LCD_1602A模块的地址如何查询？

#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++ ){
     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(Unknow error at address 0x);
      if (address  16)
        Serial.print(0);
      Serial.println(address, HEX);
    }
  }
  if (nDevices == 0)
    Serial.println(No I2C devices foundn);
  else
    Serial.println(donen);
  delay(5000);  wait 5 seconds for next scan
}