How To Work With 16/2 LCD Display

In this article, we are going to see how to work with 16/2 LCD Display using Arduino. We are going to display "Hello World" cursor from left to right. 

“The world will know you when you display what you are to the world.”

Requirements are,

1. LCD Display 16/2.
2. Arduino UNO
3. Arduino Software
4. Bread Board
5. Jumper cables

Working

We have LCD 16/2 Display and the pin configurations are:

1^st pin and 16^th pin are Ground pins

2^nd  and 15^th pins are Vcc pins

3^rd pin is contrast control pins

4^th  pin is Registry select pins

5^th pin is Read and Write pins, High to this pins is for the Read function and Low to this pin is Write function. We use Low here.

6^th pin is Enable pin which enables the Liquid Crystal.

There are 8 Data pins from the  7^th pin to 14^th pin. It can be operated from the 8-bit mode and 4-bit mode. In our case, 4-bit mode can do everything. That is using Pins 11 to 14 of the Liquid Crystal.

Circuit Diagram

As per the Circuit Diagram, we have to give the connection and move on to the Arduino Software.

Steps to follow

Step 1

 Open the Arduino Software.



Step 2

Include Liquid Crystal Header File.



Step 3

Initialize the library with the number of Interface pins.



Step 4

Setup number of rows and columns and print the message.



Step 5

In Void Loop, turn on and off the cursor with delay of 500 milliseconds.



Step 6

Verify the code and upload it to the Arduino.



Summary

From this article, we have learned how to use Liquid Crystal with Arduino. We also learned how to display a message in the LCD display. We have learned about the pins of the Liquid Crystal.