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Sipeed MAIX-II M2 V831 Core Board

Regular price $11.90 USD
Regular price Sale price $11.90 USD
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Sipeed MAIX-II M2 Core Board and Dock, AI+IOT Linux 1080P Allwinner V831 Development Board 


Maix-II-Dock is positioned as a cost-effective AIOT development board. While supporting conventional Linux development, it also has a unique AI hardware acceleration feature. With the complete software ecosystem provided by Sipeed, you can quickly realize your edge AI application.


  • Hardware, based on the Allwinner V831 chip, the development board is formed in the form of [core board] + [ext-board]. You can use the development board directly, or you can use only the core board to design your own ext-board according to your needs, which is convenient and fast to complete the development.


  • Software, in addition to directly using the datasheet provided by Allwinner for development (some satasheet may need to be obtained from Allwinner), Sipeed provides a very convenient Python SDK (MaixPy3) and C SDK (libmaix). It also provides an online model training service (MaixHub, which is more convenient for beginners to quickly train their usable AI models.


1.1. V831 chip brief


Allwinner V831, single-core Cortex-A7 800MHz, 64MiB on-chip DDR2 memory, cost-effective SOC that can run Linux, and supports hardware AI acceleration (0.2Tops computing power), can be used as a normal Linux SOC, and can also be used for edge AI application. See the manual below for more detailed parameters.


1.2. M2 core board details


Compared with Maix-I generation



Maix-I (K210)

Maix-II (V831)

Main frequency



Video encoder


H.264, up to 1080p@30fps
H265, up to 1080p@30fps
JPEG, up to 1080p@30fps


support Conv+BN+ACT+POOL

support Conv,Inner_Product,Pool,Eltwise,ACT,BN,Split,Concat





16MB SPI Nor Flash

Choosable 16M flash(Blank default)


DVP, support 30W pixels max

2lane MIPI, Up to 1080P@60fps


8bit MCU LCD

8bit MCU LCD, can use other screen by convert board



SMHC x2 (SDC0, SDC1)



SPI x2 (SPI0, SPI1)


I2C x3

I2C x4 (TWI0, TWI1, TWI2, TWI3)


8bit I2S

I2S x1 (I2S0)



10/100 Mbit/s Ethernet port with RMII interface



1-ch 6bit LRADC for key




Development environment



2.1. Dock board Specs



Maix II Part




M.2 B-KEY female slot*1

Used for connect V831 core board

Have connectted with core board when sold


Core board M2 copper column nuts*1

Fix core board with bottom board

Have been fixed when sold


Power LED*1

Show power state



State LED*1

User programmable led



CPU Reset button*1

Reset V831 chip



User button*2

Change IO voltage value,custome usage



Wi-Fi module*1

RTL8189FTV,adds Wi-Fi function for this board

SDIO Interface


BTB camera interface*1

Connect BTB camera module

Have connectted with bottom board when sold


Camera M2 copper column nuts*2

Fix BTB camera with bottom board

Have been fixed when sold


FHD camera*1

Default SP2305 Sensor BTB style, 1080P

Default 6mm focal length M12 lens,can use other Suitable camera


USB to UART chip*1

Provide serial port communication



Type-C interface(USB OTG) *1

Used for V831 otg function

Can be used for power supply


Type-C interface(UART) *1

Used for V831 uart debugging

Can be used for power supply


Three-axis accelerometer*1

I2C interface,can read 3 axes acceleration data



MicroSD card slot*1

Connect microSD card

Default boot from SD card


LCD interface*1

FPC0.5mm 24Pin,MCU interface


IPS HD screen*1

1.3 inch IPS screen,resolution 240*240

Have connectted with core board when sold


IPEX Wi-Fi antenna connector

IPEX(first generation) Wi-Fi antenna



Extension female header

Route V831 general IO,used for connecting peripheral



Speaker connector*1

MX1.25 2P interface(1.25mm pitch)




8Ω1W 1609 composite aluminum membrane speakers

Have connectted with core board when sold



Analog electret microphone


    Maix-II-Dock Getting Started Development Route Guide


    • Because Maix-II-Dock runs linux system (tina-linx), so we need to learn to burn the system image first, just like learning how to reinstall the computer system, which helps us start over if you encounter problems, find the "Burn image" article in the left directory to view

    • Learn basic Linux operations, such as how to open a terminal, basic terminal commands, and how to transfer files to the development board, such as serial port usage, adb usage, and other basic operations

    • Select your development language:
      • If you are familiar with C and have some development experience, you can choose to use libmaix
      • If you want to get started quickly and develop in Python, please use MaixPy3 and read its documentation carefully

    • If you need to use AI functions, you can use it with the MaixHub online training platform, this platform provides AI model and project sharing function, save users's time.

    Maix-II brief

    Following the classic K210 Maix-I series AIOT boards, Sipeed continues to launch a number of edge computing boards that can run a complete Linux system, which will be named MAIX-II and MAIX-III in order of performance.

    The MAIX-II series includes a variety of hardware products currently:

    • Maix-II Dock: Recommended products in this series, the chip is Allwinner V831, a cost-effective SOC that can run Linux, and supports hardware AI acceleration (0.2Tops computing power), currently have the best software support in Maix-II series, provide C SDK and Python SDK, and online model training service (MaixHub)

    • MaixSense: The chip is Allwinner R329, which also provides hardware AI acceleration, 0.25Tops computing power.

    • Maix-II-S: The chip is Allwinner V833, an upgraded version of V831, which is mainly used for commercial customization, and individual users should choose carefully.

    2. MaixII Dock

    The chip is Allwinner V831, single-core Cortex-A7 800MHz, 64MiB on-chip DDR2 memory, cost-effective SOC that can run Linux, and supports hardware AI acceleration (0.2Tops computing power), which can be used as a common Linux SOC or used for Edge AI applications.

    This series of recommended products, the most cost-effective, the current software support is the easiest to get started, supports C language development, provides C SDK (libmaix); also provides MaixPy3 support, you can use Python language to develop, you can directly use a large number of Python libraries, and supporting jupyter IDE, and MaixHub fully supports this device

    • Quick overview of product features

    • Real pictures:


    3. MaixSense

    The chip is Allwinner R329, dual-core A53@1.5GHz, on-chip 256MiB DDR3 memory, dual-core HiFi4@400MHz also provides hardware AI acceleration, 0.25Tops computing power, more good at audio field, support armbian system.

    There are many official open materials, and it is more suitable for developers with strong hands-on ability at present.



    4. MaixII S


    It can be understood as a performance upgrade version of V831. Programs on V831 can be directly run on V833. This development board only supports commercial users. Personal users are recommended to choose Maix-II-Dock development board.





    For more information about Sipeed MAIX-II M2 Core Board and Dock, please contact us

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