#include <Wire.h>
 #include <LiquidCrystal.h>
LiquidCrystal lcd(2,3,4,5,6,7);
void setup()
{
    Wire.begin();
    Serial.begin(115200);
    //Serial.println("\nI2C Scanner");

    lcd.begin(16, 2);
    

}
 
void loop()
{

    lcd.setCursor(2, 0);
    lcd.print("I2C SCANNING!");
    Serial.println("I2C Scanning...");
    delay(5000);


    byte error, address;
    int nDevices;
 
    
 
    nDevices = 0;
    for(address = 0; 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("!");
            // write data to LCD:

            lcd.setCursor(0, 1); 
            
            lcd.print("I2C Found: 0x");
            lcd.setCursor(13, 1); 
            
            lcd.print(address, HEX);
            //---------------------------------------
            
            nDevices++;
        }
        else if (error==4)
        {
            Serial.print("Unknow error at address 0x");
            if (address<16)
                Serial.print("0");
            Serial.println(address,HEX);
        }
    }
    if (nDevices == 0)
    {
      delay(5000);
        Serial.println("No I2C devices found\n");
        lcd.setCursor(0, 1); 
        lcd.print("NO I2C FOUND");

        }
    else
        delay(10000);
        Serial.println("done\n");
        clr(1);
        lcd.setCursor(6, 0); 
        lcd.print("DONE!    ");
    delay(30000);
 }

void clr(int x) {
  lcd.setCursor(7, x-1);
  //lcd.print("<--Remove");
  delay(200);
  lcd.setCursor(0,x-1);
  lcd.print("                   ");
}