Strobe Light with Blynk and Simple Timer Library

Need Help With My Project
3

I recently did something similar with pulsing a relay. Try this concept: Producing pulses Just adjust the times and flash the LEDS instead of the relay.

// Non-blocking pulse routine every 500ms for three times, leaving the relay activated for 100ms each time.
BLYNK_WRITE(V1)  // Virtual button on V1 to activate relay pulses
{
  int RLY = param.asInt();
  if (RLY == 1)
  {
    timerV1.setTimer(500, RelayON, 3);  // Pulse Relay ON routine three times in 500ms
  } 
}

void RelayON()
{
  digitalWrite(2, HIGH); // Activate relay
  timerV1.setTimer(100, RelayOFF, 1);  // RunRelay OFF routine once in 100ms
}

void RelayOFF()
{
  digitalWrite(2, LOW); // deactivate relay
}