AT_tiny_twoLEDfade.ino

// Define pins for the LEDs
#define LED_PIN0 0
#define LED_PIN1 1


void setup() {
  pinMode(LED_PIN0, OUTPUT); 
  pinMode(LED_PIN1, OUTPUT);  

}

void loop() {
  fadeInOut(LED_PIN0);
  fadeInOut(LED_PIN1);
}

void fadeInOut(uint8_t pin) {
  for (int brightness = 0; brightness <= 254; brightness += 2) { 
    analogWrite(pin, brightness);
    delay(30);  
  }

  for (int brightness = 254; brightness >= 0; brightness -= 2) {
    analogWrite(pin, brightness);
    delay(30);  
  }

  // Ensure LED is completely off at the end
  analogWrite(pin, 0);
}