Earlier Lab Notes highlighted NVIDIA's 2022 commitment to direct apt installation of Jetson AGX Orin JetPack software in lieu of the prior standard installs from an NV SDK workstation.
So in that 'spirit', despite years of strong dev recommendations to install the latest binaries directly from the Arduino.cc web site, I initially chose to test apt install arduino for getting the IDE up on both Xeon workstation and AGX Orin Dev Kit.
The APT repository served up Arduino IDE "2.1.0.5" for both Ubuntu-based systems neatly, and both installed apps could immediately detect a USB-connected Arduino Mega 2560, compile, load, and run new code on it through the standard IDE drop down menus.
It sure looked and worked like the good old Arduino Java/C++ 1.n IDE I had used for nearly 20 years on Macs for a variety of projects, even though it was a newer 2.0 series program (supposedly) completely rewritten in TypeScript/Javascript...
Everything looked fine for programming an advanced version of an analog computer hybrid interface, until I tried to add new MCU hardware libraries via URL as required for earlier projects. Only a basic list of standard Arduinos, including the Mega 2560, was available through the Boards Menu item.
There was no standard Board Manager selection on the 2.1.0.5 IDE Tools Menu, and there was no Preference window element for entering URLs.
And no way to load the other non-Arduino libraries that I had also used for processing with other AVR and ARM Cortex M boards...
So lessons learned, the next step was sudo apt remove arduino on two systems, then follow Arduino.cc's and Ubuntu's best instructions for installing IDE packages for amd64 and aarch64 Linux systems.
Consistent with Lab goals, I chose to start with installing the latest legacy ARM64 binary .tar of Arduino 1.8.19 for the Orin, with 1.8.19 and the 2.0.3 .tars for x86-64/amd64 for the workstation. Among other things, this gave me code and performance comparisons of the IDEs on three platforms.
Note that the latest stabile version of the IDE was 2.0.3 at Arduino.cc, compared to 2.1.0.5 claimed by the original apt install...
Anyway, the version 1.8.19 installations gave the proper Board Manager and Preferences access to all the non-Arduino AVR and ARM boards I had been using over the last decade.
The next images show the standard Preferences URL entry dialog and the Board Manager on the Orin confirming connection to an Adafruit Grand Central M4, on an IDE first configured for the Arduino Mega 2560 board. Functionality was identical on the Xeon workstation.
The 'drop-in' Mega-footprint Grand Central M4 will run Arduino Mega 2560 code (e.g.) as-is, while supporting the option of running equivalent CircuitPython code and using it with Jupyter Notebooks.
