySwitch=0;
 }
 
style="color: green;">/*Only send new data. This IF statement will allow new data to be sent to

style="color: green;"> the arduino. */
 
style="color: blue;">if(counter<subtext.length){
 
style="color: green;">/* Write the next number to the Serial port and send it to the Arduino 

style="color: green;"> There will be a delay of half a second before the command is

style="color: green;"> sent to turn the LED off : myPort.write('0'); */
 myPort.write(subtext[counter]);
 delay(500);
 myPort.write(
style="color: rgb(163, 21, 21);">'0');
 delay(100);
 
style="color: green;">//Increment the counter so that the next number is sent to the arduino.
 counter++;
 } 
style="color: blue;">else{
 //If the text file has run out of numbers, then read the text file again in 5 seconds.
 delay(5000);
 mySwitch=1;
 }
} 



style="color: green;">/* The following function will read from a CSV or TXT file */

style="color: rgb(43, 145, 175);">void readData(String myFileName){
 
 File file=
style="color: blue;">new File(myFileName);
 BufferedReader br=
style="color: blue;">null;
 
 try{
 br=
style="color: blue;">new BufferedReader(
style="color: blue;">new FileReader(file));
 String text=
style="color: blue;">null;
 
 
style="color: green;">/* keep reading each line until you get to the end of the file */
 
style="color: blue;">while((text=br.readLine())!=
style="color: blue;">null){
 /* Spilt each line up into bits and pieces using a comma as a separator */
 subtext = splitTokens(text,
style="color: rgb(163, 21, 21);">",");
 }
 }
style="color: blue;">catch(FileNotFoundException e){
 e.printStackTrace();
 }
style="color: blue;">catch(IOException e){
 e.printStackTrace();
 }
style="color: blue;">finally{
 try {
 
style="color: blue;">if (br != null){
 br.close();
 }
 } 
style="color: blue;">catch (IOException e) {
 e.printStackTrace();
 }
 }
}

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style="color: green;">/* This program was created by ScottC on 8/5/2012 to receive serial 

style="color: green;">signals from a computer to turn on/off 1-9 LEDs */


style="color: rgb(43, 145, 175);">void setup() { 
 
style="color: green;">// 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);

style="color: green;">// Turn the Serial Protocol ON
 Serial.begin(9600);
}


style="color: rgb(43, 145, 175);">void loop() {
 
style="color: rgb(43, 145, 175);">byte byteRead;

 
style="color: green;">/* check if data has been sent from the computer: */
 
style="color: blue;">if (Serial.available()) {
 
 
style="color: green;">/* read the most recent byte */
 byteRead = Serial.read();
 
style="color: green;">//You have to subtract '0' from the read Byte to convert from text to a number.
 byteRead=byteRead-
style="color: rgb(163, 21, 21);">'0';
 
 
style="color: green;">//Turn off all LEDs if the byte Read = 0
 
style="color: blue;">if(byteRead==0){
 
style="color: green;">//Turn off all LEDS
 digitalWrite(2, LOW);
 digitalWrite(3, LOW);
 digitalWrite(4, LOW);
 digitalWrite(5, LOW);
 digitalWrite(6, LOW);
 digitalWrite(7, LOW);
 digitalWrite(8, LOW);
 digitalWrite(9, LOW);
 digitalWrite(10, LOW);
 }
 
 
style="color: green;">//Turn LED ON depending on the byte Read.
 
style="color: blue;">if(byteRead>0){
 digitalWrite((byteRead+1), HIGH); 
style="color: green;">// set the LED on
 }
 }
 }

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style="color: rgb(0, 128, 0);">/* TextFile Sender: Written by Scott C on 5th April 2013

style="color: rgb(0, 128, 0);"> using Processing Version 2.0b8 */

import processing.serial.*;

Serial comPort;

style="color: rgb(43, 145, 175);">int counter=0; 
style="color: rgb(0, 128, 0);">// Helps to keep track of values sent.

style="color: rgb(43, 145, 175);">int numItems=0; 
style="color: rgb(0, 128, 0);">//Keep track of the number of values in text file
boolean sendStrings=
style="color: rgb(0, 0, 255);">false; 
style="color: rgb(0, 128, 0);">//Turns sending on and off
StringLoader sLoader; 
style="color: rgb(0, 128, 0);">//Used to send values to Arduino


style="color: rgb(43, 145, 175);">void setup(){
 comPort = 
style="color: rgb(0, 0, 255);">new Serial(
style="color: rgb(0, 0, 255);">this, Serial.list()[0], 9600);
 background(255,0,0); 
style="color: rgb(0, 128, 0);">//Start with a Red background
}


style="color: rgb(43, 145, 175);">void draw(){
}



style="color: rgb(43, 145, 175);">void mousePressed() {
 
style="color: rgb(0, 128, 0);">//Toggle between sending values and not sending values
 sendStrings=!sendStrings;
 
 
style="color: rgb(0, 128, 0);">//If sendStrings is True - then send values to Arduino
 
style="color: rgb(0, 0, 255);">if(sendStrings){
 background(0,255,0); 
style="color: rgb(0, 128, 0);">//Change the background to green
 
 
style="color: rgb(0, 128, 0);">/*When the background is green, transmit

style="color: rgb(0, 128, 0);"> text file values to the Arduino */
 sLoader=
style="color: rgb(0, 0, 255);">new StringLoader();
 sLoader.start();
 }
style="color: rgb(0, 0, 255);">else{
 background(255,0,0); 
style="color: rgb(0, 128, 0);">//Change background to red
 
style="color: rgb(0, 128, 0);">//Reset the counter
 counter=0;
 }
}




style="color: rgb(0, 128, 0);">/*============================================================*/

style="color: rgb(0, 128, 0);">/* The StringLoader class imports data from a text file

style="color: rgb(0, 128, 0);"> on a new Thread and sends each value once every half second */

style="color: rgb(0, 0, 255);">public 
style="color: rgb(0, 0, 255);">class 
style="color: rgb(43, 145, 175);">StringLoader extends Thread{
 
 
style="color: rgb(0, 0, 255);">public StringLoader(){
 
style="color: rgb(0, 128, 0);">//default constructor
 }
 
 
style="color: rgb(0, 0, 255);">public 
style="color: rgb(43, 145, 175);">void run() {
 String textFileLines[]=loadStrings(
style="color: rgb(163, 21, 21);">"d:/mySensorData.txt");
 String lineItems[]=splitTokens(textFileLines[0], 
style="color: rgb(163, 21, 21);">",");
 numItems=lineItems.length;
 
style="color: rgb(0, 0, 255);">for(
style="color: rgb(43, 145, 175);">int i = counter; i<numItems; i++){
 comPort.write(lineItems[i]);
 delay(500);
 comPort.write(
style="color: rgb(163, 21, 21);">"0");
 }
 counter=numItems;
 }
}