Make a donation to the original Ariadne developer: Ariadne Bootloader implements a TFTP server on the Arduino board to allow uploading sketches to boards with a W5100 Ethernet controller attached ...

Note: Most "generic" STM32F103 boards only have a reset button, and not a user / test button. So the bootloader code always configures the Button input pin as PullDown. Hence, if a button is not ...