Basic Arduino Mega tutorial on How to Control LCD Module

loydjayme25(61)

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lcd module.jpg

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A Liquid Crystal Displace is a flat panel display that uses light modulating properties of liquid crystals.
To know more about arduino : Click here

What Will I Learn?

You will learn on how to Control LCD module
You will learn on how to use Arduino Mega
You will learn on how to use LiquidCrystal Library

Requirements

LCD Module
Arduino Mega
Breadboard
Jumping wires
10k ohm Potentiometer

Difficulty

Basic

Tutorial Contents

Step 1: Physical Connection
circuit diagram.jpg

LCD Module Pin outs

lcd pin config.jpg
Connections :

LCD pins 1,5, and 16 to the Ground
LCD pins 2 and 15 to the VCC
LCD pins 4,6,11,12,13 and 14 to digital pins of Arduino
The middle pin of the Potentiometer to the LCD pin 3, others will be on VCC and Ground.

Step 2: Connection to IDE
Where to find the LiquidCrystal Library ?
go to Sketch > Include Library > then, find the LiquidCrystal Library.

and now, the library is on the sketch after clicking.

After that, you must select the board :
Open your IDE , go to Tools > Board > then choose Arduino/Genuino Mega or Mega 2560.

Step 3: Code
code 2.jpg

Code Block

    /*
    * Basic Arduino Mega Tutorial on how to Control LCD Module
   * Created by Loyd Stephen Jayme
    * https://utopian.io/@loydjayme25
  
    */
    #include  // includes the LiquidCrystal Library 
    LiquidCrystal lcd(1, 2, 4, 5, 6, 7); // Creates an LC object. Parameters: (rs, enable, d4, d5, d6, d7) 
    void setup() { 
     lcd.begin(16,2); // Initializes the interface to the LCD screen, and specifies the dimensions (width and height) of the display } 
    }
    void loop() { 
     lcd.print("Arduino"); // Prints "Arduino" on the LCD 
     delay(3000); // 3 seconds delay 
     lcd.setCursor(2,1); // Sets the location at which subsequent text written to the LCD will be displayed 
     lcd.print("LCD Tutorial"); 
     delay(3000); 
     lcd.clear(); // Clears the display 
     lcd.blink(); //Displays the blinking LCD cursor 
     delay(4000); 
     lcd.setCursor(7,1); 
     delay(3000); 
     lcd.noBlink(); // Turns off the blinking LCD cursor 
     lcd.cursor(); // Displays an underscore (line) at the position to which the next character will be written 
     delay(4000); 
     lcd.noCursor(); // Hides the LCD cursor 
     lcd.clear(); // Clears the LCD screen 
    }