2023-09-25 Libre Computer AML-S905D3-CC Solitude AI SBC Announcement (Pre)

Libre Computer AML-S905D3-CC Solitude, part of our Cottonwood family, is our latest low-power AI-enabled single board computer designed for rich IO edge applications. As the first low cost < $50 SBC to offer upstream AI and neuro-computing support, this board brings advanced hardware acceleration not found on any other platform.

Compatible with SystemReady IR operating systems, Solitude incorporates a advanced BIOS compatible with UEFI and supports standard Linux distributions out of the box. It offers seemly hardware migration for existing CC form factor applications that require new additional capabilities of the Cottonwood platform. It can boot any official Libre Computer image for any board since the BIOS abstracts the hardware behind UEFI.

The board offers industry-leading 1W idle power consumption and can be flexibly powered by USB Type-C, Power over Ethernet, or 5V header directly. For rich IO applications, the performance is similiar to our ROC-RK3328-CC Renegade platform with its Gigabit Ethernet and USB 3.0, although now four ports are exposed via USB 3.0 hub. System wake via UART, IR, button, and GPIO are supported for additional power optimization in constrained environments.

New to the Cottonwood family are MIPI CSI and DSI connectors not found on the Potato family. MIPI connectors follow the 22 pin layout found on the Raspberry Pi Zero W and Compute Module Base IO board for re-use with existing cameras and displays. Combined with the 1+TOPs NPU, Solitude is ideal for realtime 1080P+ video footage object detection and other modern AI workloads.


  • 4 E Cores
  • 2 E GPU Cores
  • 1+ TOPs NPU Cores
  • Up to 4GB LPDDR4X
  • USB Type C Power + 2.0 Data Dual Role
  • HDMI 2.1
  • 3.5mm Jack with CVBS and Analog Stereo Audio Output
  • Gigabit Ethernet with WOL
  • 4 USB Type-A 3.0 Hub
  • PoE Connector
  • 40-Pin GPIO Connector
  • IR Receiver Sensor
  • DSI 4-Lane 22-Pin Connector up to 1080P
  • CSI 2-Lane 22-Pin Connector
  • 16MB Open Source UEFI BIOS
  • eMMC 5.x Slim Connector
  • MicroSD Card Slot with UHS SDR104 Support

The 40-pin header offers good pinmux coverage for existing peripherals in the Raspberry Pi and CC ecosystems. Additionally, it features numerous I2S, PDM, and TDM pin for support 16+ far field microphones making Solitude a premier audio core board.

Do you mean that there is going to be 16 Mbit SPI Flash on board?

Yes, there’s 16MB SPI NOR on board.

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