DongshanPI-PicoW, A Tiny Arm Linux Board- A Review

DongshanPI-PicoW, A Tiny Arm Linux Board- A Review

The DongshanPI-PicoW is a tiny Arm Linux board that features four 12-pin headers in addition to the SSW101B USB WiFi chip. According to its name, the DongshanPI-PicoW board or module is intended to be an Arm Linux alternative to the Raspberry Pi Pico W. It features a SigmaStar SSD210 dual-core Cortex-A7 processor with 64MB RAM, an SSW101B USB WiFi 4 chip, and a considerable quantity of input and output connections.

The DongshanPI-PicoW development board is made up of Sigma Technology and has SSD210 and SSW101B WiFi. The design utilizes a 2.0mm pin header in conjunction with a stamp hole. To start up and make use of the development board system, it merely requires input from a 5V power supply.

The module also includes a 128 MB SPI flash to run Linux and provides a display interface up to 1280 x 800 60fps, USB 2.0, audio interfaces, and more interfaces in a small 31 mm x 31 mm form factor with 48 through and castellated holes that are easy to incorporate into compact devices.


  • Processor – SigmaStar SSD210 ARM Cortex-A7 Dual Core 1 GHz with Neon and FPU
  • Storage – Winbond SPI NAND FLASH 128MB (W25Q128)
  • Connectivity –IEEE 802.11b/g/n 2.4GHz 1T1R WiFi 4 module + u.FL antenna connector
  • Onseemi USB 2.0 (480MBbps) Switch (FSUSB30)
  • Four 12-pin 2.0mm pitch headers with castellated holes
  • Max. two MIPI interfaces with 2 or 1 data lane and 2 clock lanes
  • TTL output up to 1280×800 60fps
  • MIC and DMIC inputs, lineout I2S TDM 8-channel, RX 2/4/8 channels, TX 2 channels
  • SDIO 2.0 x1
  • SPI x2 I2C x2 UART x4 PWM x4
  • USB 2.0 x1
  • 64MB DDR2
  • SSW101B
  • 32Bit RISC 150MHz CPU
  • Support HT20/40MHz Bandwidth
  • Networking – Ethernet x1
  • Security Engines
  • Others – Reset button
  • Power – 5V via I/O pins
  • Dimensions – 31 x 31 mm (estimated)


As shown in the picture below, the user must join the pins of the core board to the pins of the adapter board. Users can connect this bottom board to the hole board.

The Wiki contains some important information, as well as schematics, a Linux image, and flashing tools. Any concerns regarding this circuit board’s development can be discussed on their forum.

Purchase Information

On Aliexpress, the DongshanPI-PicoW can be purchased for $6.71 USD.

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About Rakesh Kumar, Ph.D.

Rakesh Kumar holds a Ph.D. in Electrical Engineering with a specialization in Power Electronics. He is a Senior Member of IEEE, Class of 2021 and a member of the IEEE Power Electronics Society. At Electronics-Lab, he likes to write short NEWS articles on embedded systems. He also writes high-quality long-content technical articles on Power Electronics for several B2B and B2C platforms such as EEPower, JAK Electronics, and Kynix Semiconductors. Feel free to reach out to him anytime!

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