Compilation is performed with every modification to "Board Config UI" (GUI for arduino.json).

[zfields]

Since firmware cannot be flashed without first compiling it, it is redundant and unproductive to verify every time a value in the Board Config UI changes.

This is less obnoxious when you have a standard issue Arduino board, like the Uno that doesn't really have any settings to speak of, but if you have a more sophisticated board, like an ST chip for example, there are multiple fields in the Board Config UI. Each modification results in a full recompile.

The experience is PAINFUL.

Please only compile when it is requested using Verify, or before Upload is performed. This is inline with the Arduino IDE and provides a WAY BETTER experience.

[benmcmorran]

Hi @zfields! An upcoming release (hopefully later today) will include #1480 which adds the arduino.analyzeOnOpen and arduino.analyzeOnSettingChange options. Setting arduino.analyzeOnSettingChange to false should fix your issue.

[github-actions]

This issue has been fixed in the latest release of this extension, which is available in the VS Code extension marketplace.