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6 - Displays

By default, VEX displays the default legacy UI on the V5 Brain's screen.

This...this is boring. Fortunately, DevilLib includes some premade displays to apply to the V5 Brain's screen. In addition, you can create your own custom displays using the LVGL library included with PROS.

Built-In Displays​

Toast Display

This is an error overlay designed to be used in conjunction with other displays. It shows any errors or warning that were caught by the system. This is very useful to warn the team if any motors/sensors are disconnected or not working properly.

    // Create a ToastDisplay
    // This MUST be a shared_ptr since it runs a `BackgroundTask`
    std::shared_ptr<ToastDisplay> toastDisplay = std::make_shared<ToastDisplay>();

    MyRobot() {
        // Start the ToastDisplay's background task
        toastDisplay->start();

        // ...
    }

Custom Displays​

You can also create your own custom displays using the LVGL library included with PROS. This is a more advanced topic, but it allows you to create completely custom interfaces for your robot.

class ExampleDisplay : DisplayBase
{
public:
    ExampleDisplay()
    {
        static auto exampleObject = lv_obj_create(getRootContainer());
    }
};

You can refer to the LVGL documentation for more information on how to use it: LVGL API Reference