Support for Arduino Uno R4

[james-yoo]

Are there any plans to support a new Arduino UNO R4 (Renesas RA4M1 Arm® Cortex®-M4)?

[pablogs9]

Hello, there is no plan for integrating Arduino UNO R4, but it is easy to integrate new platforms in this repo, and community contributions are very welcomed.

[patrickwasp]

hi @pablogs9 can you point me to any documentation for integrating new platforms? Thanks

[pablogs9]

Hello, there is no official documentation for making new ports, but you can see some PR that have integrated new platforms:

• https://github.com/micro-ROS/micro_ros_arduino/pull/35
• https://github.com/micro-ROS/micro_ros_arduino/pull/1284
• https://github.com/micro-ROS/micro_ros_arduino/pull/680

In general, you will need to:

• Determine which compiler (version specific) uses Arduino for the target platform
• If not available in the building docker, add it here and PR changes.
• Update the library_generation.sh script to use the compiler to build the micro-ROS static library and put it in the correct folder
• Update CI to test your changes

In general, this is not a trivial process, but handling it with care should be possible to do it.

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IMPORTANT

It is very important to check if one of the already precompiled libraries actually works for the platform.

For example, R4 uses a Cortex-M4 and we already have a precompiled Cortex-M4 library: https://github.com/micro-ROS/micro_ros_arduino/tree/iron/src/cortex-m4

Have you check if adding it as supported plaftorm it works out of the box?

[gbr1]

Hi! I have just checked this issue. I made a PR to get Arduino UNO R4 working over USB