i have follow this diagram
Code: Select all
// color swirl! connect an RGB LED to the PWM pins as indicated
// in the #defines
// public domain, enjoy!
#define REDPIN 5
#define GREENPIN 6
#define BLUEPIN 3
#define FADESPEED 5 // make this higher to slow down
void setup() {
pinMode(REDPIN, OUTPUT);
pinMode(GREENPIN, OUTPUT);
pinMode(BLUEPIN, OUTPUT);
}
void loop() {
int r, g, b;
// fade from blue to violet
for (r = 0; r < 256; r++) {
analogWrite(REDPIN, r);
delay(FADESPEED);
}
// fade from violet to red
for (b = 255; b > 0; b--) {
analogWrite(BLUEPIN, b);
delay(FADESPEED);
}
// fade from red to yellow
for (g = 0; g < 256; g++) {
analogWrite(GREENPIN, g);
delay(FADESPEED);
}
// fade from yellow to green
for (r = 255; r > 0; r--) {
analogWrite(REDPIN, r);
delay(FADESPEED);
}
// fade from green to teal
for (b = 0; b < 256; b++) {
analogWrite(BLUEPIN, b);
delay(FADESPEED);
}
// fade from teal to blue
for (g = 255; g > 0; g--) {
analogWrite(GREENPIN, g);
delay(FADESPEED);
}
}
another thing is the code so this work with my XBMC i found this one
Code: Select all
//Developed by Rajarshi Roy
import java.awt.Robot; //java library that lets us take screenshots
import java.awt.AWTException;
import java.awt.event.InputEvent;
import java.awt.image.BufferedImage;
import java.awt.Rectangle;
import java.awt.Dimension;
import processing.serial.*; //library for serial communication
Serial port; //creates object "port" of serial class
Robot robby; //creates object "robby" of robot class
void setup()
{
port = new Serial(this, Serial.list()[0],9600); //set baud rate
size(100, 100); //window size (doesn't matter)
try //standard Robot class error check
{
robby = new Robot();
}
catch (AWTException e)
{
println("Robot class not supported by your system!");
exit();
}
}
void draw()
{
int pixel; //ARGB variable with 32 int bytes where
//sets of 8 bytes are: Alpha, Red, Green, Blue
float r=0;
float g=0;
float b=0;
//get screenshot into object "screenshot" of class BufferedImage
BufferedImage screenshot = robby.createScreenCapture(new Rectangle(new Dimension(1368,928)));
//1368*928 is the screen resolution
int i=0;
int j=0;
//1368*928
//I skip every alternate pixel making my program 4 times faster
for(i =0;i<1368; i=i+2){
for(j=0; j<928;j=j+2){
pixel = screenshot.getRGB(i,j); //the ARGB integer has the colors of pixel (i,j)
r = r+(int)(255&(pixel>>16)); //add up reds
g = g+(int)(255&(pixel>>8)); //add up greens
b = b+(int)(255&(pixel)); //add up blues
}
}
r=r/(684*464); //average red (remember that I skipped ever alternate pixel)
g=g/(684*464); //average green
b=b/(684*464); //average blue
port.write(0xff); //write marker (0xff) for synchronization
port.write((byte)(r)); //write red value
port.write((byte)(g)); //write green value
port.write((byte)(b)); //write blue value
delay(10); //delay for safety
background(r,g,b); //make window background average color
}
Arduino Code: (transfer this program to the Arduino)
//Developed by Rajarshi Roy
int red, green, blue; //red, green and blue values
int RedPin = 9; //Red pin 9 has a PWM
int GreenPin = 10; //Green pin 10 has a PWM
int BluePin = 11; //Blue pin 11 has a PWM
void setup()
{
Serial.begin(9600);
//initial values (no significance)
int red = 255;
int blue = 255;
int green = 255;
}
void loop()
{
//protocol expects data in format of 4 bytes
//(xff) as a marker to ensure proper synchronization always
//followed by red, green, blue bytes
if (Serial.available()>=4) {
if(Serial.read() == 0xff){
red = Serial.read();
green= Serial.read();
blue = Serial.read();
}
}
//finally control led brightness through pulse-width modulation
analogWrite (RedPin, red);
analogWrite (GreenPin, green);
analogWrite (BluePin, blue);
delay(10); //just to be safe
}
do you recommend i get a digital strip instead ?