Issue with Arduino IDE 2.3.4 on macOS (M1 Pro)

[jpurnell]

Here's how to do it without installing Rosetta.

How to avoid installing Rosetta on an Apple Silicon Mac

To get the Arduino IDE working on Apple Silicon, you have to provide a replacement compiler and uploader built for Apple Silicon, and then create a local configuration file that tells the Arduino IDE to use those updated versions. I started by following the instructions here: Apple Silicon functional toolchain The gist of this is to replace avr-gcc, ctags, and avrdude with apple silicon native versions, then to point the IDE preferences file to use the correct versions. Step 1: Install avr-gc…