liquid crystal arduino library for the dfrobot i2c lcd displays factory

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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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In the Arduino community, there is a library, LiquidCrystal_I2C, which is popular for driving 16x2 LCD displays over I2C. I"ve created a version that supports both Arduino and Raspberry PI (Linux I2C, really). For the most part, the source code is the same as what I forked, but it has been refactored so that the code that interfaces with the actual device (the platform-specific code) is created in a compile-time factory (and comes from a library on Raspberry PI). The example programs have been modified to work on both platforms. Autotools is supported on Linux.

For those of your who might be wanting to support both Linux and Arduino platforms with a single set of source code, you might find this implementation of the DFRobot I2C LCD code helpful.

I2C_LCD is an easy-to-use display module, It can make display easier. Using it can reduce the difficulty of make, so that makers can focus on the core of the work.

We developed the Arduino library for I2C_LCD, user just need a few lines of the code can achieve complex graphics and text display features. It can replace the serial monitor of Arduino in some place, you can get running informations without a computer.

More than that, we also develop the dedicated picture data convert software (bitmap converter)now is available to support PC platform of windows, Linux, Mac OS. Through the bitmap convert software you can get your favorite picture displayed on I2C_LCD, without the need for complex programming.

Select the board: Click Tools > Board > "Arduino Duemilanove or Diecimila"(Seeeduino V3.0 Or early version), "Arduino Uno"(Seeeduino Lotus or Seeeduino V4.0).

One of the most widely used information display elements in the Arduino world is the 16×2 LCD (Liquid Crystal Display). When manufacturing an electronic system, it can be interesting to have it give us some information about its status without having to connect it to a computer or to another system such as a smartphone. The 16×02 LCD screen is supplied with a large number of Arduino kits and is very sufficient for a large number of applications.

The 16×2 LCD screen can be found mounted on a shield with the bonus of a few buttons to create simple programmable interfaces to display values and control your Arduino project. All this while making the installation much easier.

Liquid crystal displays make use of the light modulation property of liquid crystals. Liquid crystal displays consist of two layers of polarizers, with perpendicular polarization directions, sandwiching two glass plates between which the liquid crystals are placed. On the glass plates is a matrix of electrodes for each pixel. A voltage applied between the electrodes of a pixel causes a change in the orientation of the molecules and thus the transparency of the pixel, which may or may not allow the light of the backlight to pass through.

Once your module is correctly connected, you can modify the following code to obtain the desired functionality. In the following example, we define a function that will read the value of the buttons and execute an action according to the button pressed.

For each button pressed, the name and value of the button are displayed. Your shield may be different depending on the supplier and version. If this is the case, this code will allow you to easily modify the button detection values.

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