5.2.3 LED Strip Control

The chest LED strip control interface provides enhanced visual interaction capabilities.

Key Features

  • Independent RGB component control

  • Multiple display modes supported

LED Strip Control Service

Service Name

Data Type

Description

/aimdk_5Fmsgs/srv/LedStripCommand

LedStripCommand

LED Strip Control

Attention

The LED strip service responds slowly; expect ~5 seconds for a full call. For multitasking, run this service in a separate thread or use asynchronous calls.

Caution

As standard ROS DO NOT handle cross-host service (request-response) well, please refer to SDK examples to use open interfaces in a robust way (with protection mechanisms e.g. exception safety and retransmission)

  • LedStripCommand ros2-srv @ hal/srv/LedStripCommand.srv

    # LED Strip Control
# Service: /aimdk_5Fmsgs/srv/LedStripCommand

# Request
CommonRequest request  # Request header

uint8 led_strip_mode  # LED mode (0: steady, 1: breathing, 2: blinking, 3: flowing)
uint8 r  # Red component (0–255)
uint8 g  # Green component (0–255)
uint8 b  # Blue component (0–255)

---

# Response
ResponseHeader header  # Response header
uint16 status_code  # Status code (0: success, others: failure)

    led_strip_mode description:

    Value

    Mode

    Description

    0

    Steady

    1

    Breathing

    4-second cycle, sinusoidal brightness transition

    2

    Blinking

    1-second cycle, toggles every 0.5s

    3

    Flowing

    2-second cycle, lights move left → right, then turn off simultaneously

Programming Examples

For detailed programming samples and explanations, refer to: