NetCube Systems Nagami is a small Allwinner T113-S3 system-on-module that I just saw added to Linux 6.18. Besides mainline Linux support, the Allwinner SoM offers somewhat unique or unusual features that include a mini PCIe form factor and an ESP32 co-processor for WiFi 4 and Bluetooth connectivity.
The Nagami also comes with 128MB DDR3 embedded in the T113-S3, 4GB eMMC flash, a Fast Ethernet PHY, and a Qwiic connector for I2C expansion modules. All I/Os are exposed through a standard mini PCIe edge connector: audio I/Os, Ethernet, USB 2.0 OTG/host, and a range of low-speed I/Os.
Nagami SoM specifications:
- SoC – Allwinner T113-S3
- CPU – Dual-core Arm Cortex-A7 @ 1.2 GHz with 32 KB L1 I-cache + 32 KB L1 D-cache per core, and 256 KB L2 cache
- DSP – Single-core HiFi4
- VPU – H.265/H.264 video decoding up to 1080p60 and JPEG/MJPEG video encoding up to 1080p60
- Memory – 128 MB DDR3
- Storage
- 4GB eMMC flash
- I2C EEPROM (QWIIC-compatible with MAC address)
- Networking
- 10/100Mbps Ethernet PHY (LAN8720A)
- WiFi 4 and Bluetooth 5.x via ESP32 chip connected over UART and SDIO; IPEX antenna connector
- Mini PCIe edge connector
- Audio
- Up to 2x I2S/PCM
- Up to 1x SPDIF In & Output
- Ethernet – 10/100Mbps Fast Ethernet
- USB – 1x USB 2.0 OTG, 1x USB 2.0 host
- Low-speed I/Os – Up to 5x UART (2x with RTS/CTS), 2x CAN 2.0B, 4x I2C, 1x SPI with HOLD/WP
- Audio
- Expansion – Qwiic-compatible I2C connector; note: this connector has 5 pins instead of 4, so not technically a Qwiic connector. See the comments section.
- Power supply – +3.3V supply
- Dimensions – 50.95 x 30 mm (Standard Mini PCIe form factor with two mounting holes)
- Temperature Range
- -25 to 75°C without heatsink
- -25 to 85°C with heatsink
The Nagami is compatible with Linux-based embedded operating systems built with tools like Buildroot or Yocto, and supports mainline U-Boot and Linux Kernel builds. It targets industrial & home automation, IoT/IIoT, robotics, and generic embedded systems.
The Linux 6.18 changelog mentions two carrier boards:
The NetCube Systems Nagami Basic Carrier Board is a simple carrier for the Nagami SoM. It is intended to serve as a simple reference design for a custom implementation or just evaluating the module with other peripherals.
The NetCube Systems Nagami Keypad Carrier is a custom board intended to fit a standard Ritto Intercom enclosure and provides a Keypad, NFC-Reader and Status-LED all controllable over Ethernet with PoE support.
However, I could not find any information about those two on the documentation website, which has further details about the module itself and software support.
It’s the second Allwinner board from Austria-based NetCube Systems with mainline Linux support. The other is the Allwinner V3s-based Kumpat industrial automation/embedded system board. There are other Allwinner T113-S3 system-on-modules on the market, such as the MYiR MYC-YT113X and T113-S3 Core Lite, which offer additional interfaces (e.g., RGB LCD, DVP camera…), but all lack mainline Linux support, and instead support is provided through a Linux 5.4 BSP.
NetCube Systems has yet to sell the Nagami SoM and the related carrier boards, but once/if they do, you’ll probably find them on the company’s Tindie store. A few more details may also be found on the company’s website.
Jean-Luc started CNX Software in 2010 as a part-time endeavor, before quitting his job as a software engineering manager, and starting to write daily news, and reviews full time later in 2011.
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