Loading source-backed pinouts…
Microcontroller · Development Board
STM32F4 Discovery
Classic low-cost Cortex-M4 board with ST-LINK/V2-A, accelerometer, mic, and audio DAC.
- GPIO
- I2C
- SPI
- UART
- ADC
- DAC
- PWM
- USB
- SWD
- JTAG
- Processor
- STM32F407VGT6 Cortex-M4F @ 168 MHz
- Logic
- 3.3 V GPIOTreat as not 5 V tolerant
- Power
- USB (ST-LINK or OTG) or external 5 V via P1/P2
- Format
- 66 × 97 mm board, two 2.54 mm 50-pin headers
Before you wire
4 cautions- BOOT0 is pulled low via solder bridge SB18; entering the system bootloader requires re-soldering SB18/SB19, and P2 pin 21 carries BOOT0 — a common accidental-conflict pin.
- ST-LINK/V2-A limits the target application supply to a 3 V minimum and cannot source more than ~100 mA over USB.
- CN2 (external SWD out) and the CN3 ST-LINK jumpers are mutually exclusive; leaving CN3 jumpered while wiring CN2 disturbs programming.
- Enabling STM32 readout protection on this board permanently prevents the target application from running — keep it disabled (UM1472).
Pin map
Pin map queued
This board has official references linked, but its in-app connector map still needs a source-backed import.
Source references
Why it matters
- 1 MB flash on the STM32F407VGT6.
- Onboard ST-LINK/V2-A doubles as an external SWD programmer for other STM32 targets.
- All 100 LQFP I/Os broken out to the P1/P2 headers for probing and prototyping.
- ST-MEMS accelerometer, digital microphone, and audio DAC with speaker driver on board.
- Free STM32CubeIDE and STM32CubeF4 HAL keep it viable for coursework.
Similar boards
Adafruit ESP32-S3 Feathersame development board class · same microcontroller platformAdafruit Feather M4 Expresssame microcontroller platform · 8 shared interfacesAdafruit Feather nRF52840 Expresssame development board class · same microcontroller platformAdafruit Feather RP2040same microcontroller platform · 7 shared interfaces