int Red = 3, Blue = 6, Green = 5;


void DejrndBarvu(){
  analogWrite(Red, random(255));
  analogWrite(Green, random(255));
  analogWrite(Blue, random(255));
  delay(500);
}

void BerCaru(){
  analogWrite(Red, 0);
  analogWrite(Green, 0);
  analogWrite(Blue, 255);
  delay(350);
  analogWrite(Red, 0);
  analogWrite(Green, 0);
  analogWrite(Blue, 0);
  delay(350);
}

void setup() {
pinMode(Blue, OUTPUT);
pinMode(Green, OUTPUT);
pinMode(Red, OUTPUT);
Serial.begin(9600);

}

void loop() {

DejrndBarvu();


}