EasyLoader (beta)

Current Product Don't Have Test Firmware

Note: pls, use PC chrome/edge browser, if can't connect, refresh the webpage.

1. Click connect button

2. After connected successfully, pick a firmware

3. Click the burn button

4. After burning successfully, Unplug the device and restart.


UnitV2 USB


Quick Start


The UnitV2 USB is the latest high efficiency AI recognition module from M5Stack, it adopts Sigmstar SSD202D (integrated dual-core Cortex-A7 1.2GHz processor) control core, 128MB-DDR3 memory and 512MB NAND Flash. It offers USB-A universal interface, which allows you to connect various UVC Cameras, Built-in Linux operating system, integrated with rich hardware and software resources and development tools brings you a simple and efficient AI development experience right out of the box!

Product Features

  • Sigmstar SSD202D
  • Dual-core Cortex-A7 1.2GHz processor
  • 128MB DDR3
  • 512MB NAND Flash
  • USB-A universal interface, can be connected to various UVC cameras
  • Wi-Fi 2.4GHz
  • Development method:
    • Equipped with 12 ways AI image functions: QR code, face detection, line tracking, movement, shape matching, image streaming, classification, color tracking, face recognition, target tracking, shape detection, custom object detection
    • Support online preview, UIFlow (used as serial port json format)
    • Linux system(OpenCV, SSH, JupyterNotebook)


  • 1 x M5Stack UnitV2 USB
  • 1 x 16g TF Card
  • 1 x USB-C cable (50cm)
  • 1 x bracket
  • 1 x back clip


  • AI recognition function development
  • Industrial visual recognition classification
  • Machine vision learning

UNIT-V2 series comparison

Lens equipment Normal focal length (FOV 68°) Normal focal length (FOV 85°) + wide-angle focal length (FOV: 150°) Without lens, USB-A universal interface, can be connected to various UVC cameras
CMOS GC2145 GC2053 /


Specifications Parameters
Sigmstar SSD202D Dual Cortex-A7 1.2GHz Processor
Flash 512MB NAND
Camera Not equipped with a lens, USB-A universal interface, can be connected to various UVC cameras
Input voltage 5V @ 500mA
Hardware Peripherals TypeC x1, UART x1, TFCard x1, Button x1, Microphone x1, Built-in active cooling fan x1
Indicator light Red, White
Wi-Fi 150Mbps 2.4GHz 802.11 b/g/n
Ethernet network card SR9900

Driver Installation

Download the corresponding SR9900 driver according to the operating system used.


Extract the driver compressed package to the desktop path -> Enter the device manager and select the currently unrecognized device (named with SR9900) -> Right-click and select Custom Update -> Select the path where the compressed package is decompressed -> Click OK and wait for the update carry out.


Extract the driver package -> double-click to open the SR9900_v1.x.pkg file -> follow the prompts and click Next to install. (The compressed package contains a detailed version of the driver installation tutorial pdf)

  • After the installation is complete, if the network card cannot be enabled normally, you can open the terminal and use the command below to re-enable the network card.
sudo ifconfig en10 down
sudo ifconfig en10 up

Out Of The Box AI Recognition Function

  • UnitV2 integrates not only the basic AI recognition developed by M5Stack, but also has built-in multiple recognition (such as face recognition, object tracking and other common functions), which can quickly help users build AI recognition applications.

  • All features! Plug and play! UnitV2 has a built-in wired network card. When you connect to a PC through the TypeC interface, it will automatically establish a network connection with UnitV2.Flexibly Connectable, it can also be connected and debugged via Wi-Fi.

  • UART serial port output, all identification content is automatically output in JSON format through the serial port for convenient use.

  • Built-in recognition function use tutorial

  • Identify the source code of the service framework

  • Firmware update tutorial

Development Efficiency Improvement


Use the latest Linux AI smart camera UnitV2 produced by M5Stack to build a non-performing product screening function that simulates industrial application scenarios.


UnitV2 Built-in functions out of the box

UnitV2 Applications