#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27, 16, 20);

void setup() {
  Serial.begin(9600);
  lcd.init();
  // put your setup code here, to run once:

}

void loop() {
  int sensorValue = analogRead(A0);
 //convert the analog reading (which goes from 0 - 1023) to a voltage (0 - 5) 
 float voltage = sensorValue * (5.0 / 1023.0);
 // print out the value you read:
 Serial.println(sensorValue);
 Serial.println(voltage);
 delay(500);
   lcd.setCursor(0,0);
  lcd.print("sensorValue");
  lcd.setCursor(0,1);
  lcd.print(voltage);
  // put your main code here, to run repeatedly:

}