We developed a software in QT 5.2 which uses a VIA VAB-820 SBC. The software use (in kiosk mode) OpenGL ES 2.0 (3D graphics through Vivante GPU), serial ports, USB, CAN BUS, etc.
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The following pack you will find a functional image of linux for QT 4.8 and everything needed for compilation of the new linux.
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We need a minimalist system (small and low load in memory) with the drivers (GPU, serial, can, etc) to start our application in kiosk mode to boot the system.
https://d2phydb95qamfd.cloudfront.net/products/software/amos-820/Linux+HMI+BSP/[login to view URL]
Best Regard