Description
hw_led_id = hw_led_add(hw_id, initial_brightness)
hw_led_add is used to add a LED output to your instrument.
Return value
Argument |
Type |
Description
|
hw_led_id |
ID |
This value can be used for further reference. Functions such as hw_led_set can use this hw_led_id. Its good practice to store this hw_output_id in your logic code.
|
Arguments
# |
Argument |
Type |
Description
|
1 |
hw_id |
String |
The is the reference to the LED output. You can choose to bind to an existing Hardware ID (Hardware_id_list).
|
2 |
initial_brightness |
Number |
The initial state of the LED. Ranges from 1.0 (full brightness) to 0.0 (off).
|
Example
-- Bind to Raspberry Pi 2, Header P1, Pin 38, and turn the LED to full brightness
led_id = hw_led_add("RPI_V2_P1_38", 1.0)
-- Nah, rather have the LED set to 50% brightness
hw_led_set(led_id, 0.5)