6 TOPS on-device AI

INT4/INT8/INT16/FP16/BF16/TF32 support for image recognition, object detection and face recognition.

02

4K@120fps decoding

H.265 / H.264 / AV1 / VP9 / AVS2 decoding and 4K@30fps encoding for smooth, detailed playback.

03

Android 14

A current platform release, kept up to date remotely with our OTA system.

04

Flexible display options

MIPI, LVDS, eDP and HDMI combinations to match industrial and commercial panels.

05

Built-in amplifier

On-board dual-channel 8R/5W amplifier with left and right output, no external module needed.

06

Complete playback features

Landscape and portrait playback, split screen, scrolling subtitles, timer on/off and USB import.

The HYY-021B uses the Rockchip RK3576 octa-core big.LITTLE processor at up to 2.2 GHz, runs Android 14 and carries a 6 TOPS NPU with INT4/INT8/INT16/FP16 mixed precision and 4K@120fps decoding. MIPI, LVDS, eDP and HDMI display options, Gigabit Ethernet, Wi-Fi 6, BT 5.0 and a dual-channel amplifier are all on board.

Specifications

Platform
Processor	Rockchip RK3576, octa-core 64-bit (4× Cortex-A72 + 4× Cortex-A53), up to 2.2 GHz
GPU	ARM Mali-G52 MC3
NPU	6 TOPS with INT4/INT8/INT16/FP16/BF16/TF32 mixed precision
Memory	4 GB / 8 GB / 16 GB LPDDR5
Storage	eMMC 32 GB / 64 GB / 128 GB / 256 GB
OS	Android 14.0
Audio and Video
Video decoding	4K@120fps H.265 / H.264 / AV1 / VP9 / AVS2
Video encoding	4K@30fps H.264 / H.265
Video input	HDMI-IN, up to 3840×2160
Audio	Dual-channel 8R/5W amplifier with left and right output; on-board microphone
Display
eDP	Up to 3840×2160 (alternative to HDMI-OUT)
LVDS / MIPI	LVDS up to 1920×1080; MIPI up to 2560×1440; V-by-One panels supported
Playback	Loop, scheduled and interrupt playback modes
Interfaces
Network	1× Gigabit Ethernet (100/1000M), Wi-Fi 5/6 + BT 5.0
USB	5× internal USB headers, 1× standard USB, 1× USB 3.0
Serial	3× TTL, 1× debug, 1× RS232
Other	RTC, hardware watchdog, scheduled power on/off, GPIO and ADC headers, NFC antenna
Mechanical
PCB	8-layer board, 142 × 83 × 1.6 mm
Mounting	4× ∮3.2 mm mounting holes

Applications

Digital signage: Advertising screens in buildings, lifts, supermarkets and retail chains, in landscape or portrait.
AI security and footfall: Face recognition, footfall statistics and behaviour analysis on the built-in NPU.
Meeting and classroom panels: Touch interaction, external video input and multiple display outputs.
Self-service kiosks: Queue displays, information terminals and smart vending cabinets.
Transport and campus displays: Information boards for stations, airports, campuses and production lines.
Menu boards: Menus and prices switch by time of day and update remotely from the signage system.

Software

The board ships with our own software for a complete hardware-and-software solution:

Digital Signage Publishing System: layout design, scheduling and remote publishing
OTA System: remote firmware and app updates with device management
Industry Test Software: one-tap production-line testing and reports