For full instructions on using the STM32 boards with Arduino, see the Getting Started page.

See Supported boards section of the Arduino_Core_STM32/README.md.

See API references for usage of accessing the hardware with the Arduino API-functions.

See Libraries

• Add a new variant (board)
• Using git repository

• Definitions
• Build options (build_opt.h)
• HAL module configuration
• Board support based on a core

• BLE
• LoRa

Check the FAQ in case it is a common problem and it may be discussed there.

If you have any issue to download/use a package, you could file an issue on BoardManagerFiles GitHub.

For STM32 Core or tools issue, file an issue on the related Github:

• Arduino_Core_STM32.
• Arduino_Tools.

For STM32dunio libraries, file an issue on the related Github.

Or submit a topic on the stm32duino forum:

• questions on the STM32 Core

• bugs/enhancements on the STM core: Bugs and enhancements

Arduino.cc official website

STM32 MCU