so iam still learn this whole setup and i cant figure this out for the life of me.
i got stuck on the error code for having some thing plugged in to pins 0,1 for over a hour.
i know this is probably easy,i want to light up a chess board. but a little differently.
i want two use rgb leds and just have them fade thru different hues.
and just reverse the code for the white vs black squares. so all the squares wont be the same colors at the same time. how to explain this stupid easy.the white would start a blue and fade to red. the black would start at red and fade to blue. figure test it with just 2 leds then move on.
i found this bit of code at http://make.larsi.org/electronics/ATmegaX8/led_rgb/
last night, im using the one on the very bottom RGB_analog_hue.
i had no problem getting it to work fading one rgb led thru different colors ets.
so i modded the code to do the same thing but for two different leds. useing pins 5-7 and 9-11.
9-11 led fades fine but the led on pins 5-7 fades color jumps fades jumps.
see you tube link. Rgb Led fade test errr - YouTube
is it cause only 9-11 pins can do this? i can get both leds to fade right if i connect them all to ins 9-11 so i wired it right.
my code i // out what i changed. i could get the copy to forum thing to work right.
// RGB_analog_hue
// requires RGB Module
// Output Pins
#define PIN_RED 5 // red LED, connected to digital pin 9
#define PIN_GREEN 6 // green LED, connected to digital pin 10
#define PIN_BLUE 7 // blue LED, connected to digital pin 11
//#define PIN_RED2 9 // red LED, connected to digital pin 2
//#define PIN_GREEN2 10 // green LED, connected to digital pin 3
//#define PIN_BLUE2 11 // blue LED, connected to digital pin 4
#define WAIT 10 // 3ms delay
void color(int r, int g, int b)
{
analogWrite(PIN_RED, r); // write current values to LED pins
analogWrite(PIN_GREEN, g);
analogWrite(PIN_BLUE, b);
//analogWrite(PIN_RED2, r); // write current values to LED pins
//analogWrite(PIN_GREEN2, g);
//analogWrite(PIN_BLUE2, b);
}
void hsv(float H, float S, float V)
{
// http://www.easyrgb.com/index.php?X=MATH&H=21#text21
int var_i;
float R, G, B, var_1, var_2, var_3, var_h;
if (S == 0) {
R = V;
G = V;
B = V;
}
else {
var_h = H * 6;
if (var_h == 6) var_h = 0; // H must be < 1
var_i = int(var_h) ; // or ... var_i = floor( var_h )
var_1 = V * (1 - S );
var_2 = V * (1 - S * (var_h - var_i));
var_3 = V * (1 - S * (1 - (var_h - var_i)));
if (var_i == 0) {
R = V;
G = var_3;
B = var_1;
}
else if (var_i == 1) {
R = var_2;
G = V;
B = var_1;
}
else if (var_i == 2) {
R = var_1;
G = V;
B = var_3;
}
else if (var_i == 3) {
R = var_1;
G = var_2;
B = V;
}
else if (var_i == 4) {
R = var_3;
G = var_1;
B = V;
}
else {
R = V;
G = var_1;
B = var_2;
}
}
color(255 * R, 255 * G, 255 * B); // RGB results from 0 to 255
}
void setup()
{
pinMode(PIN_RED, OUTPUT); // sets the RGB pins as output
pinMode(PIN_GREEN, OUTPUT);
pinMode(PIN_BLUE, OUTPUT);
//pinMode(PIN_RED2, OUTPUT); // sets the RGB pins as output
//pinMode(PIN_GREEN2, OUTPUT);
//pinMode(PIN_BLUE2, OUTPUT);
}
// Main program
void loop()
{
for (float f = 0; f < 1; f += 0.0005) {
hsv(f, 1, 1);
delay(WAIT);
}
}
i reverse my wiring order for the second led and was able to get them to fade in reverse but i would like to be able to have control over the black and white squares so i cant really use "my wiring hack"
i wont need to control every square Independently just all the white squares do one thing and all the black do another.
