[Task] Display: Define ROS 2 Interfaces for User Commands

[JayH7C3]

Feature Description

Define and implement the ROS 2 interfaces used by the display to communicate user commands to the robot.

The display provides user interaction through buttons such as Start, Confirm, and Cancel. For each interaction, the appropriate ROS 2 communication mechanism (topic, service, or action) must be selected and connected to the corresponding subsystem.

The goal is to establish a well-defined interface between the user interface and the robot's software architecture while providing immediate visual feedback to the user.

Definition of Completion

Main functions

• Defines all user commands available through the display
• Determines the appropriate ROS 2 communication mechanism for each command
• Implements the required publishers, service clients, or action clients
• Connects all UI buttons to their corresponding ROS 2 interfaces
• Provides visual feedback after a command has been sent
• Prevents invalid or duplicate user commands
• Handles unavailable communication interfaces gracefully

Display ROS 2 interfaces

• Publish user commands to the corresponding ROS 2 interfaces
• Receive feedback where required
• Handle communication failures without blocking the UI

Testability

• All buttons trigger the intended ROS 2 communication
• Commands are received by the intended subsystem
• Invalid commands are rejected appropriately
• Communication failures are handled without crashing the UI
• The user receives visual feedback after each interaction

Code Dependencies

Display / UI package
Global Decision Making Node #10

Specification Dependencies

Display Information #205