ESP32 with LCD

#include <Wire.h>

void setup() {

  Wire.begin();

  Serial.begin(115200);

  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("Unknow 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);          

}