1. Εγκατάσταση του δωρέαν - ανοικτού λογισμικού Arduino απο το διαδίκτυο (http://arduino.cc/).
2. Σύνδεση του Arduino με τον υπολογιστή.
3. Γραφικό Περιβάλλον του Arduino

• File/Examples/Basics/Fade
• File/Examples/Digitas/toneMelody

/*
 Fade

 This example shows how to fade an LED on pin 9
 using the analogWrite() function.

 This example code is in the public domain.
 */

int led = 9;           // the pin that the LED is attached to
int brightness = 0;    // how bright the LED is
int fadeAmount = 5;    // how many points to fade the LED by

// the setup routine runs once when you press reset:
void setup()  {
  // declare pin 9 to be an output:
  pinMode(led, OUTPUT);
}

// the loop routine runs over and over again forever:
void loop()  {
  // set the brightness of pin 9:
  analogWrite(led, brightness);

  // change the brightness for next time through the loop:
  brightness = brightness + fadeAmount;

  // reverse the direction of the fading at the ends of the fade:
  if (brightness == 0 || brightness == 255) {
    fadeAmount = -fadeAmount ;
  }
  // wait for 30 milliseconds to see the dimming effect
  delay(30);
}

1. Δημιουργία εφαρμογής για διάβασμα αναλογικής εισόδου
2. Δημιουργία για να αναβοσβήνω το LED

Examples/Libraries/serial/SimpleWrite file:///Applications/Arduino.app/Contents/Resources/Java/reference/Serial_Print.html

Η χρήση τη Standart Firmata αποτελεί μια λύση για την επικοινωνία του Arduino με άλλα λογισμικά, αλλα δεν είναι η μοναδική. Στο συγκεκριμένο κεφάλαιο θα δημιουργήσουμε το δικό μας πρωτόκολλο επικοινωνίας.

/*
city:

- http://arduino.cc/en/Tutorial/BlinkWithoutDelay

*/

//traffic lights
int counter=0;
int led1 = 13;
int led2 = 12;
int led3 = 11;
int ledState1 = LOW;             // ledState used to set the LED
int ledState2 = LOW;
int ledState3 = LOW;
long previousMillis1 = 0;        // will store last time LED was updated
long previousMillis2 = 0;
long previousMillis3 = 0;
long intervalg = 5;           // interval at which to blink (milliseconds)
long intervalo = 1;
long intervalr = 5;

int myCounter = 0;

int trigger=1;

//street lights
int analog0 = A0;
int sensorValue;
unsigned long currentMillis;
// the setup routine runs once when you press reset:
void setup() {
  currentMillis = millis();
  Serial.begin(9600);
  // initialize the digital pin as an output.
  pinMode(led1, OUTPUT);
  pinMode(led2, OUTPUT);
  pinMode(led3, OUTPUT);

}

// the loop routine runs over and over again forever:
void loop() {

    counter++;

  traficlights();
//
  Serial.print(ledState1);
  Serial.print("\t");
  Serial.print(ledState2);
  Serial.print("\t");
  Serial.print(ledState3);
  Serial.print("\t");
  Serial.print(trigger);
  Serial.print("\t");
  Serial.print(counter);

  Serial.print("\n");

 // Serial.println(myCounter);

  //fotismosDromou();
}

void traficlights()  {

  if(trigger==1){
    if (counter>= 480) {
      trigger=2;
      counter=0;
}
  }
  if(trigger==2){
    if(counter>=196){
      trigger=3;
      counter=0;

    }
  }
  if (trigger==3){
    if(counter>=480){
      trigger=1;
      counter=0;
  }
  }

  if (trigger==1){
    ledState2=LOW;
    ledState3=LOW;
    ledState1 = HIGH;
  }else if (trigger==2){
    ledState1=LOW;
    ledState3=LOW;

    ledState2=HIGH;

  }else if (trigger==3){
    ledState1=LOW;
    ledState2=LOW;
    ledState3=HIGH;
  }
}