Liquid Crystal Display With Arduino Mega 2560

In this article I will explain about Liquid Crystal Display with Arduino Mega 2560.

Introduction:

In this article I will explain about LCD display connection and we will see how to connect it with the Arduino Mega 2560.

Parts Of Lists:
  • Arduino Mega 2560
  • LCD Display
  • Bread Board
  • Potentiometer
  • HookUp Wires
LCD Display:
  • LCD display is a flat panel display.
  • It does not emit light directly.
  • It will display the arbitrary images or fixed images with less information.
Connection:

Step 1:
Connection from LCD To Arduino Mega 2560,

            Figure 1: LCD Display
  • Fix the LCD display from 16 to 02 in the BreadBoard.
  • The 16 from the LCD can be connected to the Gnd.
  • The 15 from the LCD can be connected to the Vcc.
  • The 14 from the LCD can be connected to the Digital pin 07.
  • The 13 from the LCD can be connected to the Digital pin 08.
  • The 12 from the LCD can be connected to the Digital pin 09.
  • The 11 from the LCD can be connected to the Digital pin 10.
  • The 01 from the LCD can be connected to the Gnd.
  • The 02 from the LCD can be connected to the Vcc.
  • The 03 from the LCD can be connected to the potentiometer of centre pin.
  • The 04 from the LCD can be connected to the Digital pin 11.
  • The 05 from the LCD can be connected to the Gnd.
  • The 06 from the LCD can be connected to the Digital pin 12.
Step 2: Connection from Potentiometer to ArduinoMega2560,

Figure 2: Potentiometer
  • Take the first pin connected to Gnd of the ArduinoMega2560.
  • Take the second pin connected to 3 pin of the ArduinoMega2560.
  • Take the third pin connected to the Vcc of the ArduinoMega2560.
Programming:
  1. #include < LiquidCrystal.h > // Includes the library code  
  2.     LiquidCrystal lcd(07, 08, 09, 10, 11, 12);  
  3. void setup()  
  4. {  
  5.     lcd.begin(16, 2);  
  6.     lcd.print("C# Corner");  
  7. }  
  8. void loop()  
  9. {  
  10.     lcd.print(millis() / 1000);  
  11. }  
Before uploading the program add the Liquid Crystal library

Explanation:
  • In this we can simply see the name or any content we type in the lcd.Printf statement.
  • The LCD should be kept as 16 to 2.
  • This is used in schools, buses, shopping malls, etc.
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