BB.NSK.Display.TestCard (bb_nsk v0.1.2)

A screen exercising text and each of the basic shapes, for checking that the panel is wired up and that the rendering pipeline is the right way up.

Show it on the device, naming your robot:

iex> BB.NSK.Display.TestCard.show(MyBot.Robot)

screen/0 is pure, so the layout can be worked on from the host without hardware — see the previewing section of CLAUDE.md.

Summary

screen()

@spec screen() :: Emerge.tree()

@spec show(module(), keyword()) :: :ok | {:error, term()}