Scan I2C Bus

void I2C_Adresses(){
  byte error, address;
  int nDevices;
  Serial.println("Scanning...");
  nDevices = 0;
  for(address = 1; address < 127; address++ ){
    // The i2c_scanner uses the return value of
    // the Write.endTransmisstion to see if
    // a device did acknowledge to the address.
    Wire.beginTransmission(address);
    error = Wire.endTransmission();
    if (error == 0){
      Serial.print("I2C device found at address 0x");
      if (address<16){
        Serial.print("0");
      }
        Serial.print(address,HEX);
        Serial.println("  !");
        nDevices++;
    }
    else if (error==4){
      Serial.print("Unknown error at address 0x");
      if (address<16){
        Serial.print("0");
      }
      Serial.println(address,HEX);
    }
  }
  if (nDevices == 0){
    Serial.print(address,HEX);
    Serial.println(" No I2C devices found\n");}
  else{
    Serial.println("done\\");}
}