Avaota A1 open-source hardware SBC is powered by Allwinner T527 octa-core Cortex-A55 SoC

We’ve recently covered MYiR Tech MYD-LT527 industrial development board based on Allwinner T527 octa-core Cortex-A55 AI SoC and noted Orange Pi is working on one that should even get mainline Linux support. The Avaoto A1 offers another Allwinner T527 hardware option with an SBC design that’s fully open-source.

The board is equipped with up to 4GB RAM, 128GB eMMC flash, HDMI and DisplayPort video outputs, two gigabit Ethernet ports, a WiFi 6 and Bluetooth 5.4 module, a few USB ports, a 3.5mm audio jack and the usual 40-pin GPIO header for expansion.

Avaota A1 open-source hardware Allwinner T527 SBC

Avaota A1 specifications:

  • SoC – Allwinner T527 (or Allwinner A527 with Avaota A1C board, not sure what the differences are between the two)
    • CPU
      • Octa-core Arm Cortex-A55 processor with four cores @ 1.80 GHz and four cores @ 1.42GHz
      • XuanTie E906 RISC-V core up to 200 MHz
    • GPU – Arm Mali-G57 MC1 GPU with support for OpenGL ES 3.2/2.0/1.1, Vulkan 1.1/1.2/1.3, OpenCL 2.2
    • DSP – 600MHz HIFI4 Audio DSP
    • AI accelerator –  Up to 2 TOPS NPU
  • System Memory – 1GB, 2GB, or 4GB LPDDR4/4X
  • Storage
    • 16GB, 32GB, 64GB, or 128GB eMMC 5.1 flash
    • 128Mbit SPI flash for bootloader
    • MicroSD card slot that can also serve as a JTAG interface
  • Display interfaces
    • HDMI 2.0 port
    • DisplayPort interface
    • Multi-function connector with RGB, MIPI DSI, LVDS, and MIPI DBI interfaces
  • Camera – 4-lane MIPI CSI interface for OV13850 camera module, 13MP ISP
  • Audio – 3.5mm audio jack (stereo output and microphone)
  • Networking
  • USB – 1x USB 3.0 port, 1x USB 2.0 port, 1x USB OTG Type-C port
  • Serial – CAN Bus interface
  • Debugging
    • Serial debug port (USB-C)
    • JTAG via microSD card socket or multi-purpose
  • Expansion
    • 40-pin GPIO header
    • Multi-function connector with various display interfaces, I2C, UART, I2S, SPI, etc…
  • Misc
    • Power FEL, and RST buttons
    • 4x RGB LED
  • Power Supply – 9 to 12V DC / 2A via DC jack
  • Dimensions – TBD
Avaota A1 PCB bottom
Bottom side (rendering)
Allwinner T527 SBC block diagram
Avaota A1 block diagram
Allwinner T527/A527 block diagram
Allwinner T527/A527 block diagram

YuzukiHD provides the hardware design files such as schematics and PCB layout (PDF/Altium), Gerber files, and bill of materials (BoM) on GitHub under a CERN-OHL-S (strongly reciprocal) license.  There’s nothing about software support right now, but a screenshot running Linux 6.6 on the upcoming Sipeed LM4B (Allwinner T527) system-on-module was shared by GLGH_’s Twitter account where we also got the news about the Avaota A1 board. As mentioned in the introduction, Allwinner also gave a presentation about Linux mainline support for Allwinner T527.

Linux 6.6 Allwinner T527 Sipeed LM4B SOM

Some limited documentation is also available on YuzukiHD’s website, but it looks to be a work in progress since many of the links point to the unrelated TinyVision board from the company.  One reason for having limited or incomplete information right now is that the board is not for sale yet, although all hardware design files have already been released. YuzukiHD boards are usually offered on 100Ask in China, and then end up on DongshanPi’s Aliexpress store.

Avaota A1 board top

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1 month ago

Open-source hardware design, decent peripherals, and and an up-to-date version of the Linux kernel? Colour me interested because that’s a lot better than the vast majority of their competitors.

1 month ago

it seems nothing is mainlined yet?

1 month ago

> Allwinner T527 (or Allwinner A527 with Avaota A1C board, not sure what the differences are between the two)

The T527 variants are for ‘industry use’ and have more I/O exposed and a larger thermal range: https://linux-sunxi.org/A523#Family_of_sun55iw3

1 month ago

I know 6.6 is a LTS release, but given all of the monkey business these companies do with kernel numbering I’d prefer to see screen shots of it on 6.9. 6.6.0 isn’t even current, 6.6.23 is.

1 month ago

>  I’d prefer to see screen shots of it on 6.9

Easy to produce when showing the same stage as the 6.6 screenshot above since the kernel will panic directly afterwards. The kernel that works for A523, T527 and friends (sun55iw3 / SoC ID: 0x1890) will be Allwinner’s latest BSP drop, a forward ported mess now reading 5.15.151.

linux-sunxi guys haven’t noticed any sun55iw3 mainlining activities so far exceeding their own (being at the very beginning).

1 month ago

Yeah, that makes sense. I guess I was thinking, if you’re going to fake a mainline kernel, at least fake a modern mainline kernel and not something months old.

1 month ago

Another explanation for the 6.6.0 screenshot above might be Allwinner going ‘bleeding edge’ forward porting their BSP drivers from 5.15 to latest Google GKI 6.6 sources (skipping the 6.1 GKI variant entirely)?

Asides that nicely looking 6.6 number of course this has nothing to do with ‘mainline’…

Tom Cubie
1 month ago

I am glad that YuzukiHD follows the Pi Co ITX form factor defined by Radxa, Radxa will manufacture this open source hardware too.


1 month ago

nm ?

The weet
The weet
1 month ago

Let’s also talk about up-to-date mainline u-boot, please…

Khadas VIM4 SBC