liquid crystal arduino library for the dfrobot i2c lcd displays for sale

This is a 20x4 Arduino compatible LCD display module with high speed I2C interface. It is able to display 20x4 characters on two lines, whitecharacterson blue background.

Generally, LCD display will run out of Arduino pin resource. It needs 6 digital pins and 2 power pin for a LCD display. If you want to build a robot project, it will be a problem with Arduino UNO and LCD display.

This I2C 20x4 LCD display module is designed for Arduino microcontroller. It is using I2C communication interface, With this I2C interface, only 2 lines (I2C) are required to display the information on any Arduino based projects. It will save at least 4 digital / analog pins on Arduino. All connector are standard XH2.54 (Breadboard type). You can connect it with jumper wire directly.

This 1602 LCD module has 8 I2C address in all, from 0x20 to 0x27. You can set one according to your requirements, avoiding the confliction of I2C address. And its contrast can be adjusted manually.

This board is able to be powered by 5V or 3.3V which make it compatible with both Arduino 101 or Arduino  DUE,  intel edison 3.3V system and standard Arduino UNO/Arduino Mega 5V system.

The second step is to add the libraries to your arduino ide, to do that you go to sketch-> include library -> add zip library then find it in files. If it works, you should get a message saying it worked.

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Hello friends welcome back to Techno-E-solution, In previous video we see how to interface LCD 16×2 to Arduino Uno, but there are very complicated circuits, so in this tutorial, I"ll show you how to reduce circuitry by using I2C module which is very compact & easy to connection. Simply connect I2C module with LCD parallel & connect I2C modules 4 pins to Arduino. I2C module has 4 output pins which contains VCC, GND, SDA, SCL where 5V supply gives to I2C module through VCC & GND to GND of Arduino. SDA is a data pin & SCL is clock pin of I2C module. To interface LCD and I2C with Arduino we need Liquid Crystal I2C Library in Arduino IDE software.

To make this project we need Arduino Liquidcrystal library in Arduino IDE. Follow following steps to add this library in Arduino IDE software.Open Arduino IDE Software.

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The library allows to control I2C displays with functions extremely similar to LiquidCrystal library. THIS LIBRARY MIGHT NOT BE COMPATIBLE WITH EXISTING SKETCHES.

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Shield for Arduino with popular 2x16 characters LCD display and five buttons at your disposal. The screen uses 4, 5, 6, 7, 8, 9 and 10 pins. Reading the status of the buttons is done through an analog signal, thanks to this solution all five buttons use only one A0 output.

The module works with standard Arduino Liquid Crystal library. In order to start the module it is necessary to provide connection of the outputs in the library according to the table below: