#include <Wire.h>
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27,16,2); // set the LCD address to 0x27 for a 16 chars and 2 line display
#define ldrPin 34
#define ledPin 4
void setup()
{
pinMode(ldrPin,INPUT);
pinMode(ledPin,OUTPUT);
lcd.init(); // initialize the lcd
// Print a message to the LCD.
lcd.backlight();
lcd.setCursor(0,0);
lcd.print("Hello, world!");
lcd.setCursor(0,1);
lcd.print("Skagata IOT");
delay(3000);
}
void loop()
{
int ADC = analogRead(ldrPin);
if(ADC < 2000){
digitalWrite(ledPin,LOW);
}
else{
digitalWrite(ledPin,HIGH);
}
lcd.clear();
lcd.setCursor(0,0);
lcd.print("ADC= ");
lcd.print(ADC);
delay(500);
}