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It’s highly recommended! I2C LCD Module (PCF8574 IO Expander) This article will provide you with more in-depth information about Arduino LCD 16×2 interfacing, how LCDs work, how to use the LiquidCrystal library functions, create custom LCD characters & emojis, and more. The tutorial linked below is highly recommended to learn more about Arduino LCD interfacing & LiquidCrystal Library. As there is a specific function controller on the LCD itself controlling the display while reading the user’s commands & data (the Hitachi HD44780 controller). Controlling all of these individual dots is a tedious task for our Arduino. The LCD module consists of 16×2 character cells (2 rows x 16 columns), each cell of which is 5×8 dots.

This is the controller that controls the LCD unit and we communicate with using Arduino to send commands and text messages. Which is the small black circular chip on the back of the LCD module itself. The 16×2 alphanumeric display is based on the Hitachi HD44780 driver IC. LCD (Liquid Crystal Display) is typically used in embedded systems to display text and numbers for the end user as an output device. Arduino I2C LCD Common Issues Troubleshooting.Arduino LiquidCrystal_I2C Library Useful Function.Arduino Multiple I2C LCD Displays Example.Arduino I2C LCD Custom Characters Display.Without further ado, let’s get right into it! Table of Contents We’ll display some text and numbers on the I2C LCD screen, make the text scroll on the LCD, and also create some custom characters and emojis. We’ll start off by explaining how the I2C LCD module works, its pinout, and how to connect it to your Arduino board. Multiple I2C LCD Displays Interfacing With Arduino.Arduino I2C LCD 16×2 Custom Characters Display.Arduino I2C LCD 16×2 Scrolling Text Display.Arduino I2C LCD 16×2 Text + Variables Display.We’ll implement the following examples in this tutorial: You’ll learn how to use I2C LCD with Arduino and create some example projects to practice what we’ll be learning in this tutorial. This is a comprehensive guide for Arduino I2C LCD 16×2 Interfacing.