The miniature (15mm x 33mm) Sigfox development kit (DVK), DVK-SFEU-1-GEVK, allows designers to quickly develop Sigfox connected applications in the RCZ1 region using the AX-SFEU-API SoC solution. The DVK comes with a free two-year Sigfox subscription and is pre-programmed with the Sigfox stack and an example application that can be used as-is or extended. Approximately 40kB of FLASH is available for application code. Included in the kit is the AXDBG-2-GEVK debugger used for debugging software and programming the FLASH. To program the DVK, the designer needs to download the development tools and the API software library.