include <Wire.h>
int LED = 9;
int x = 0;
void setup() {
  

pinMode (LED, OUTPUT);

Wire.begin(9);

Wire.onReceive(receiveEvent);

Serial.begin(9600);

}
void receiveEvent(int bytes) {
x = Wire.read(); 
}

void loop() {
int ledPWM = map(x, 0, 255, 0, 1023);
analogWrite(LED, ledPWM);
Serial.print("X is: ");
Serial.println(x);
Serial.print("PWM is: ");
Serial.println(ledPWM);
delay(1000);
}