Fade 3 LEDs arduino

//source code. enjoy!
//better code in the comments (this description does not allow brackets, so i can't put it here)

int red = 5; //the first three lines are location of leds
int green = 6;
int blue = 3;

int turn = 0; //turn is whose turn is it to turn on, 0 is red, 1 is blue and 2 is green; this is just to make switching easier
int fade = 5; // amount of fade
int startblue = 0; //this is the birghness of the leds i should have named it brightblue, brightgreen etc.
int startgreen = 0;
int startred = 0;

void setup(){
pinMode(red,OUTPUT); //sets led outputs
pinMode(green,OUTPUT);
pinMode(blue,OUTPUT);

}

void loop(){

startred = startred + fade; //these three lines is the fading, it does not show up until its turn is up.
startblue = startblue + fade;
startgreen = startgreen +fade;

//first is the red leds turn which turn starts w/ 0 it faded up then down

if (turn == 0 ){

analogWrite(red,startred);

if (startred == 255){
fade = -fade; //negate the fade to go down

}
}

//once it reaches all the way done it negates the fade again to prepare the blue to fade and it switches the turn to 1 so blue can start
if (fade == -5 && startred == 0 && turn == 0){
turn = 1;
fade = -fade;

}

//blue's turn, same thing as red, fades up, then down
if (turn== 1){
analogWrite(blue,startblue);

if (startblue ==255){
fade = -fade;
}
}
//switches to green and negatives fade to prepare for green
if (turn == 1 && fade ==-5 && startblue == 0){
turn = 2;
fade =-fade;
}

if (turn == 2){
analogWrite(green,startgreen);
if (startgreen == 255){
fade = -fade;
}
}

// finally it resets to 0 to start w. red again
if (turn == 2 && fade ==-5 && startgreen == 0){
turn = 0;
fade = -fade;
}

delay (50); //delay to make it smooth
}

[withcheesepls]

//better code, with more clarity
//haven't tested myself so comment any bugs (looks ok)
int ledArray[] = {3, 5, 6}; //array with the led pins
int sizeArray = 3; //a constant to say the size of the array (change if the amount depending on LEDs you have in the array
int index = 0; //array starts at index zero
int brightness = 0; //brightness of led (starts at zero)
int fade = 5; //fade amount (change for different effect)
int de = 50; //amount of delay (change for different effect)

void setup(){
for(int i = 0; i < sizeArray; i++){
pinMode(ledArray[i], OUTPUT); //sets the led output
}
}

void loop(){

analogWrite(ledArray[index], brightness);
brightness = brightness + fadeAmount;

if (brightness == 0 || brightness == 255) {
fadeAmount = -fadeAmount ;

if(brightness == 0){
analogWrite(ledArray[index], brightness); //before you change the index you have to dim the current one all the way
delay(de);
index = (index+1) % sizeArray; //loop through the array like a circle
}

}
delay (de); //delay to make it smooth
}

[dukesnyder]

I used your code, Arduino Nano & mosfets and I am controlling 3 spools of 5 meter long LEDs with wonderful results, thanks!!

[sacmalyorum]

hi i am trying to light up all the rgb but want it to fade away on different times on LED strip how can I adjust your code

[siddharthchad]

The code that you posted in your description works fine.
But, the code that you posted in your comments isn't working so please check that out

[yuanning]

Hi! This is exactly what I want to do with my arduino! Can you tell me what registers are you using?
Thanks!

[Linkachus]

can you upload the code in pastebin so i can copy it and way better. just in case the code goes mess when i copy it from comments

[GummyBearsandChemicals]

would this work with a series of leds wired into each pin?

[perfect]

What omh did you use for each resistor?

[perfect]

What omh did you use for each resistor?