lcd_display v0.2.0

LcdDisplay.DisplayController (lcd_display v0.2.0) View Source

Wraps a given display driver and controls the display using that driver.

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Types

display_command()
display_driver()

Functions

child_spec(init_arg)

Returns a specification to start this module under a supervisor.

execute(pid, command)

Delegates the specified operation to the display driver, and updates the state as needed.

start_link(display_driver)

Starts a display driver process and registers the process with a composite key of driver module and display name.

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display_command()

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Specs

display_command() :: LcdDisplay.HD44780.Driver.command()
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display_driver()

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Specs

display_driver() :: LcdDisplay.HD44780.Driver.t()

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child_spec(init_arg)

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Returns a specification to start this module under a supervisor.

See Supervisor.

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execute(pid, command)

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Delegates the specified operation to the display driver, and updates the state as needed.

Examples 

DisplayController.execute(pid, {:print, "Hello"})
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start_link(display_driver)

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Specs

start_link(display_driver()) :: {:ok, pid()} | {:error, any()}

Starts a display driver process and registers the process with a composite key of driver module and display name.