Waveshare STLINK-V3MINIE In-Circuit Debugger And Programmer Board For STM32 The STLINK-V3MINIE is a stand-alone debugging and programming tiny probe for STM32 microcontrollers, portable and easy-to-use. Onboard JTAGSWD interfaces for communicating with STM32 microcontroller, also provides a virtual COM port for the host PC to communicate with the target microcontroller through one UART. Features: 1. Tiny 15 mm x 42 mm stand-alone debugging and programming probe for STM32 microcontrollers 2. Self-powered through a USB Type-C connector 3. USB 2.0 high-speed interface 4. Probe firmware is updatable through USB 5. Support drag-and-drop Flash programming of binary files 6. Two color LEDs: communication, power 7. JTAG communication support up to 21 MHz 8. SWD (Serial Wire Debug) and SWV (Serial Wire Viewer) communication support up to 24 MHz 9. Virtual COM port (VCP) up to 15 Mbps 10. 1.65 to 3.60 V application voltage support