#include <Wire.h>

void setup() {
  // put your setup code here, to run once:
  Wire.begin();
  Serial.begin(9600);
  Serial.println("\nI2C Scanner");
}

void loop() {
  byte error , address ;
  int Devices;

  Serial.println("Scanning");
  Devices = 0;
  for (address = 1; address<127;address++){
    Wire.beginTransmission(address);
    error = Wire.endTransmission();
    if(error == 0){
      Serial.print("I2C device found at adrress x0");
      if (address<16)
      Serial.print("0");
      Serial.print(address,HEX);
      Serial.print("   !");
      Devices++;
    }
  else if(error==4)
  {
    Serial.print(("Unkown error at Address 0x"));
    if (address<16)
    Serial.print("0");
    Serial.println(address,HEX);
  }
  }
  if (Devices == 0)
  Serial.println("No I2C Devices found \n");
  else
  Serial.println("done\n");
  delay(5000);
  // put your main code here, to run repeatedly:
}