#include <Wire.h>
#include <LiquidCrystal_I2C.h>

void setup() {
  Wire.begin();
  Serial.begin(9600);
  
  Serial.println("\nI2C Scanner");

  byte error, address;
  int 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.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.println("No I2C devices found\n");
  else
    Serial.println("done\n");


    LiquidCrystal_I2C lcd(0x27,16,2);
    lcd.init();
    lcd.begin(16,2);
    lcd.blink();
    lcd.backlight();
    lcd.print("hello");
    lcd.setCursor(5,1);
    lcd.print("world");
    
}

void loop() {
  // Empty loop
}