Untitled

#include <Wire.h> 
void setup() { 
  Wire.begin(); 
  Serial.begin(9600); 
  Serial.println("\nI2C Scanner"); 
} 

void loop() { 
  byte error, address; 
  int nDevices; 
  Serial.println("Scanning..."); 
  nDevices = 0; 
  for(address = 1; address < 127; 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.println(address, HEX); 
      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.println("No I2C devices found\n"); 
  } 
  else { 
    Serial.println("done\n"); 
  } 
  delay(5000); 
}