Led Strobe Lights (Multi Patterns) Help

Other Hardware LEDs and Multiplexing
13

This should do the same thing without blocking. I have not compiled or tested this code, so there could be some errors.

This function could be added anywhere to give the fading as it is self contained.

#define	FADE_IN	0
#define	FULL_BRIGHT	1
#define	FADE_OUT	2

#define	FADE_DELAY	45	//ms
#define	FULL_DELAY	70	//ms

#define	LED_PIN		5
#define	FADE_MAX	30	// max PWM value
#define	FADE_MIN	1

void Beacon()
{
  static uint32_t	nextWakeup = 0;
  static uint8_t	currentState = FADE_IN;
  static uint8_t	fadeValue = FADE_MIN;

  if (millis() <= nextWakeup)
    return;  // do nothing as time has not expired

  switch (currentState)
  {
    case FADE_IN:
      analogWrite(LED_PIN, fadeValue++);
      if (fadeValue >= FADE_MAX)
      {
        currentState = FULL_BRIGHT;
        fadeValue = FADE_MAX;
      }
      nextWakeup = millis() + FADE_DELAY;
    break;

    case FULL_BRIGHT:
      digitalWrite(LED_PIN, HIGH);
      currentState = FADE_OUT;
      nextWakeup = millis() + FULL_DELAY;
    break;

    case FADE_OUT:
      analogWrite(LED_PIN, fadeValue--);
      if (fadeValue <= FADE_MIN)
      {
        currentState = FADE_IN;
	fadeValue = FADE_MIN;
      }
      nextWakeup = millis() + FADE_DELAY;
    break;

    default:	// error catch all - restart the sequence
      currentState = FADE_IN;
      fadeValue = FADE_MIN;
    break;
  }

  return;
}