Description of product


The STLINK-V3MINI is stand-alone debugging and programming mini probe for STM32 microcontrollers.

The JTAG/SWD interfaces are used to communicate with any STM32 microcontroller located on an application board.

The STLINK-V3MINI also provides a Virtual COM port interface allowing the host PC to communicate with the target microcontroller through one UART.

The STLINK-V3MINI is a portable version, easy-to-use debugger/programmer including STDC14 interface with its flat cable.


  • Stand-alone probe
  • Approximately 15 x 30 mm high-density integration PCB, very small form factor
  • Self-powered through a Micro-B USB connector (does not provide power supply to the target application)
  • USB 2.0 high-speed compatible interface
  • Direct firmware update (DFU) support, to use with more future devices
  • JTAG / serial wire debugging (SWD) specific features:
    • 3 V to 3.6 V application voltage support and 5 V tolerant inputs
    • Delivered with 1.27 mm pitch STDC14 to STDC14 flat cable
    • Additional adapter board and 2.54 mm pitch 20-pin JTAG/SWD flat cable (extra accessories from Waveshare)
    • SWD and serial wire viewer (SWV) communication support
  • Virtual COM port (VCP) specific features:
    • 3 V to 3.6 V application voltage support on the UART interface and 5 V tolerant inputs
    • VCP frequency up to 15 MHz
  • Drag-and-drop Flash programming
  • Two color LEDs: communication, power
  • Includes STDC14 signals protection

Supported Software

  • STM32CubeProgrammer
  • Keil® MDK-ARM
  • SW4STM32
  • STVP
  • GCC-based IDEs

Supported Devices

  • All STM32 MCUs with JTAG / SWD interface