#include <LiquidCrystal.h>
int led=2, a=A3, rs=13, e=12, d4=7,d5=6,d6=5,d7=4;
LiquidCrystal lcd(rs, e, d4,d5,d6,d7);
void setup() {
  pinMode(led, OUTPUT);
  pinMode(a, INPUT);
lcd.begin(16,2);
Serial.begin(9600);
}

void loop() {

int value = analogRead(a);
  Serial.println(value);
  if(value >= 150)
  {
    digitalWrite(led, HIGH);
    lcd.print(value);
    lcd.clear();
  }
  else
  {
    digitalWrite(led, LOW);
    lcd.print("OFF");
  }
  lcd.setCursor(0, 0);
}