At this point, we have an image based on the Yocto Project with PiTFT display support up and running on our Raspberry Pi. In this section, we will develop a graphical application that we can use with our fancy touchscreen. When developing graphical applications, a couple of different frameworks exist. Qt is one of the most famous graphical frameworks for embedded devices and exists in a free software version. In this section, we will go through how to set up and develop a graphical application for embedded Linux environments using Qt and EGLFS. Qt is a cross-platform application framework, so besides being able to run on various types of hardware, it can also be used in many different software ...
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