Huidu HD-B6 controller for LED advertising and poster screens
The HD-B6 supports standalone advertising playback and HDMI-connected screen splicing. It combines stored-program playback, synchronous HDMI input, automatic picture scaling and USB content updates. Use compatible receiving cards to drive the LED screen, and HDPlayer to configure the layout and publish programs.
HD-B6 specifications
Reference: HD-B6 Dual-mode Control Card V1.0, May 14, 2020. The loading figures below apply to the documented B6 configuration, not the B6L.
| Single-card loading | 1.3 million pixels; independent maximum width 3840 pixels and height 2048 pixels |
|---|---|
| Multiple-card HDMI splicing | 2.3 million pixels; independent maximum width 3840 pixels and height 4096 pixels |
| Playback | Asynchronous stored programs and synchronous HDMI; automatic scaling of the synchronous picture |
| Storage | 8 GB flash; USB storage expansion |
| Video / content | HD video hardware decoding; 60 Hz frame output; images, GIF, text, Office documents, clocks and schedules |
| Module support | Full-color and single-color modules; conventional and mainstream PWM drivers; static to 1/64 scan |
| Connections | 1 input and 1 output Gigabit RJ45 port; HDMI input and output; USB 2.0; 3.5 mm stereo audio |
| Networking | Ethernet, Wi-Fi and USB; 4G module optional |
| Software | HDPlayer for screen configuration, program editing and publishing; mobile-app management supported |
| Power reference — verify connector | Function table: 12 V adapter; rated voltage: 11.2–12.5 V (12 V typical). Interface list also labels two 5 V connections and a separate 12 V port. Confirm the actual connector before powering. |
| Consumption | 18 W |
| Environment | Working −40°C to +80°C; storage −40°C to +105°C; working humidity 0–95% |
Independent and joined-screen playback
Each advertising screen can run its own program, or HDMI-connected B6 controllers can form a larger display. Plan the pixel dimensions and receiving-card connections within the relevant loading limit. Do not multiply the independent width and height limits to claim a larger supported screen.
Publish programs over Ethernet, Wi-Fi or USB. Internet management can use a network connection or the optional 4G module. Sensor and GPS functions require compatible external hardware; confirm the accessory configuration with the order.
Product images


Frequently asked questions
How many pixels can one HD-B6 control?
V1.0 lists 1.3 million pixels per B6. The maximum width of 3840 and height of 2048 are independent limits subject to that total capacity.
Can multiple poster screens show one larger image?
Yes. Connect the HDMI output of one B6 to the HDMI input of the next and configure the receiving-card layout. The document lists up to 2.3 million pixels for HDMI multiple-card splicing.
Can B6 play both live HDMI and stored programs?
Yes. It supports synchronous HDMI input with automatic scaling and asynchronous playback from stored programs. Its 8 GB flash can be expanded using USB storage.
Is the cellular networking module included?
The 4G module is optional. Wi-Fi is onboard, and Ethernet or USB can be used for program updates. Confirm the required network configuration when ordering.
Should I use a 5 V or 12 V power connection?
The specification has connector-specific 5 V and 12 V descriptions, while its rated-voltage table is 12 V typical. These are not interchangeable instructions. Check the actual board label and the applicable wiring diagram with EagerLED before connection.
Specification download
HUIDU HD-B6 Advertising Machine Splicing Special Control Card Specification





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