The example can still be built and flashed without Arduino. Pressing PA0 should toggle LD4 if HAL_SPI_Transmit() returns HAL_OK. This only confirms that the HAL transmit path runs. To verify real SPI ...

A collection of Arduino (PlatformIO) sample projects for the STM32WB55 microcontroller. This repository demonstrates various features such as LED control, button input, BLE communication, sensors, ...