#include <Wire.h>

#define SLAVE_ADDRESS 0x08
#define LED_PIN D6

int receivedValue = 0;

void setup() {

  pinMode(LED_PIN, OUTPUT);

  Wire.begin(SLAVE_ADDRESS);
  Wire.onReceive(receiveEvent);
}

void loop() {
}

void receiveEvent(int bytes) {

  receivedValue = Wire.read();

  for (int i = 0; i < receivedValue; i++) {

    digitalWrite(LED_PIN, HIGH);
    delay(300);

    digitalWrite(LED_PIN, LOW);
    delay(300);
  }
}