How to connect 16*2 LCD Display with Arduino: A beginners Tutorial

In this tutorial, we will guide you to connect a 16*2 LCD with an Arduino and display some texts. By the end of this tutorial, you'll be able to set up your Arduino and write a basic program to display text on the LCD screen.

Materials Needed:

1. Arduino board (e.g., Arduino Uno)
2. LCD
3. Resistor (220-ohm)
4. Breadboard
5. Jumper wires
6. 10k-ohm potentiometer

Step 1: Building the circuit

Step 2: Coding

1// include the library code:
2#include <LiquidCrystal.h>
3
4//LiquidCrystal lcd(rs,en,d4,d5,d6,d7);
5LiquidCrystal lcd(12, 11, 4, 5, 6, 7); // put your pin numbers here
6
7void setup() {
8  lcd.begin(16, 2); // put your LCD parameters here
9  lcd.setCursor(0,0);
10  lcd.print("Good Morning USA");
11  lcd.setCursor(0,1);
12  lcd.print("Land of the free.") ;
13
14}
15void loop(){}

tep 3: Upload the Code to Arduino and See the LED Blink

1. Connect your Arduino board to your computer using a USB cable and upload the code.
2. Once the code is uploaded successfully, you will see the text “Good Morning USA Land of the free” on the screen.

Link to the code: