Enable the use of some meta-comment in the code so that the appropriate board is automatically selected for that code.

Additional context

Additional requests

• Allow configuring board for IDE to select by default when sketch is opened #2438 (comment)
• Allow configuring board for IDE to select by default when sketch is opened #2438 (comment)
• Allow configuring board for IDE to select by default when sketch is opened #2438 (comment)
• Allow configuring board for IDE to select by default when sketch is opened #2438 (comment)
• Allow configuring board for IDE to select by default when sketch is opened #2438 (comment)
• Allow configuring board for IDE to select by default when sketch is opened #2438 (comment)
• Automatic board selection #81
• Ability to associate board with sketch #1892
• Ability to associate board with sketch #1892 (comment)
• Assigning a board to a sketch Arduino#3228
• Tie together the port, board and sketch. Arduino#3459
• Persistent Board Setting Arduino#4950
• RFE: IDE to save board type inside the project Arduino#5121
• IDE does not place board info in INO file Arduino#5232
• Specify target board / settings in .ino code / comments. Arduino#5308
• Feature Request: sketch properties Arduino#6294
• Allow multiple Serial Monitor windows. Merge input from multiple ports into a single Serial Montor window. Arduino#6490
• Arduino IDE should recognize and apply settings found in preferences.txt in sketch folders Arduino#7324
• [Arduino IDE] Please add project settings connected to specific .ino Arduino#7327
• Custom hardware presets Arduino#7337
• [Suggestion] Add a header defining which board and additional compile settings, the sketch should compile with Arduino#7339
• Store board information beside sketch Arduino#7746
• feature request: hardcode-config board type by configuration in Sketch (e.g. #pragma config...) Arduino#10175
• We need a "project file" Arduino#10462
• Suggestion to save the settings in the project Arduino#11304
• Automatic board selection #81
• [IDE V2] Introduce a separate metadata manifest file for each project Arduino#11753
• https://forum.arduino.cc/t/board-settings-in-ino-file/343215/1
• https://forum.arduino.cc/t/board-settings-in-ino-file/343215/3
• https://forum.arduino.cc/t/board-settings-in-ino-file/343215/7
• https://forum.arduino.cc/t/board-settings-in-ino-file/343215/11
• https://forum.arduino.cc/t/board-settings-in-ino-file/343215/16
• https://forum.arduino.cc/t/board-settings-in-ino-file/343215/19
• https://forum.arduino.cc/t/board-settings-in-ino-file/343215/20
• https://forum.arduino.cc/t/board-settings-in-ino-file/343215/21
• https://forum.arduino.cc/t/board-settings-in-ino-file/343215/22
• https://forum.arduino.cc/t/board-settings-in-ino-file/343215/24
• https://forum.arduino.cc/t/board-settings-in-ino-file/343215/28
• https://forum.arduino.cc/t/board-settings-in-ino-file/343215/30
• https://forum.arduino.cc/t/board-settings-in-ino-file/343215/31
• https://forum.arduino.cc/t/board-settings-in-ino-file/343215/33
• https://forum.arduino.cc/t/board-settings-in-ino-file/343215/35
• https://forum.arduino.cc/t/board-settings-in-ino-file/343215/43
• https://forum.arduino.cc/t/setting-partition-for-a-project/699061
• https://forum.arduino.cc/t/store-board-info-in-ino-file-and-automatically-load/466878
• https://forum.arduino.cc/t/running-preload-script/506108
• https://forum.arduino.cc/t/save-board-selection-with-sketch/523805
• https://forum.arduino.cc/t/ide-parameters/557892
• https://forum.arduino.cc/t/associating-the-project-with-the-processor-important/670725
• https://forum.arduino.cc/t/feature-request-board-selection/941360
• https://forum.arduino.cc/t/defining-board-type-in-sketch/1203965/1
• https://forum.arduino.cc/t/defining-board-type-in-sketch/1203965/17
• https://forum.arduino.cc/t/saving-micro-controller-config-to-sketch/1300406
• https://forum.arduino.cc/t/can-i-just-swap-preferences-txt-to-switch-board-projects/1343878
• https://forum.arduino.cc/t/save-board-config-with-project/1408907
• https://forum.arduino.cc/t/save-able-custom-board-settings/1409421

Related

• Allow storing the protocol+port info per sketch profile arduino-cli#2554
• Use configuration from sketch project file #2573
• https://forum.arduino.cc/t/new-feature-multiple-board-configurations-per-sketch-looking-for-feedback/1409769