Hw output add

Description

hw_output_id = hw_output_add(name, initial_state) (from AM/AP 3.5)
hw_output_id = hw_output_add(hw_id, initial_state)

hw_output_add is used to add a hardware output to your instrument.

Named

Available from AM/AP 3.5.

Give your hardware objects a name (.e.g. 'Power button' or 'Strobe LED').
Air Manager will present the user with a view where the assignment of pins can be done.

Arguments

hw_output_id = hw_output_add(name, initial_state)

#	Argument	Type	Description
1	name	String	A functional name to define the output.
2	initial_state	Boolean	The initial state of the output. When true, the pin will be driven high, otherwise low.

Return value

Argument	Type	Description
hw_output_id	ID	This value can be used for further reference. Functions such as hw_output_set can use this hw_output_id. Its good practice to store this hw_output_id in your logic code.

Example

-- Create a new output
outp_id = hw_output_add("My output", true)

-- Nah, rather have the output low
hw_output_set(outp_id, false)

Hardware Id's

Hardware Id's are not preferred, try to use named hardware instead.

Define the used pin(s) right away. This is not preferred, since changing of pin assignment can only be done by changing the instrument/panel lua script.

Arguments

hw_output_id = hw_output_add(hw_id, initial_state)

#	Argument	Type	Description
1	hw_id	String	The is the reference to the output. You can choose to bind to an existing Hardware ID (Hardware_id_list).
2	initial_state	Boolean	The initial state of the output. When true, the pin will be driven high, otherwise low.

Return value

Argument	Type	Description
hw_output_id	ID	This value can be used for further reference. Functions such as hw_output_set can use this hw_output_id. Its good practice to store this hw_output_id in your logic code.

Example

-- Bind to Raspberry Pi 2, Header P1, Pin 38, and drive the output high
outp_id = hw_output_add("RPI_V2_P1_38", true)

-- Nah, rather have the output low
hw_output_set(outp_id, false)