Deploy

Via dfu-util

This board can be programmed via DFU bootloader, using e.g. dfu-util. To enter the DFU bootloader, double tap the recessed reset button, or you can use machine.bootloader() from the MicroPython REPL.

The Arduino Opta indicates its DFU state by blinking the green LED above the RESET button.

NOTE: The board might remain in DFU mode after the upload, a simple reset will bring the board back to Run-Time.

dfu-util -w -a 0 -d 2341:0364 -D build-ARDUINO_OPTA/firmware.dfu

Or from MicroPython source repository, making sure the current directory is ports/stm32:

make BOARD=ARDUINO_OPTA deploy