Arduino Projecten

Arduino Projecten

Voor het bouwen van het circuit, sluit een weerstand van 220 ohm naar pin 13. Bevestig daarna de lange been van een LED (de positieve been, genaamd de anode) naar de weerstand. Bevestig het korte been (de negatieve been, genaamd de kathode) aan de grond. Dan stop je de Arduino board in uw computer, start het Arduino-programma en voer onderstaande code.

De meeste Arduino boards heb al een LED aangesloten op pin 13 op het bord. Als u dit voorbeeld wilt uitvoeren met geen hardware aangesloten, zul je zien dat de LED zal knipperen.

Normaal Blink

Source code voor blink

/*

  Blink

  Turns on an LED on for one second, then off for one second, repeatedly.

  This example code is in the public domain.

 */

// Pin 13 has an LED connected on most Arduino boards.

// give it a name:

int led = 13;

// the setup routine runs once when you press reset:

void setup() {               

  // initialize the digital pin as an output.

  pinMode(led, OUTPUT);    

}

// the loop routine runs over and over again forever:

void loop() {

  digitalWrite(led, HIGH);   // turn the LED on (HIGH is the voltage level)

  delay(1000);               // wait for a second

  digitalWrite(led, LOW);    // turn the LED off by making the voltage LOW

  delay(1000);               // wait for a second

}

Knightrider Project

Source code voor For loop

/*

  For Loop Iteration

 Demonstrates the use of a for() loop. 

 Lights multiple LEDs in sequence, then in reverse.

 The circuit:

 * LEDs from pins 2 through 7 to ground

 created 2006

 by David A. Mellis

 modified 30 Aug 2011

 by Tom Igoe 

This example code is in the public domain.

 http://www.arduino.cc/en/Tutorial/ForLoop

 */

int timer = 100;           // The higher the number, the slower the timing.

void setup() {

  // use a for loop to initialize each pin as an output:

  for (int thisPin = 2; thisPin < 8; thisPin++)  {

    pinMode(thisPin, OUTPUT);      

  }

}

void loop() {

  // loop from the lowest pin to the highest:

  for (int thisPin = 2; thisPin < 8; thisPin++) { 

    // turn the pin on:

    digitalWrite(thisPin, HIGH);   

    delay(timer);                  

    // turn the pin off:

    digitalWrite(thisPin, LOW);    

  }

  // loop from the highest pin to the lowest:

  for (int thisPin = 7; thisPin >= 2; thisPin--) { 

    // turn the pin on:

    digitalWrite(thisPin, HIGH);

    delay(timer);

    // turn the pin off:

    digitalWrite(thisPin, LOW);

  }

}

Fader project

Source code voor fading

/*

 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);                            

}