ST-Link V2 Debugger & Programmer USB Dongle for STM32 & STM8 Microcontrollers (SWD & SWIM Interface)

Flash firmware and debug code effortlessly with the ST-Link V2 Debugger & Programmer USB Dongle for STM32 & STM8. Designed for developers, students, and embedded systems engineers, this compact USB programmer supports both SWD (Single Wire Debug) for 32-bit STM32 microcontrollers and SWIM (Single Wire Interface Module) for 8-bit STM8 microcontrollers. Enclosed in a durable aluminum alloy shell, the programmer supplies both 3.3V and 5V auxiliary power to target development boards and features full compatibility with ST-LINK Utility, STM32CubeIDE, Keil uVision, IAR Embedded Workbench, and OpenOCD.

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Tags ST Link V2 Programmer STM32 Debugger USB Dongle STM8 SWIM Programmer ST-Link Mini Emulator STM32 Blue Pill Programmer SWD Debugger Module STM32CubeIDE Programmer ST Link V2 Metal Case

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Product Details :

The ST-Link V2 Debugger & Programmer USB Dongle is an essential hardware tool designed for in-circuit debugging and flash programming of STMicroelectronics STM32 (ARM Cortex-M) and STM8 (8-bit) microcontroller families. Housed in a sturdy anodized aluminum protective casing, this USB mini dongle provides direct USB 2.0 full-speed interface access to your host computer without requiring external power supplies.

The programmer incorporates two primary debugging interfaces: SWD (Single Wire Debug) for 32-bit STM32 chips (such as STM32F103 "Blue Pill", STM32F401, STM32F411, etc.) and SWIM (Single Wire Interface Module) for 8-bit STM8 microcontrollers (such as STM8S103, STM8S003). In addition to data and clock signal lines, the ST-Link V2 provides $3.3 ext{V DC}$ ( $500 ext{mA}$ max) and $5.0 ext{V DC}$ output pins, allowing you to power low-power target boards directly during firmware compilation and flashing.

Key Features and Benefits

Dual Architecture Support: Supports both 32-bit ARM Cortex-M (STM32 via SWD) and 8-bit (STM8 via SWIM) microcontroller families.
Compact & Rugged Aluminum Enclosure: Protective metal case protects sensitive board components from static electricity and physical damage.
Onboard Power Supply Outputs ( $3.3 ext{V}$ & $5 ext{V}$ ): Supplies power directly to target development boards up to $500 ext{mA}$ .
Standard $2.54 ext{mm}$ Pin Header: Clear laser-etched pinout diagram on the casing for easy jumper wire connections.
Self-Recovering Fuse Protection: Internal 500mA resettable fuse prevents damage to host PC USB ports in case of accidental short circuits.
Universal IDE Compatibility: Natively supported by STM32CubeIDE, ST-LINK Utility, STM32CubeProgrammer, Keil MDK-ARM, IAR EWARM, PlatformIO, and OpenOCD.

Technical Specifications

Feature Component	Specification Details
Programmer Interface Model	ST-Link V2 (Mini USB Dongle Form)
Host Interface	USB 2.0 Full Speed (Standard Type-A Plug)
Supported Protocols	SWD (Single Wire Debug) & SWIM (Single Wire Interface)
Target Power Outputs	$+3.3 ext{V DC}$ and $+5.0 ext{V DC}$ ( $le 500 ext{mA}$ )
Firmware Upgradability	Supported via ST-LINK Utility / STM32CubeProgrammer
Status LED Indicator	Dual-color status LED (Indicates power, connection, and data transfer)
Connector Type	10-Pin $2.54 ext{mm}$ Dual-Row Male Header
Operating Voltage Range	$1.65 ext{V to } 5.5 ext{V}$ target voltage sensing
Operating Temperature	$0^circ ext{C to } +50^circ ext{C}$

Wiring & Pinout Guide

1. Pinout Map (Standard 10-Pin Header):

The pinout layout is laser-etched directly on the aluminum casing for quick reference:

 [ 1: RST   ]  [ 2: SWCLK ]
 [ 3: SWIM  ]  [ 4: SWDIO ]
 [ 5: GND   ]  [ 6: GND   ]
 [ 7: 3.3V  ]  [ 8: 3.3V  ]
 [ 9: 5.0V  ]  [10: 5.0V  ]

2. Wiring to STM32 (SWD Mode - e.g., Blue Pill / Black Pill):

ST-Link V2 Pin	Target STM32 Board Pin	Function
$3.3V$	$3.3V$	Target Board Power Output
$GND$	$GND$	Common Ground
$SWCLK$	$SWCLK$ / $PA14$	Serial Wire Clock Signal
$SWDIO$	$SWDIO$ / $PA13$	Serial Wire Data Input/Output
$RST$ (Optional)	$NRST$ / $RESET$	Hardware System Reset

3. Wiring to STM8 (SWIM Mode):

ST-Link V2 Pin	Target STM8 Board Pin	Function
$3.3V$ or $5.0V$	$VCC$	Target Board Power Supply
$GND$	$GND$	Common Ground
$SWIM$	$SWIM$	Single Wire Interface Data
$RST$	$NRST$ / $RESET$	Target Hardware Reset

IMPORTANT OPERATING NOTES:

Avoid Dual Powering: Do not power your target STM32 board via USB (e.g., micro-USB port) and the ST-Link $3.3 ext{V}/5 ext{V}$ pins simultaneously to avoid backfeeding current.

Driver Installation: Install the official ST-LINK USB driver (STSW-LINK009) before plugging the dongle into Windows PCs for proper device recognition.

Applications

STM32 Microcontroller Programming: Uploading hex/bin firmware files to STM32F0, F1, F2, F3, F4, F7, and L-series chips.
In-Circuit Debugging: Real-time breakpoint stepping, variable monitoring, and memory inspection using ST-LINK Utility or STM32CubeIDE.
STM8 Microcontroller Development: Flashing and debugging low-cost 8-bit STM8S and STM8L microcontrollers.
3D Printer & Drone Flight Controller Flashing: Updating bootloaders or custom firmware (Marlin, Betaflight) on STM32-based controller boards.