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48 lines
1.7 KiB
Markdown
48 lines
1.7 KiB
Markdown
# LedControl (UORB message)
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LED control: control a single or multiple LED's.
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These are the externally visible LED's, not the board LED's
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[source file](https://github.com/PX4/PX4-Autopilot/blob/main/msg/LedControl.msg)
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```c
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# LED control: control a single or multiple LED's.
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# These are the externally visible LED's, not the board LED's
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uint64 timestamp # time since system start (microseconds)
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# colors
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uint8 COLOR_OFF = 0 # this is only used in the drivers
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uint8 COLOR_RED = 1
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uint8 COLOR_GREEN = 2
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uint8 COLOR_BLUE = 3
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uint8 COLOR_YELLOW = 4
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uint8 COLOR_PURPLE = 5
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uint8 COLOR_AMBER = 6
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uint8 COLOR_CYAN = 7
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uint8 COLOR_WHITE = 8
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# LED modes definitions
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uint8 MODE_OFF = 0 # turn LED off
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uint8 MODE_ON = 1 # turn LED on
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uint8 MODE_DISABLED = 2 # disable this priority (switch to lower priority setting)
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uint8 MODE_BLINK_SLOW = 3
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uint8 MODE_BLINK_NORMAL = 4
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uint8 MODE_BLINK_FAST = 5
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uint8 MODE_BREATHE = 6 # continuously increase & decrease brightness (solid color if driver does not support it)
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uint8 MODE_FLASH = 7 # two fast blinks (on/off) with timing as in MODE_BLINK_FAST and then off for a while
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uint8 MAX_PRIORITY = 2 # maximum priority (minimum is 0)
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uint8 led_mask # bitmask which LED(s) to control, set to 0xff for all
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uint8 color # see COLOR_*
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uint8 mode # see MODE_*
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uint8 num_blinks # how many times to blink (number of on-off cycles if mode is one of MODE_BLINK_*) . Set to 0 for infinite
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# in MODE_FLASH it is the number of cycles. Max number of blinks: 122 and max number of flash cycles: 20
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uint8 priority # priority: higher priority events will override current lower priority events (see MAX_PRIORITY)
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uint8 ORB_QUEUE_LENGTH = 8 # needs to match BOARD_MAX_LEDS
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```
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