#define fan_1 11
#define fan_2 10

byte pines[] = {red_1, blu_1, gre_1, red_2, blu_2, gre_2};
byte cant_pin;
int veloc = 5;

void setup() {
    Serial.begin(115200);
    pinMode(gre_1,OUTPUT); 
    pinMode(red_2,OUTPUT); 
    pinMode(blu_2,OUTPUT); 
    pinMode(gre_2,OUTPUT); 
    cant_pin = sizeof(pines);
}

void loop() {
    byte b, g, r;
    for (r=0; r<86; r++) {
        b = 170 - r;
        g = 85 - r;
        rgb(r, b, g);
        delay(veloc);
    }
    for (g = 0; g<86; g++) {
        r = g + 85;
        b = 85 - g;
        rgb(r, b, g);
        delay(veloc);
    }
    for (b=0; b<86; b++) {
        r = b + 170;
        g = b + 85;
        rgb(r, b, g);
        delay(veloc);
    }
    g=170;
    b=85;
    for (r=255; r>169; r--) {
        g++; b++;
        rgb(r, b, g);
        delay(veloc);
    }
    b=170;
    r=170;
    for (g=255; g>169; g--) {
        b++; r--;
        rgb(r, b, g);
        delay(veloc); 
    }
    r=85;
    g=170;
    for (b=255; b>169; b--) {
        r--; g--;
        rgb(r, b, g);
        delay(veloc);
    }
    for (byte r=0; r<256; r++) {
        byte b = r - 85;
        byte g = b - 85;
        analogWrite(red_1, b);
        analogWrite(blu_1, g);
        analogWrite(gre_1, r);
        analogWrite(red_2, g);
        analogWrite(blu_2, r);
        analogWrite(gre_2, b);   
        //Serial.println("R = "+String(i)+", B = "+String(b)+", G = "+String(g));
        delay(10);
    }
    for (byte i=0; i < cant_pin; i++) {
        byte r = random(256);
        analogWrite(pines[i], r);
        delay(100);
    }
    analogWrite(blu_1, 0);
    analogWrite(blu_2, 0);
    analogWrite(red_1, 0);
    analogWrite(red_2, 0);
    analogWrite(gre_1, 0);
    analogWrite(gre_2, 0);
    delay(10000);
}

void rgb(byte rojo, byte  azul, byte verde) {
    analogWrite(red_1, rojo);
    analogWrite(blu_1, azul);
    analogWrite(gre_1, verde);
    analogWrite(red_2, rojo);
    analogWrite(blu_2, azul);
    analogWrite(gre_2, verde); 
}