The Avaota F2 marks the first single-board computer built around Allwinner's V861 dual-core 64-bit RISC-V processor, packing 128MB of on-chip DDR3 memory, 4K camera support, H.265 video encoding, and a 1 TOPS AI accelerator into a compact 4.0 cm by 2.2 cm (1.6 by 0.9 inches) package. The board improves on its predecessor, the Avaota F1, by supporting both Full HD and 4K camera sensors through dual MIPI CSI connectors, adding motor control headers for pan-tilt-zoom camera applications, and expanding audio capabilities with one speaker and two microphone connectors.
The Allwinner V861M2 system-on-chip combines two XuanTie C907 RISC-V cores running at 1.4GHz with RVV 1.0 vector extensions, plus a single E907 core at 800MHz for background tasks. Video encoding reaches 4K at 25fps in H.264 or H.265, while the integrated NPU delivers 1 TOPS of INT8 performance for AI-enhanced image processing. Storage options include 16MB of onboard NOR flash and a microSD card slot, with expansion through dual 17-pin headers exposing up to 28 GPIO pins.
The board runs OpenWrt 21.04 based on Allwinner's Tina Linux SDK with a Linux 6.6 kernel. Hardware design files, schematics, PCB layouts, and bill of materials are available on GitHub under a Creative Commons CC0 license. The previous Avaota F1 model currently sells for around $33 (€30) as part of a development kit, with the F2 expected to appear on Taobao in the coming weeks.
