tiltSensor.ino

#include <Wire.h>
#include <LiquidCrystal_I2C.h>
 
LiquidCrystal_I2C lcd(0x27,16,2);
const int CDS = 0;
const int led = 3;
const int tilt_port = 1;

String first_message = "";

void setup()
{
 pinMode(led,OUTPUT);
 //Serial.begin(9600);
 lcd.init();
}

void loop()
{
 int tilt_value;
 while(1)
 {  
  lcd.setCursor(0, 0);
  lcd.backlight();
  tilt_value=analogRead(tilt_port);
  //Serial.println(tilt_value);
  if(tilt_value>500) {
    digitalWrite(led, LOW);
    first_message = "    stable     ";   
  } else {
    digitalWrite(led, HIGH);
    first_message = "sloping surface";
  }
    lcd.print(first_message);
  }
}