WYHP ST-Link V2 Mini STM8 STM32 Emulator Downloader Programming Unit (Random Color) This programmer supports downloading and debugging of the full range of STM32 SWD and STM8 SWIM. The wiring is very simple! It's convenient and practical because the interface definition is marked directly on the case. It supports both 5V and 3.3V power outputs, and all I/O output ports are protected. You can easily observe the working status with red and blue LED indicators. It can protect your computer motherboard since the internal board of this programmer is with 500MA self-recovery fuse.