Tiny 1GHz RISC-V SBC Launches at $39

Written by Eric Brown

MangoPi has opened $39 preorders for a 40 x 40mm “MangoPi-Nezha MQ” SBC that runs Linux or RT-Smart on a 1GHz, RISC-V based Allwinner F133-A SoC with 64MB DDR2. The SBC supplies 2x Type-C, WiFi, MIPI-DSI, RGB touch, DVP camera, GPIO, and audio I/O.

The MangoPi project from Beijing Wadora Technology Co. teased its MangoPi-MQ1 SBC last October with minimal details. The tiny RISC-V board has now arrived in a Crowd Supply campaign as the MangoPi-Nezha MQ. Equipped with the Allwinner F133-A (D1s), a spin-down of the Allwinner D1 that powers Sipeed’s LicheeRV SBC, the MangoPi-Nezha MQ is available for $39, with free global shipments starting on July 7. The SBC was originally intended to be sold for $10, but as we documented in our recent Linux hacker board catalog, prices are way up across the industry.

MangoPi is also prepping a MangoPi MQ-Dual SBC with the same form factor and features as the MangoPi-Nezha MQ, but with a dual-core Cortex-A7 Allwinner T113-S3. There are also preliminary product pages for an Allwinner D1-based MQ-Pro SBC, as well as MangoPi A1 (Amlogic S905) and A1-Pro (hexa-core -A73 and -A53 Amlogic A311D) SBCs (see farther below).

MangoPi-Nezha MQ front (left) and back and front views
(click images to enlarge)

The open-spec, 40 x 40mm MangoPi-Nezha MQ runs the OpenWrt-based Tina-Linux, Debian, or the RT-Thread related RT-Smart microkernel OS on the single-core Allwinner F133-A. Like the Allwinner D1, the F133-A (D1s) has a 1GHz, Alibaba/T-Head XuanTie C906 RISC-V core, which integrates RISC-V RV64 vector extensions for AI applications.

The F133-A adds 64MB of DDR2 via a SIP module. Display output drops to 1080p60 from 4Kp30, and Allwinner has removed the HDMI interface and HiFi 4 audio DSP. The I2S/PCM and ADC interface counts have dropped from three to two.

The MangoPi-Nezha MQ is equipped with a microSD slot and a pair of USB Type-C ports, one of which powers the board. There is also a 2.4GHz WiFi chip, 44x GPIO pins, and media features that include MIPI-DSI, RGB with touch, and an amp, mic, and audio out header.

A DVP camera interface is said to support an add-on board with a camera and a 10/100 Ethernet port (via RMII). The Crowd Supply page has no details on the add-on, which will presumably be made available for order in the coming months.

MangoPi-Nezha MQ detail view
(click image to enlarge)

Tina Linux, combined with the LVGL open-source graphics library, “allows you to take full advantage of the board’s hardware features,” says MangoPi. You also get RT-Smart, an open source microkernel OS for real-time applications that is developed by and related to RT-Thread. “Microkernels fill the gap between traditional real-time operating systems (RTOSs) and heavier solutions like Linux,” says MangoPi, which collaborated with RT-Thread and Allwinner on the MQ.

Specifications listed for the MangoPi-Nezha MQ include:

  • Processor — Allwinner F133-A (1x XuanTie C906 RISC-V core @ 1GHz)
  • Memory/storage:
    • 64MB DDR2 (via SoC)
    • MicroSD slot
    • Solder points for adding NAND/NOR flash
  • Networking:
    • 2.4GHz WiFi (Realtek RTL8189); u.FL connector
    • 10/100 Ethernet to be available later on DVP add-on board
  • Media I/O:
    • MIPI-DSI (15-pin RPi compatible FPC)
    • RGB (40-pin FPC with 4-wire resistive touch)
    • Capacitive touch (6-pin FPC)
    • DVP camera interface with RMII support for upcoming camera/LAN add-on
    • 1W amp; capacitor microphone; audio out header
  • Other I/O:
    • 2x USB Type-C ports (1x host, 1x OTG)
    • UART header
    • 44-pin (2×22) GPIO with I2C, SPI, etc.
  • Other features — Boot and reset buttons; LED; 4x fixed assembly feet
  • Power — via USB Type-C OTG
  • Operating system — Tina-Linux (OpenWrt-based); Debian; RT-Smart microkernel OS

MangoPi MQ-Dual, MQ-Pro, and A1/A1-Pro

MangoPi is prepping several new boards including a MangoPi MQ-Dual SBC. As reported by CNXSoft in mid-February, the Dual has the same PCB and features as the MangoPi-Nezha MQ, but with an Allwinner T113-S3 dual-core Cortex-A7 SoC with 128MB RAM.

MangoPi MQ-Dual (left) and MangoPi MQ-Pro
(click images to enlarge)

MangoPi’s website also has a preliminary product page for an Allwinner D1-based, 65 x 30mm MangoPi-Nezha MQ-Pro, which is shown here. The SBC ships with up to 1GB DDR3 and offers microSD, 40-pin GPIO, WiFi/BT, mini-HDMI, 2x Type-C, DVP/RGMII, MIPI-DSI/LVDS, and audio out.

Finally, there is a MangoPi A1 and A1-Pro (no images) that run Ubuntu or Android 10 on either a quad-core Amlogic S905 or 3-TOPS NPU-equipped, hexa-core -A73 and -A53 Amlogic A311D (Pro). No RAM limit was listed, but preliminary specs include eMMC, microSD, HDMI 2.0, USB 3.0, USB 2.0, 2x Type-C, MIPI-DSI/CSI, 40-pin GPIO, WiFi/BT5, and an M.2 slot.

Further information

The MangoPi-Nezha MQ is available on Crowd Supply through April 14 at $39 with free global shipping. Shipments begin on July 7. More information may be found on the Crowd Supply page, the GitHub page, and the MangoPi website.

This article originally appeared on on March 4, 2022.

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Tiny 1GHz RISC-V SBC Launches at $39

by Eric Brown time to read: 3 min