// INVOKE BUILT-IN LED
/*int ledpin=13;
void setup() {
  pinMode(ledpin, OUTPUT); // put your setup code here
}

void loop() {
  digitalWrite(ledpin, HIGH);
  delay (1000); 
  digitalWrite(ledpin, LOW);
  delay(1000);

}*/




// BLINK LED
/*int ledpin = 7;
void setup() {
   pinMode(ledpin,OUTPUT); //put your setup code here
}

void loop() {
digitalWrite(ledpin, HIGH);
delay (1000);
digitalWrite(ledpin, LOW);
delay (1000);

}*/




// RGB BLINKING
/*int red_led = 11;
int green_led = 10;
int blue_led = 9;

void setup() {
pinMode(red_led, OUTPUT);
pinMode (green_led, OUTPUT);
pinMode(blue_led, OUTPUT); // put your setup code here,
}
void loop() {
led_color(0,255,255);
delay(1000);
led_color(255,0,255);
delay (1000);
led_color(255,255,0);
delay(1000);
// put your main code here, to run repeatedly;
}
void led_color(int red_value,int green_value,int blue_value)
{
analogWrite(red_led, red_value);
analogWrite(green_led, green_value);
analogWrite(blue_led, blue_value);
}*/




//SENSOR SETUP
/*#include "DHT.h"
#define DHTPIN 2
#define DHTTYPE DHT22

DHT dht(DHTPIN, DHTTYPE);

void setup(){
  Serial.begin(115200);
  dht.begin();
}
void loop(){
  float temperature = dht.readTemperature();

// if (isnan(temperature)) {
// Serial.println(F("Failed to read from DHT sensor!"));
//return;}
Serial.print("Temperature; ");
Serial.println(temperature);
delay(2000);
}*/



//LCD SETUP AND HELLO WORLD
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27, 16, 2);
void setup() {
// Initalise the LCD
lcd.init();
// Turn on the LCD backlight
lcd.backlight( );
// Put text on the LCD
lcd.print("Hello World!");
}
void loop(){
// No code needed for this part, you can put your code here if you want.
}