Vivid Unit – An RK3399-Based SBC with a Built-In Touchscreen Display

Vivid Unit – An RK3399-Based SBC with a Built-In Touchscreen Display

The Vivid Unit is an RK3399-based Single Board Computer (SBC) featuring a 5.5-inch touchscreen display, 4GB LPDDR4 RAM, and 32GB eMMC storage along with Ethernet, Wi-Fi (802.11b/g/n), and Bluetooth 4.1, USB 3.1 Gen1, HDMI, and a 40-pin GPIO harder. They were designed for smart home automation, robotics, and industrial control systems applications.

Inside the Vivid Unit Box, you will get a touchscreen, braces, M3 screws, and standoffs. Despite the market shift towards Rockchip RK3568 or RK3588, it uses the RK3399 for its mature software stack. UUGear offers Debian 11 OS images, with or without RetroPie, rather than the newer Debian 12. Its GitHub hosts Linux 5.10.110 and u-boot 2017.09, indicating older software versions. Additional resources include VGP GPIO CLI/GUI utility repositories and VSA screen assistant, with further documentation on the product page.

Vivid Unit Technical Specification:

  • Processor and Memory
    • ARM CPU: RK3399 (Cortex-A72 Dual-core + Cortex-A53 Quad-core)
    • GPU: Mali-T860MP4
    • RAM: 4GB LPDDR4
    • Storage: 32GB eMMC
  • Connectivity
    • Ethernet x1 (RJ45 connector)
    • Wi-Fi (802.11b/g/n)
    • Bluetooth 4.1 (BLE)
  • Display and Touchscreen
    • Display: 5.5 inches, 1280×720 resolution
    • Touchscreen: Capacitive multi-touch
  • GPIO
    • 40-pin header with Raspberry Pi compatible pinout
    • SPI x 1
    • I2C x 2
    • UART x 1
    • SDIO x 1
  • USB Ports
    • USB 3.1 Gen1 x 2 (each has 5 Gbps bandwidth)
    • USB 2.0 x 2 (as pin headers)
    • USB type-C x1 (for power and flashing OS)
  • Audio
    • Microphone: Stereo microphone array
    • Speaker: Built-in speaker
    • Headphone jack: 3.5mm
  • Camera Interface
    • MIPI CSI x 1
  • Additional Interfaces
    • NVMe M.2 interface x 1
    • 10-bit ADC channels x 3 (via 4-pin header)
  • Power
    • DC 5V (via USB type-C cable)
    • POE (DC 48V via RJ45 connector)
  • Buttons
    • Power button x 1
    • Volume button x 2
  • Dimensions and Weight
    • Dimensions: 146mm x 78.2mm x 19mm
    • Weight: 175g


The video highlights the Vivid Unit as a versatile voice assistant, powered by Google’s Speech Recognition and Text-to-Speech services, along with ChatGPT-4 technology. It’s showcased for various applications including Smart Home automation, robotics, industrial controls, mobile computing, and classic gaming. Available for 99 Euros, it can be purchased directly from UUGear’s online store.

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About Debashis Das

Tech Content Creator | Hardware Design Engineer | IoT Enthusiast | Digital Storyteller | Video Creator | From crafting digital dialogues at Semicon Media to orchestrating online engagement at, my journey is about making tech talk interesting and accessible. In the quiet corners of the day, I advocate for easier tech education, one tutorial at a time. Let's connect and keep the digital dialogue going!

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