# OtterPill STM32F072 devboard featuring USB 2.0 full-speed, DFU Bootloader, USB-PD Phy, Arduino nano alike pinout and size. More documentation and firmware examples will be aviable soon. ## Building and Flashing ### Via Arduino [You can build and flash the firmware via Arduino as described here.](https://github.com/stm32duino/Arduino_Core_STM32) ## Via Makefile and DFU Or you can generate a basic firmware with HAL init and Makefile with CubeMX. The binary can then be build with make flashed with dfu-utils. $ make $ dfu-util -a 0 -s 0x08000000:leave -D build/firmware.bin ## Images ![](images/1.jpg) ![](images/2.jpg) ![](images/3.jpg) ![](images/4.jpg)