Type: String | Multiple: No

board_build.mcu is a microcontroller(MCU) type that is used by compiler to recognize MCU architecture. The correct type of board_build.mcu depends on platform library. For example, the list of board_build.mcu for “megaAVR Devices” is described here.

The full list of board_build.mcu for the popular embedded platforms you can find in Boards section of Development Platforms. See “Microcontroller” column.