ATmega328P (Old Bootloader)

How do I upload to a Nano with the old bootloader in the new IDE? Works in the old version.

Hello. The system for selecting custom board options like the Nano's "old bootloader" option is the same as in the classic IDE.

First select the Arduino Nano board. You can do that from the new "Select Other Board & Port" menu, which has a search functionality, or you can select it in the traditional way via the Tools > Board > Arduino AVR Boards > Arduino Nano menu selection.

After doing that, you will find that a new Tools > Processor menu is available, and you can select "ATmega328P (Old Bootloader)" from that menu.

After that, the upload should work as always. Please let me know if you have any troubles.

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