Multi-screen Splicing Playback

Multi LCD screen splicing playback by Huidu Technology Cloud Platform, it use Android motherboard HD-M21 control system.

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Ⅰ. Overview

HD-M21 is a well-built all-in-one motherboard, using Rockchip RK3288 quad-core chip solution, equipped with Android 7.1.2 system, the main frequency is up to 1.8GHz, with super performance. Adopts Mali-T764 GPU, supports AFBC (Frame Slow Slave Compression), 4K/H.265 hard decoding, 1080P video decoding, HDMI interface 4K output, 4K video playback. Supports infrared remote control, Wi-Fi, RJ45 and other rich interfaces to make the product more versatile. It is widely used in advertising, interactive all-in-one, security, medical, transportation, finance, industrial control and other intelligent control fields, which can accelerate Product development cycle. Due to its hardware platform and Android's intelligent characteristics, when it is necessary to perform human-computer interaction and network device interaction, it can be used on the smart terminal motherboard, which can become your best choice.

M21 is standard with 2.4GHz frequency Wi-Fi module (optional 5GHz frequency), supports Bluetooth 4.2, support sending programs via Bluetooth.

 

Ⅱ. Features

l  High performance. Uses a quad-core ARM Cortex-A17 architecture, the main frequency can be as high as 1.8GHz, compared with the single-core, dual-core, and quad-core solutions common in the market. It has a qualitative leap in performance, can play high-definition video in various formats, and can handle complex interactive operations.

 

l  High stability. RK3288 Android integrated board, in hardware and software, add your own unique technology to ensure the stability of the product, can make the final product 7 * 24 hours unattended.

 

l  High integration. RK3288 Android integrated board integrates Ethernet, EDP, Wi-Fi, power amplifier, TF expansion card, USB expansion port, IR remote control function, HDMI, LVDS, backlight control, microphone and other functions, greatly simplifying the overall design.

 

l  High scalability. SIX expansion USB ports (4 ports are PIN type, 2 ports are standard type), 2 serial ports + 1 expandable debug serial port, five IO expansion ports can expand more peripheral device.

 

l  High definition. Supporting various LVDS / EDP / HDMI interfaces and cropping screens of various sizes and resolutions.

 

l  Perfectly support multiple mainstream touch screen functions such as multi-point infrared touch, multi-point capacitive touch, multi-point nano film touch, multi-point acoustic wave touch, multi-point optical touch, etc.

Chapter II Specifications

Ⅰ. Basic Parameters

1. Hardware Parameters

Hardware   specifications

   

CPU

   

RK3288, Quad-core, the highest frequency 1.8GHz,Android 7.1.2

   

GPU

   

Mail-T764 GPU MP4 Quad-core GPU

Supports OpenGL ES1.1/2.0,OpenVG1.1,OpenCL

   

Memory

   

DDR3, 2GB by default

   

Built-in storage   capacity

   

eMMC 8GB   supports 16/32 / 64GB

TF Card expansion (can be used to expand SSD)

   

Network

   

Support RJ45 R / A 100M Ethernet,   support Ethernet.

Supports 2.4G / 5G Wi-Fi and Wi-Fi   802.11b / g / n protocols.

Support Bluetooth 4.2, sending   program by Bluetooth

   

Image rotation

   

Support manual rotation of 0 degrees, 90 degrees, 180   degrees, 270 degrees

   

Display interface

   

1 * LVDS interface (single / dual, 6-bit / 8-bit),   support 3.3V / 5V / 12V power supply

1 EDP interface, 1 HDMI1.4 interface, support 4K output

Support dual screen simultaneous display function, can   directly drive interface LCD screen with multiple resolutions

Onboard backlight control supports 12V backlight power   supply

   

Audio

   

Support standard left and right channel line output

   

Power amplifier

   

2 outputs (8 ohms, 10 watts dual audio amplifier   output)

   

Microphone

   

Differential MIC input

   

Touch screen

   

Support USB multi-point infrared touch, multi-point   capacitive touch, multi-point nano film touch, multi-point acoustic wave

Touch, multi-point optical touch and more.

   

RTC

   

Built-in real-time clock function

   

USB

   

1 USB-2.0 HOST, 1 USB-2.0 OTG, 4   extended USB ports (one of USB share with 4G module)

   

Infrared

   

Infrared receiver, support infrared remote control   function

   

LED

   

1 * Power status LED (green), 1 * System LED (green, blinking by   default)

   

Button

   

1 * upgrade key

   

Serial port

   

2 UART port, 1 DEBUG port

   

IO port

   

5 IO input and output control, can   be used as key scanning control

   

Power Adapter

   

Input: AC100-240V.50-60HZ, Output: DC12V 1.5A

(Requires surge voltage less than 18V and ripple   voltage less than 100mV)

   

 

2. Software Parameters

Software Specifications

   

operating system

   

Android 7.1.2

   

Audio

   

MP3, WMA, WAV, APE, FLAC, AAC, OGG, M4A, 3GPP and other   formats

   

Video

   

Support H.264, VP8, MAV, WMV, AVS, H.263, MPEG4 and   other video formats

1080P multi-video decoding

   

Image

   

Support various image formats such as JPG, BMP, PNG

   

System comes with   application software

   

APK Installer, Email, Calculator, Browser, Recorder,   Calendar, Settings, Clock, Video Player, Search, Contacts, Gallery, Download,   Camera, Music, Explorer, etc.

   

Language

   

support multi-language

   

Input

   

Standard Android keyboard with optional third-party   input method

   

System Management

   

Original ecological Android system, open root   permissions, and can customize product development

   

Real-time remote monitoring, system crash   self-recovery, unattended 7 * 24 hours

   

Support OTA remote upgrade; support U disk upgrade

   

Support boot animation definition

   

Support server / stand-alone mode switching

   

Support Wi-Fi hotspot

   

System watchdog

   

Support software watchdog

   

 

 

 

 

 

 

 


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