#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C LCD = LiquidCrystal_I2C(0x27, 16, 2);

void setup() {
  LCD.init();
  pinMode(35, INPUT);
  Serial.begin(9600);
}

void loop() {
//write code
  int sensorReading = analogRead(35);

  int val = map(sensorReading, 0, 3076, 0, 3);
  LCD.setCursor(0, 0);
switch (val) {
    case 0: 
      LCD.print("low");
      delay(1000);
      LCD.clear();
      break;
    case 1: 
      LCD.print("medium");
      delay(1000);
      LCD.clear();
      break;
    case 2:
      LCD.print("upper");
      delay(1000);
      LCD.clear();
      break;
    case 3:
      LCD.print("high");
      delay(1000);
      break;
  }
  
}