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Discover-MO:) is a product line,which help customers to discover more functions on the STMicroelectronics’ official boards, such as STM32F4DISCOVERY. Now Discover-MO:) contains three modules, DM-STF4BB, DM-LCD35RT and DM-CAM130. Embest will design more excellent expansion modules to strengthen the product line of Discover-MO:).

The DM-STF4BB Base Board from Embest is an expansion board designed especially for STMicroelectronics’ STM32F4DISCOVERY high-performance discovery board which is based on the STM32F407VGT6 ARM Cortex-M4 microcontroller and includes an ST-LINK/V2 embedded debug tool, two ST MEMS, digital accelerometer and digital microphone, one audio DAC with integrated class D speaker driver, LEDs and push buttons and an USB OTG micro-AB connector on board.

The DM-STF4BB Base Board enables the STM32F4DISCOVERY board users to further discover more features of the STM32F4. It has incorporated additional functionalities to the STF32F4DISCOVERY providing Serial ports, USB, Ethernet, CAN, SPI, I2C, GPIO, Camera, TF Card, LCD and Touch Screen interfaces on board. The combination of the DM-STF4BB and the STM32F4DISCOVERY forms an ideal evaluation board Devkit407 for evaluating the STM32F4xx series ARM Cortex-M4 microcontrollers and allows easy prototyping of third party solutions with STM32F4DISCOVERY board or STM32F4xx series microcontrollers.

Embest has ported uC/OS-II to the DevKit407 board and the software also features the GUI support on uC/OS-II and LwIP_v1.3.2 protocal support. Meanwhile, Embest has offered rich software examples for DevKit407 besides those provided by STM32F4DISCOVERY kit. Along with the goods deliveries, Embest provides a CD containing the uC/OS-II BSP and plenty of software examples, board schematic and user manual to help customer better understanding this board and develop their own applications.

Moreover, Embest offers one 3.5 inch LCD Module DM-LCD35RT (including touch screen) and one 1.3 megapixel Digital Camera Modules for options to implement the video input and output performance on DevKit407.

DM-STF4BB Base Board

  • Expansion Board for STM32F4DISCOVERY STM32F4 High-performance Discovery Board

  • Extended Peripherals including UART, Ethernet, CAN, Camera, LCD, TF, SPI, I2C…

  • Supports Optional 3.5 inch LCD Module and 1.3 Megapixel Digital Camera Module

  • Supports uC/OS-II_v2.86 & UCGUI_v3.90a

  • Supports FatFs_vR0.08a File System (Used for TF card)

  • Supports LwIP_v1.3.2 Protocol Stack

An Expansion Board for STM32F4DISCOVERY:

  • STM32F407VGT6 microcontroller featuring 32-bit ARM Cortex-M4F core, 1 MB Flash, 192KB RAM in an LQFP100 package

  • On-board ST-LINK/V2 with selection mode switch to use the kit as a standalone STLINK/V2 (with SWD connector for programming and debugging)

  • Board power supply: through USB bus or from an external 5V supply voltage

  • External application power supply: 3V and 5V

  • LIS302DL, ST MEMS motion sensor, 3-axis digital output accelerometer

  • MP45DT02, ST MEMS audio sensor, omni-directional digital microphone

  • CS43L22, audio DAC with integrated class D speaker driver

  • Eight LEDs:

     - LD1 (red/green) for USB communication

     - LD2 (red) for 3.3 V power on

     - Four user LEDs, LD3 (orange), LD4 (green), LD5 (red) and LD6 (blue)

     - 2 USB OTG LEDs LD7 (green) VBus and LD8 (red) over-current

  • Two push buttons (user and reset)

  • USB OTG FS with micro-AB connector

  • Extension header for all LQFP100 I/Os for quick connection to prototyping board and easy probing

  If you want to try:

DM-STF4BB Base Board

Software Features:


  • Supports for uC/OS-II_v2.86 operating system

  • Supports UCGUI_v3.90a

  • Supports FatFs_vR0.08a file system

  • Supports LWIP _v1.3.2 protocol stack

 Development Environment Support:


    All drivers support IAR EWARM, the EWARM version should be V6.40 or above. uC/OS-II and uC-GUI Demos do not support IAR EWARM at present.

  • Keil MDK-ARM

    All drivers and applications support Keil MDK-ARM, the MDK-ARM version should be V4.22a or above.

 Debug Tools Support:

  • ULINK2

    It would be best to use with Keil MDK-ARM.

  • JLINK-V8

    It would be best to use with IAR EWARM.

  • ST-LINK/V2

    It can be used with either Keil MDK-ARM or IAR EWARM.

 Drivers and Software examples:

  • Embest has offered rich software examples for DevKit407 besides those provided by STM32F4DISCOVERY kit such as examples for USB, Ethernet and so on. Meanwhile, Embest has provided some system-level application demos which can help customers get into the second development rapidly to reduce the development time. Please check from below table to know more about the drivers and software examples provided by Embest. Please get more information from the DM-STF4BB datasheet.

Onboard Interfaces and Connectors:

DM-STF4BB Base Board


Relative Products:

DM-STF4BB Base Board

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