Fix for Arduino Uno R4 build error

[jonghee-son]

Fixed build error when using ARM Cortex-M based Arduino (Such as Arduino UNO R4 Minima and UNO R4 WiFi).

[gemini-code-assist]

Hello @jonghee-son, 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!

Summary of Changes

This pull request addresses a build error encountered when using ARM Cortex-M based Arduinos, specifically the Arduino UNO R4 Minima and UNO R4 WiFi. The fix involves updating the ControlTableItem references for LED control in Dynamixel2Arduino.cpp and actuator.cpp to use the DXL_LED_ prefix. This ensures compatibility with the new hardware and resolves the build issues.

Highlights

• Build Error Fix: Addresses a build error specific to ARM Cortex-M based Arduino boards like Arduino UNO R4.
• LED Control Update: Updates LED control references in Dynamixel2Arduino.cpp and actuator.cpp to use DXL_LED_ prefix.
• Compatibility: Ensures compatibility with Arduino UNO R4 Minima and UNO R4 WiFi boards.

Changelog

• src/Dynamixel2Arduino.cpp
  • Updated writeControlTableItem calls for LED control to use DXL_LED_GREEN, DXL_LED_BLUE, and DXL_LED_RED instead of LED_GREEN, LED_BLUE, and LED_RED within the setLedState function (lines 613, 614, and 616).
• src/actuator.cpp
  • Modified pro_r_control_table to use DXL_LED_RED, DXL_LED_GREEN, and DXL_LED_BLUE instead of LED_RED, LED_GREEN, and LED_BLUE (lines 322, 323, and 324).
  • Modified pro_ra_pro_plus_control_table to use DXL_LED_RED, DXL_LED_GREEN, and DXL_LED_BLUE instead of LED_RED, LED_GREEN, and LED_BLUE (lines 380, 381, and 382).
• src/actuator.h
  • Replaced LED_RED, LED_GREEN, and LED_BLUE with DXL_LED_RED, DXL_LED_GREEN, and DXL_LED_BLUE in the ControlTableItem namespace (lines 335, 336, and 337).

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Did you know?

The ARM architecture, initially known as the Acorn RISC Machine, was developed at Acorn Computers in the 1980s. It's now the most widely used instruction set architecture in smartphones and embedded systems.

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[gemini-code-assist]

Code Review

The pull request addresses a build error encountered when using ARM Cortex-M based Arduinos, such as the Arduino UNO R4 Minima and UNO R4 WiFi. The fix involves updating the control table item names for LED control in the Dynamixel2Arduino library. Overall, the changes seem reasonable and necessary to resolve the identified issue.

Summary of Findings

• Inconsistent Naming Convention: The naming convention for LED control items is inconsistent. While most items use DXL_LED_*, the LED item is still used in the setLedState function for non-PRO series actuators. This inconsistency should be addressed for better code maintainability.

Merge Readiness

The pull request appears to address a valid build error and the changes seem localized and well-defined. However, the naming inconsistency identified should be addressed before merging to ensure code clarity and maintainability. I am unable to approve this pull request, and recommend that others review and approve this code before merging.