int val, leds[3] = {3,5,6};
void setup() {
Serial.begin(9600);
for (int i = 0; i < 3; i++) pinMode(i, OUTPUT);
}
void loop() {
for (int i = 0; i < 3; i++) {
val = random(255);
analogWrite(leds[i], val);
Serial.print(val);
Serial.print(" ");
}
Serial.println("");
delay(500);
}