#include <Wire.h>
// Include the required Wire library for I2C

int LED = 10;

int x = 0;

void setup() {

// Define the LED pin as Output

pinMode (LED, OUTPUT);

// Start the I2C Bus as Slave on address 9
Wire.begin(9);
// Attach a function to trigger when something is received.
Wire.onReceive(receiveEvent);
//bit rate for data transfer over Serial communication
Serial.begin(9600);

}

void receiveEvent(int bytes) {
x = Wire.read(); // read one character from the I2C
}

void loop() {
//potentiometer value from sensor
Serial.print("X is: ");
Serial.println(x);

if (x==0){
analogWrite(LED, LOW);
}
else 

{
analogWrite(LED, HIGH);

}

delay(100);
}