lab2_demo_pwm_fade.ino

#define LED_PIN         3

#define MIN_BRIGHTNESS  20
#define MAX_BRIGHTNESS  90

const int tickDelay = 20;

int brightness = MIN_BRIGHTNESS;
int brightnessShift = 1;

void setup() 
{
  
}

void loop() 
{
  // Muudame eredust
  brightness += brightnessShift;
  
  // Jõudes valgustugevuse piirideni, muudame ereduse muutumise suunda
  if (brightness >= MAX_BRIGHTNESS || brightness <= MIN_BRIGHTNESS) 
  {
    brightnessShift = -brightnessShift;
  }

  // Kasutades PWMi, uuendame LEDi eredust
  analogWrite(LED_PIN, brightness);

  delay(tickDelay);
}