I2c LCD

gistfile1.txt

#include <Wire.h>
 #include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x3F, 2, 1, 0, 4, 5, 6, 7, 3, POSITIVE);

void setup() {

  lcd.begin(16,2);
  Serial.begin(9600);
  

}

void loop() {
  if(card== "45632187"){
  lcd.print("GreenHacker");
  lcd.println(normal_water);
  lcd.print("V_Water=");
  }else{
  lcd.print("wrong");
  lcd.println(normal_water);
  lcd.print("V_Water=");
  
  
  
  }
}