Arduino Programs

Arduino Mood Lamp 

Oscillating lights program:

/*

 Mood Lamp - oscillates between colors

 */ 

 

// each pin corresponds to an LED color:

int led0 = 9;

int led1 = 10;

int led2 = 11; 

//declare internal variables

int brightness = 100;

int red = 0;

int blue = 0;

int green = 0;

int x = 0;

// this routine runs each time you hit the reset button

void setup() {                

  // declare the relevant pins to be output

  pinMode(led0, OUTPUT);    

  pinMode(led1, OUTPUT);    

  pinMode(led2, OUTPUT);    

}

void loop() {

  // put your main code here, to run repeatedly:

  for (float x=0; x < PI; x = x + .000004){

    red = brightness * abs(sin(x*(180/PI)));

    green = brightness * abs(sin((x+PI/3)*(180/PI)));

    blue = brightness * abs(sin((x+(2*PI)/3)*(180/PI)));

    analogWrite(led0, red);

    analogWrite(led1, green);

    analogWrite(led2, blue);

  }

}

Fading Program:

int led0 = 11;

int brightness = 0;

int fadeAmount = 15 ;

void setup() {

  // put your setup code here, to run once:

  pinMode(led0,OUTPUT);

}

void loop() {

  // brings the brightness of the LED down slowly

  analogWrite(led0, brightness);

  brightness = brightness + fadeAmount;  

  if (brightness == 0 || brightness ==225){

     fadeAmount = -fadeAmount;

  }

 delay(1000); 

}