Robot dobot mg400

[franz-sweepMe]

add error checks

[gemini-code-assist]

Summary of Changes

Hello @franz-sweepMe, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request significantly improves the reliability and user experience of the Dobot MG400 driver by integrating proactive error detection for robot movements and clarifying the initial connection setup. The changes aim to prevent common issues like timeouts due to out-of-range commands and ensure users can more easily configure the robot for remote control.

Highlights

• Error Handling: Implemented robust error checking within the move_linear function to detect and report out-of-range movements, preventing timeouts and providing clearer feedback.
• New has_error Method: Introduced a new has_error method to programmatically check the robot's error status based on the length of the GetErrorID() response.
• Documentation Update: Enhanced the description.md documentation with a dedicated 'Connection' section, providing clearer and more comprehensive instructions for setting up the Dobot MG400.

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Changelog

• src/Robot-Dobot_MG400/doc/description.md
  • Added a new 'Connection' section to organize setup instructions.
  • Moved existing connection steps into the new section.
  • Included a new instruction to ensure the robot is 'Enabled' in DobotStudioPro.
• src/Robot-Dobot_MG400/main.py
  • Reordered import statements for __future__ and typing.
  • Reformated the axes dictionary for improved readability.
  • Added a has_error method to check the robot's error status.
  • Integrated error checking into the move_linear function, raising an exception if an error is detected after a move.
  • Added a detailed docstring to move_linear explaining the new error handling.

Activity

• No specific activity (comments, reviews, or progress updates) has been recorded for this pull request yet.

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[gemini-code-assist]

Code Review

This pull request significantly improves the robustness of the Dobot MG400 driver by adding error checks after robot movements. The documentation has also been updated to provide clearer instructions for connecting to the robot, including the crucial step of enabling the robot in DobotStudioPro. Minor formatting adjustments were made to the axes dictionary for better readability.

[gemini-code-assist]

The current error detection relies on the length of the error_code string (len(error_code) > 51). While the docstring acknowledges this is experimental due to the unstructured nature of the error message, relying on a magic number for string length can be fragile. If the format of the error message changes even slightly in a future firmware update, this check might break or incorrectly identify non-errors.

Consider if there's a more robust way to parse the error_code string, perhaps by looking for specific keywords or patterns that reliably indicate an error, even if the overall structure is inconsistent. If direct parsing isn't feasible, adding a comment explaining why 51 was chosen (e.g., "observed minimum length for an error message") would be helpful for future maintenance.

[gemini-code-assist]

The addition of the 'Connection:' section and the explicit steps to set the robot to 'Enabled' are excellent improvements. This makes the setup process much clearer and helps prevent common issues users might face when trying to control the robot remotely.