Embedded Systems

/* Hello! This is Module_1-4

Circuit Connections:
** LCD
               Ground                    => Gnd
               Power                     => Vcc
               Contrast                  => Potentiometer
               RS                        => PIN_0
               RW                        => Gnd
               E                         => PIN_1
               DB0                       => Gnd
               DB1                       => Gnd
               DB2                       => Gnd
               DB3                       => Gnd
               DB4                       => PIN_2
               DB5                       => PIN_3
               DB6                       => PIN_4
               DB7                       => PIN_5
               LED Anode                 => Vcc
               LED Cathode               => Resistor 220Ω =>  Gnd
** Potentiometer
               Terminal 1                => Gnd
               Wiper                     => LCD_Contrast
               Terminal 2                => Vcc
*/ 

//include the library
#include <LiquidCrystal.h>

#define RS 0              //give the name "RS " to PIN_0
#define EN 1              //give the name "EN " to PIN_1
#define DB4 2            //give the name "DB4 " to PIN_2
#define DB5 3            //give the name "DB5 " to PIN_3
#define DB6 4            //give the name "DB6 " to PIN_4
#define DB7 5            //give the name "DB7 " to PIN_5

//configure the library with Arduino Uno - LCD interface
LiquidCrystal lcd(RS, EN, DB4, DB5, DB6, DB7);

//The setup() function initializes and sets the initial values
//It will only run once after each power up or reset
void setup() {
//configure the LCD's columns and rows
lcd.begin(16, 2);
//print a message
lcd.print(" Hello! This is");
//go to: first column, second row
lcd.setCursor(0,1);
//print a message
lcd.print("   Module_1-4");
}

//loops consecutively
void loop() {
  ; //do nothing
}