Arduino – I2C 20 X 4 LCD Display - Eli The Computer Guy

I2C Control Boards allow you to connect an LCD Display to your Arduino using only 4 wires.

Note: I2C is an Addressable Communication Protocol. 0x27 should be the default address of the display. If this does not work you will have to find the address by running a sketch designed to find I2C address on an Arduino: https://playground.arduino.cc/Main/I2cScanner/

Links:

• New Liquid Crystal Library – https://bitbucket.org/fmalpartida/new-liquidcrystal/wiki/Home
• Liquid Crystal I2C Library – https://www.arduinolibraries.info/libraries/liquid-crystal-i2-c

Functional Parts in the Project:

• Arduino Uno – https://store.arduino.cc/usa/arduino-uno-rev3
• 20 x 4 I2C LCD Screen – https://amzn.to/2JVuKzn
• 560 Piece Jumper Wire Kit – https://amzn.to/2MsCLjL

#include <Wire.h> #include <LCD.h> #include <LiquidCrystal_I2C.h> LiquidCrystal_I2C lcd(0x27,2,1,0,4,5,6,7); void setup() { lcd.begin(20,4); lcd.setBacklightPin(3,POSITIVE); lcd.setBacklight(HIGH); lcd.setCursor(0,0); lcd.print("Hello, World!"); lcd.setCursor(0,1); lcd.print("This is:"); lcd.setCursor(0,2); lcd.print("An I2C Display"); lcd.setCursor(4,3); lcd.print("Kinda Cool..."); } void loop() { }

• Arduino
• I2C

Previous

Arduino – Send Email Notifications with PHP Mail Function

Next

Arduino – Find I2C Addresses (I2C Scanner)

Related Articles

*NEW

Arduino Displays – Multicolor LED (RGB LED)

Eli the Computer Guy *NEW, Arduino - Display Basics

3 Color RGB LED’s allow you to use a single LED to show multiple colors. Functional Parts in the Project: Arduino Uno – https://store.arduino.cc/usa/arduino-uno-rev3 560 Piece Jumper Wire Kit – https://amzn.to/2MsCLjL 220 Ohm Resistors – https://amzn.to/2RiiMD9 Breadboard Kit […]

Arduino

16 x 2 LCD Screen on Arduino

Eli the Computer Guy Arduino, Arduino - Display Basics

LCD Screens allow an Arduino to display specific text such s an IP address or the Temperature. Functional Parts in the Project: Arduino Uno – https://store.arduino.cc/usa/arduino-uno-rev3 LCD Screen – https://www.adafruit.com/product/1447 Potentiometer (50K) – https://amzn.to/2N1NH8h 220 Ohm […]

*NEW

Arduino ArduCam – Motion Detection Spycam (PIR, RTC, SD)

Eli the Computer Guy *NEW, Arduino ArduCam

This project allows you to create a Motion Detection Spycam with a PIR Sensor, and ArduCam, and a Data Logging Shield with Real Time Clock. This project takes a pictures when motion is detected, saving […]

Be the first to comment

Leave a Reply Cancel reply

You must be logged in to post a comment.

DONATE

If you want to tip a few dollars for the education videos.

Search for: