Milk-V Duo 256M is an SG2002-Powered Multi-Architecture SBC Priced at $7.99

Milk-V Duo 256M is an SG2002-Powered Multi-Architecture SBC Priced at $7.99

The Milk-V Duo 256M is a compact board powered by the SOPHGO SG2002 SoC, integrating multiple architectures including Arm, RISC-V, and 8051. It has 256MB of built-in RAM and a 1 TOPS neural processing unit (NPU) for advanced computations. For storage, it features a microSD card slot. The board includes a connector for camera modules, a USB-C port for both power supply and programming tasks, and two sets of headers to extend its GPIO capabilities.

Previously we have covered  Sipeed LicheeRV Nano which also features the SOPHGO SG2002 SoC with optional Ethernet or Wi-Fi 6. We’ll look at the Duo 256M designed by Milk-V Technology in more detail.

Hardware documentation, such as schematics, PCB designs, and datasheets, can be found on GitHub. The website also offers guides on using buildroot (Linux 5.10 + FreeRTOS), the TDL SDK for utilizing the NPU in computer vision tasks like face detection, tracking, license plate recognition, and gesture detection, alongside examples for GPIO and more.

Milk-V Duo 256M specifications:

  • SoC – SOPHGO SG2002
    • Main core – 1GHz 64-bit RISC-V C906 or Arm Cortex-A53 core (selectable)
    • Minor core – 700MHz 64-bit RISC-V C906 core
    • Low-power core – 25 to 300MHz 8051 MCU core
    • NPU – 1 TOPS INT8, supports BF16
    • Integrated 256MB DDR3 (SiP)
  • Storage
    • MicroSD card slot
    • 32Gbit NAND flash (CSNP32GCR01)
  • Camera Interface – 4-lane MIPI CSI input connector
  • Audio – Built-in microphone
  • Networking – Support for 100Mbps Ethernet via adapter connected to 5x I/O pins
  • USB – 1x USB Type-C port for power and programming
  • Expansion – 2x 20-pin 2.54 pitch headers with access to GPIO, PWM, I2C, SPI, UART, JTAG, ADC, Audio, Arm/RISC-V switch signal
  • Misc – Power LED
  • Power Supply – 5V via USB-C port
  • Dimensions – TBD

The Duo 256M board can be purchased for $7.99 plus shipping on Arace Tech, and it’s also available on AliExpress for $10.53.

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About Debashis Das

Tech Content Creator | Hardware Design Engineer | IoT Enthusiast | Digital Storyteller | Video Creator | From crafting digital dialogues at Semicon Media to orchestrating online engagement at, my journey is about making tech talk interesting and accessible. In the quiet corners of the day, I advocate for easier tech education, one tutorial at a time. Let's connect and keep the digital dialogue going!

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