HuskyLens AI Camera & Display Board is Powered by Kendryte RISC-V Processor (Crowdfunding)

A couple of years ago, I reviewed JeVois-A33 computer vision camera  powered by Allwinner A33 quad-core Cortex-A7 processor running Linux. The tiny camera would implement easy-to-use software for machine vision with features such as object detection, eye tracking, QR code and ArUco marker detection, and so on.

The camera could handle the tasks at hand, but since it relied on purely software computer vision, there were lag for some of the demo applications including 500ms for single object detection, and up to 3 seconds for YOLO test with multiple object types using deep learning algorithms. That’s a bit slow for robotics project, and software solutions usually consume more than hardware accelerated ones.

Since then, we’ve started to see low-cost SoC and hardware with dedicated hardware AI accelerators, and one of those is Kendryte K210 dual-core RISC-V processor with a built-in KPU Convolutional Neural Network (CNN) hardware accelerator and APU audio hardware accelerator found in Sipeed 1 module, Maixduino SBC, and other hardware platforms.

The guys at DFRobot decided to use the Kendryte processor to design an easy-to-use AI camera with an integrated display to perform computer vision tasks similar to the ones made possible with Jevois-A33 camera, but at much lower power consumption, and faster thanks to hardware acceleration. Meet Huskylens.

HuskyLens AI Camera

HuskyLens hardware specifications:

  • SoC – Kendryte K210 dual-core 64-bit RISC-V processor @ 400 MHz with AI accelerators, built-in 6MB SRAM memory for CPU, and 2MB AI SRAM
  • Storage – TBD, but there should be an SPI flash for the upgradable firmware
  • Camera
    • Standard version – 2.0MP camera based on OV2640 sensor
    • Enhanced version – 5.0MP camera based on OV5640 sensor
  • Display – 2.0 IPS screen with 320×240 resolutions
  • Host Interface – 4-pin UART header (9,600 to 2,000,000 Mbps)
  • Power Supply – 3.3 to 5.0V via 4-pin connector; 5V via micro USB port
  • Power Consumption – 220mA @ 3.3V, 140mA @ 5V
  • Dimensions – 52 x 44.5mm

HuskyLens Face RecognitionThe board supports the following algorithms out of the box: object tracking, face recognition, object recognition, line following, color recognition, and tag recognition.

HuskyLens can learn new objects, faces, and colors through a single press, or a long press can start a continuous learning mode that enables it to learn the object or face from different angles and ranges. The more it learns, the more accurate it can be.

Performance-wise, the company explains the classic YOLO artificial intelligence algorithm only runs at 1~2 frames per second with the STMicro STM32H743, but the HuskyLens is 30 times faster. There aren’t many details about the software & firmware but it should rely on the same SDK as other Kendryte boards.

I understand the board can work in standalone mode for education purpose, but it also features a UART interface to connect to robots or other projects powered by development boards such as Arduino, LattePanda, Raspberry Pi and micro:bit, offloading the computer vision tasks. The video below shortly, but clearly showcases what the platform is capable of, and covers various use cases.

DFRobot launched HuskyLens on Kickstarter a few days ago with a 30,000 CAD goal (~$22,800 US), and they’re already funded. I’ll use US dollars going forward. All early bird rewards are gone, but you can still pledge for the 2MP “standard” version for $29.9, while the 5MP “enhanced” model goes for $59.9. If you want to do more than just experimenting with the platform, the tank robot kit featured in the video is also offered for $169. Shipping adds $5.3 to $19 depending on the rewards, and backers can expect their perks to ship around November or December 2019. Remember that’s a crowdfunding campaign, and delays happen often, so don’t assume you’ll necessarily get it before Christmas.

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