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HUIDU HD-M21B Specification

Check the latest HUIDU HD-M21B Specification that describes this LCD Controller overview, function list, Dimension Chart, and parameters, Connection ways,etc
HUIDU HD-M21B Specification

HUIDU HD-M21B Specification

Here is the HUIDU HD-M21B Specification to help you know more about HD-M21B LCD Controller overview, tech parameters, features list, Connection methods, product size, interface parameter, etc.

System Overview

HUIDU HD-M21B is a well-built all-in-one LCD Android smart play box, using Rockchip RK3288 quad-core chip solution, equipped with Android 7.1.2 system, main frequency up to 1.8GHz, with super performance. Using Mali-T764 GPU,support AFBC(frame slower compression), 4K/H.265 hard decoding, 1080P video decoding, HDMI interface supports 4K output, 4K video play mode. Supports U-disk, TF card, Wi-Fi, network port and other interfaces, making the product more versatile, and is widely used in intelligent control fields such as advertising machines, interactive all-in-one machines, security, medical care, transportation, finance, industrial control, etc. Due to its hardware platform and Android intelligent features, it can be used on the smart terminal motherboard when human-computer interaction or network device interaction is required, which can be your best choice.

Features

  1. High performance. RK3288 chip adopts quad-core ARM Cortex-A17 architecture, the main frequency can be as high as 1.8GHz, compared with common single-core, dual-core, and quad-core solutions on the market. A qualitative leap in performance, capable of playing various formats of high-definition video screens, and capable of handling complex interactive operations
  2. High stability. The RK3288 Android integrated board adds its own unique technology to the hardware and software to ensure the stability of the product so that the final product can be unattended for 7*24 hours.
  3. High integration. integrates functions such as Ethernet, Wi-Fi, power amplifier, TF expansion card, USB expansion port, HDMI, etc., which greatly simplifies the installation of the whole machine.
  4. High definition. Supports LCD display screens with HDMI interface, and supports cropping screens of various sizes and resolutions.

Basic Parameters

1. Hardware Parameters

Hardware Parameters
CPURK3288, 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

RAMDDR3, 2GB

Built-in storage

capacity

eMMC 8GB (16/32/64 GB)

TF Card expansion (can be used to expand SSD)

Connection

Support RJ45 100M Ethernet port and Ethernet.

Support 2.4G Wi-Fi and Wi-Fi 802.11b / g / n protocol.

Image rotationSupport 0 degrees, 90 degrees, 180 degrees, 270-degree manual rotation
Display interface1 HDMI 1.4 support 4K output
AudioSupport standard left and right channel line output
RTCBuilt-in real-time clock function
USB1USB-2.0 HOST, 1 USB2.0 or OTG
LED1 * power status LED (green), 1 * system LED (green, blinking by default)
Button1 * Recovery button
Power Adapter

Input: AC100-240V.50-60Hz, output: DC12V 1.5A

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

2. Software Parameters

Software Parameters

Operating

system

Android 7.1.2

Audio

MP3,WMA,WAV, APE, FLAC, AAC, OGG,M4A,3GPP, etc.

video

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

1080P multi-video decoding

image

Support various picture 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

Typewriting

Standard Android keyboard, optional third-party input method

System Management

The original ecological Android system, open root permissions, can be

customized product development

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

unattended

Support OTA remote upgrade; support U-disk upgrade

Support boot animation definition

Support server / standalone mode switch

Support Wi-Fi hotspot

System

watchdog

Support software watchdog

Product Size Specifications

Side interface size (boxed)
HUIDU HD-M21B Size chart

Product Interface Diagram

HUIDU HD-M21B Interface Diagram

Interface parameter description

1. PWR / DC (power input) Interface

12V DC power supply is used to supply power to the board subsystem only from the DC socket and power Socket.
HUIDU HD-M21B PWR / DC (power input) Interface

2. HDMI Output

Connect to the LCD screen for program display
HDMI Output

3.LAN port

Connect to the Internet/LAN to realize Internet remote cluster management and LAN cluster management.
LAN Port

4. Audio interface and reset control

  1. Standard 3.5mm dual-channel audio interface, which can be directly connected to low-
  2. The reset hole is hidden in the audio port. Long press with a long reset needle to restore the factory settings.
Audio interface and reset control

2.OTG interface

Used to upgrade firmware and other functions, the box can be customized as a USB interface through jumpers before assembly.

Insert the U disk to update the program of the display screen, one of the USB interfaces can be switched to OTG or USB interface through jumpers (OTG and USB need to be set before the factory).

USB interface

4.LAN port

Connect to the Internet/LAN to realize Internet remote cluster management and LAN cluster management.
Network port

5. TF card slot

Insert the TF card to update the program content.
TF card slot

6. SIM card slot (Optional)

Install the 4G mobile phone card interface, and realize remote cluster management after connecting to the Internet (4G module needs to be installed, 4G module is not standard configuration, according to user needs to install before leaving the factory).
SIM card slot

7. OTG Port

Upgrade firmware and other functions, the box can be customized as a USB interface through jumpers before assembly

OTG Port

8. USB Port

Insert the U disk to update the program of the display screen. One of the USB interfaces can be switched to OTG or USB interface through jumpers (OTG and USB need to be set before the factory).
HUIDU HD-M21B USB Port

9. 4G Antenna Port(Optional)

Connect 4G antenna to enhance 4G signal.(Non-standard interface, closed by default)
Reset pinhole, long press to restore factory settings.
HUIDU HD-M21B 4G Antenna Port

10. Wi-Fi Antenna Port

Connect Wi-Fi antenna to enhance Wi-Fi signal.
HUIDU HD-M21B Wi-Fi Antenna Port

11. IR Receiver Port

Receiving remote control signal, setting and programs switching.
HUIDU HD-M21B IR Receiver Port

12. Infrared remote control receiver

Receiving remote control signals, debugging and program playback switching functions
Infrared remote control receiver

Communication Methods

1: Update Programs by Wi-Fi

Update Programs by Wi-Fi

Mobile APP-“LedArt” download here.

2: Update Program with U-disk

Update Program with U-disk

3: Update Program by TF Card

Update Program by TF Card

4: Update Programs with LAN

Update Programs with LAN

5: Update Programs by the Internet

Update Programs by the Internet

Note:

  1. The 4G module is an optional accessory, installed in the playback box before leaving the factory;
  2. Non-standard features, the picture of the specification may be slightly different from the actual product, if you have any questions, please contact Huidu Technology for confirmation;

Statement

This HUIDU HD-M21B Specification is just for reference only, if you have any problems during using this LCD Screen Controller or have any questions about this datasheet, please contact the HUIDU tech department.

HUIDU HD-M21B Specification

Check the latest HUIDU HD-M21B Specification that describes this LCD Controller overview, function list, Dimension Chart, and parameters, Connection ways,etc
HUIDU HD-M21B Specification

HUIDU HD-M21B Specification

Here is the HUIDU HD-M21B Specification to help you know more about HD-M21B LCD Controller overview, tech parameters, features list, Connection methods, product size, interface parameter, etc.

System Overview

HUIDU HD-M21B is a well-built all-in-one LCD Android smart play box, using Rockchip RK3288 quad-core chip solution, equipped with Android 7.1.2 system, main frequency up to 1.8GHz, with super performance. Using Mali-T764 GPU,support AFBC(frame slower compression), 4K/H.265 hard decoding, 1080P video decoding, HDMI interface supports 4K output, 4K video play mode. Supports U-disk, TF card, Wi-Fi, network port and other interfaces, making the product more versatile, and is widely used in intelligent control fields such as advertising machines, interactive all-in-one machines, security, medical care, transportation, finance, industrial control, etc. Due to its hardware platform and Android intelligent features, it can be used on the smart terminal motherboard when human-computer interaction or network device interaction is required, which can be your best choice.

Features

  1. High performance. RK3288 chip adopts quad-core ARM Cortex-A17 architecture, the main frequency can be as high as 1.8GHz, compared with common single-core, dual-core, and quad-core solutions on the market. A qualitative leap in performance, capable of playing various formats of high-definition video screens, and capable of handling complex interactive operations
  2. High stability. The RK3288 Android integrated board adds its own unique technology to the hardware and software to ensure the stability of the product so that the final product can be unattended for 7*24 hours.
  3. High integration. integrates functions such as Ethernet, Wi-Fi, power amplifier, TF expansion card, USB expansion port, HDMI, etc., which greatly simplifies the installation of the whole machine.
  4. High definition. Supports LCD display screens with HDMI interface, and supports cropping screens of various sizes and resolutions.

Basic Parameters

1. Hardware Parameters

Hardware Parameters
CPURK3288, 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

RAMDDR3, 2GB

Built-in storage

capacity

eMMC 8GB (16/32/64 GB)

TF Card expansion (can be used to expand SSD)

Connection

Support RJ45 100M Ethernet port and Ethernet.

Support 2.4G Wi-Fi and Wi-Fi 802.11b / g / n protocol.

Image rotationSupport 0 degrees, 90 degrees, 180 degrees, 270-degree manual rotation
Display interface1 HDMI 1.4 support 4K output
AudioSupport standard left and right channel line output
RTCBuilt-in real-time clock function
USB1USB-2.0 HOST, 1 USB2.0 or OTG
LED1 * power status LED (green), 1 * system LED (green, blinking by default)
Button1 * Recovery button
Power Adapter

Input: AC100-240V.50-60Hz, output: DC12V 1.5A

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

2. Software Parameters

Software Parameters

Operating

system

Android 7.1.2

Audio

MP3,WMA,WAV, APE, FLAC, AAC, OGG,M4A,3GPP, etc.

video

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

1080P multi-video decoding

image

Support various picture 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

Typewriting

Standard Android keyboard, optional third-party input method

System Management

The original ecological Android system, open root permissions, can be

customized product development

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

unattended

Support OTA remote upgrade; support U-disk upgrade

Support boot animation definition

Support server / standalone mode switch

Support Wi-Fi hotspot

System

watchdog

Support software watchdog

Product Size Specifications

Side interface size (boxed)
HUIDU HD-M21B Size chart

Product Interface Diagram

HUIDU HD-M21B Interface Diagram

Interface parameter description

1. PWR / DC (power input) Interface

12V DC power supply is used to supply power to the board subsystem only from the DC socket and power Socket.
HUIDU HD-M21B PWR / DC (power input) Interface

2. HDMI Output

Connect to the LCD screen for program display
HDMI Output

3.LAN port

Connect to the Internet/LAN to realize Internet remote cluster management and LAN cluster management.
LAN Port

4. Audio interface and reset control

  1. Standard 3.5mm dual-channel audio interface, which can be directly connected to low-
  2. The reset hole is hidden in the audio port. Long press with a long reset needle to restore the factory settings.
Audio interface and reset control

2.OTG interface

Used to upgrade firmware and other functions, the box can be customized as a USB interface through jumpers before assembly.

Insert the U disk to update the program of the display screen, one of the USB interfaces can be switched to OTG or USB interface through jumpers (OTG and USB need to be set before the factory).

USB interface

4.LAN port

Connect to the Internet/LAN to realize Internet remote cluster management and LAN cluster management.
Network port

5. TF card slot

Insert the TF card to update the program content.
TF card slot

6. SIM card slot (Optional)

Install the 4G mobile phone card interface, and realize remote cluster management after connecting to the Internet (4G module needs to be installed, 4G module is not standard configuration, according to user needs to install before leaving the factory).
SIM card slot

7. OTG Port

Upgrade firmware and other functions, the box can be customized as a USB interface through jumpers before assembly

OTG Port

8. USB Port

Insert the U disk to update the program of the display screen. One of the USB interfaces can be switched to OTG or USB interface through jumpers (OTG and USB need to be set before the factory).
HUIDU HD-M21B USB Port

9. 4G Antenna Port(Optional)

Connect 4G antenna to enhance 4G signal.(Non-standard interface, closed by default)
Reset pinhole, long press to restore factory settings.
HUIDU HD-M21B 4G Antenna Port

10. Wi-Fi Antenna Port

Connect Wi-Fi antenna to enhance Wi-Fi signal.
HUIDU HD-M21B Wi-Fi Antenna Port

11. IR Receiver Port

Receiving remote control signal, setting and programs switching.
HUIDU HD-M21B IR Receiver Port

12. Infrared remote control receiver

Receiving remote control signals, debugging and program playback switching functions
Infrared remote control receiver

Communication Methods

1: Update Programs by Wi-Fi

Update Programs by Wi-Fi

Mobile APP-“LedArt” download here.

2: Update Program with U-disk

Update Program with U-disk

3: Update Program by TF Card

Update Program by TF Card

4: Update Programs with LAN

Update Programs with LAN

5: Update Programs by the Internet

Update Programs by the Internet

Note:

  1. The 4G module is an optional accessory, installed in the playback box before leaving the factory;
  2. Non-standard features, the picture of the specification may be slightly different from the actual product, if you have any questions, please contact Huidu Technology for confirmation;

Statement

This HUIDU HD-M21B Specification is just for reference only, if you have any problems during using this LCD Screen Controller or have any questions about this datasheet, please contact the HUIDU tech department.

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