#include "Wire.h>
const int LED_PIN=9;
const int SLAVE_ADDRESS =8;

void setup() {
  Serial.begin(9600);
    Wire.begin();
  pinMode(LED_PIN, OUTPUT);

void loop() {
  Wire.requestFrom(SLAVE_ADDRESS,1);
  if (Wire.available()) {
  int brightness = Wire.read();
  analogWrite(LED_PIN, brightness);
  Serial.println(brightness);
  }
  delay(100);