ATtiny85 + Flashing LEDs + POT

//LED1 double flash than LED2 double flash, speed between LED1 and LED2 adjustable by POT.
//This code is for ATTiny85, see also code for Arduino UNO.


int val = 0;

void setup() {
  // put your setup code here, to run once:
  pinMode(0, OUTPUT);
  pinMode(1, OUTPUT);
}

void loop() {
  val = analogRead(3);

  digitalWrite(0, HIGH);
  delay(400);
  digitalWrite(0, LOW);
  delay(100);
  digitalWrite(0, HIGH);
  delay(100);
  digitalWrite(0, LOW);
  delay(val);
  digitalWrite(1, HIGH);
  delay(400);
  digitalWrite(1, LOW);
  delay(100);
  digitalWrite(1, HIGH);
  delay(100);
  digitalWrite(1, LOW);
  delay(val);
}