You can try out the Littlev Graphics Library using only your PC without any development board. Write a code, run it on the PC and see the result on the monitor. It is cross-platform: Windows, Linux and OSX is also supported!
Eclipse CDT is C/C++ IDE. You can use other IDEs as well but in this tutorial the configuration for Eclipse CDT is shown.
Eclipse is a Java based software therefore be sure Jave Runtime Environment is installed on your system.
sudo apt-get install default-jre
You can download Eclipse's CDT from: https://eclipse.org/cdt/. Start the nstaller and choose *Eclipse CDT* from the list
The PC simulator uses the SDL 2 cross platform library to simulate a TFT display and a touch pad.
On Linux you can easily install SDL2 using a terminal:
apt-cache search libsdl2(e.g. libsdl2-2.0-0)
sudo apt-get install libsdl2-2.0-0(replace with the found version)
sudo apt-get install libsdl2-dev
sudo apt-get install build-essential
If you are using Windows firstly you need to install MinGW and do the following steps to add SDL2:
On OSX you can easily install SDL2 with brew: brew install sdl2
If something is not worging I suggest this tutorial to get statered with SDL
A pre-configured graphics library project (based on the lates release) is always available in PC simulator project. You can find it on GitHub or on the Download page. The project is configured for Eclipse CDT.
Run Eclipse CDT. It will show a dialogue about the workspace path. Before accepting it check that path and copy (and unzip) the downloaded pre-configured project there. Now you can accept the workspace path. Of course you can modify this path but in that case copy the projct to the that location.
Close the start up window and go to File->Import and choose General->Existing project into Workspace.
Browse the root directory of the project and click Finish
On Windows you have to do two additional things:
Now you are ready to run the Littlev Graphics Library on your PC. Click on the Hammer Icon on the top menu bar to Build the project. If you have done everything right you will not get any errors. Note that on some systems additional steps might be required to "see" SDL 2 from Eclipse but in most of cases the configurtions in the downloaded project is enough.
After a success build click on the Play button on the top menu bar to run the project. Now a window should appear in the middle of your screen
Now everything is ready to use the Littlev Graphics Library in the practice or begin the developement on your PC.
To create your first LittlevGL GUI you should learn the Basics Basics
LittlevGL - Open-source Embedded GUI Library
LittlevGL is a free and open-source graphics library providing everything you need to create embedded GUI with easy-to-use graphical elements, beautiful visual effects and low memory footprint.
If you like LittlevGL, please
support its deveopment!
The founder of Littlev Graphics Library (LittlevGL) and related software modules is:
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