Huidu HD-C16H Asynchronous LED Controller Overview
The Huidu HD-C16H is a full-color asynchronous LED control card that combines media playback, sending and receiving. It can drive compatible LED modules directly through 16 HUB75E interfaces, or connect to HD series receiving cards through its Gigabit Ethernet output. Built-in Wi-Fi, LedArt mobile control and USB updates make it suitable for LED signs that need scheduled or regularly refreshed content.
Which pixel capacity applies? Use the 260,000-pixel limit when the C16H drives modules directly. The 650,000-pixel system limit applies when cascading compatible HD receiving cards. Module resolution, interface allocation and screen dimensions also affect the usable load.
Direct Drive or Cascaded Receiving Cards
| Configuration | Pixel capacity | Connection and sizing notes |
|---|---|---|
| C16H direct drive | Up to 260,000 pixels | 16 onboard HUB75E ports; maximum width 2,048 pixels. Actual load depends on module resolution and interface use. |
| C16H with HD receiving cards | Up to 650,000 pixels total | One Gigabit Ethernet output; widths up to 8,192 pixels are subject to loading derating above 2,048 pixels. |
Maximum width is a dimension limit, not a promise that every screen at that width fits the pixel budget. Calculate total pixels as width × height, then confirm the complete module layout and receiving-card configuration before ordering. For tall or extra-wide displays, request confirmation of the supported dimensions for the supplied hardware and firmware.
HD-C16H Specifications and Interfaces
| Item | Specification |
|---|---|
| Controller type | Asynchronous full-color LED control card with integrated playback, sending and receiving |
| LED connections | 16 × HUB75E; 1 × Gigabit Ethernet output for compatible HD receiving cards |
| Network communication | 1 × 100 Mbps Ethernet port; TCP/UDP communication |
| Wireless control | Built-in 2.4 GHz Wi-Fi; AP and STA modes, including simultaneous operation; LedArt mobile app |
| USB | Program updates and storage expansion |
| Video decoding configurations | 1 × 4K, or 3 × 1080p, or 8 × 720p, or 16 × 360p |
| Optional HDMI input | Requires an HDMI adapter board; up to 1920 × 1080 at 60 Hz |
| Audio output | 3.5 mm TRS stereo output and 3-pin dual-channel audio connector |
| Sensor connections | 2 general-purpose sensor inputs and 1 dedicated temperature-sensor input; sensors selected separately |
| Control expansion | Onboard relay, 3 CTRL groups and UART communication; RS-232/RS-485 options require the appropriate hardware configuration |
| Remote management | XiaoHui Cloud support; 4G module is optional |
4K decoding is not 4K LED output. Source-video decoding, optional HDMI input resolution and LED pixel loading are separate specifications. The display must remain within the applicable direct-drive or cascaded-system limits.
Local Updates, Wireless Control and Remote Management
Wi-Fi, Ethernet and USB workflows
Use LedArt over Wi-Fi for local wireless content control, Ethernet for wired communication, or a USB drive to update programs. The board supports video, still images, GIFs, text, animated text, documents, tables, clocks and timers. Wi-Fi AP and STA modes provide flexibility for direct access and network-connected operation.
Cloud control and optional hardware
XiaoHui Cloud supports remote management of multiple displays. For installations using cellular connectivity, specify the optional 4G module for the deployment region. Confirm the HDMI adapter, sensors and serial-interface options required for the project; support for an accessory does not mean it is included with every controller.
Applications and Selection Checklist
The HD-C16H is suited to storefront signs, smart light-pole displays, vehicle signs and community information screens. Choose the connection method around the actual LED module layout and the way content will be updated.
- Provide the total screen width and height in pixels, module resolution, scan configuration and driver IC.
- Specify whether modules connect directly to HUB75E ports or use separate HD receiving cards.
- Choose local Wi-Fi, wired Ethernet, USB updates or remote cloud management.
- List any required HDMI adapter, 4G module, sensors or serial communication options.
Browse Huidu LED control products, or contact us with your screen configuration to confirm compatibility and included accessories.
Frequently Asked Questions
Does the HD-C16H control 650,000 pixels by itself?
Its direct module-driving capacity is up to 260,000 pixels. Reaching the 650,000-pixel system capacity requires compatible HD receiving cards connected through the Gigabit output.
Is Wi-Fi included? Is 4G standard?
Wi-Fi is built in and supports LedArt wireless control. The 4G module is an optional accessory for cellular remote-management installations.
Can the HD-C16H accept HDMI video?
Yes, with the optional HDMI adapter board. The specified input limit is 1920 × 1080 at 60 Hz; this does not increase the LED screen’s pixel-loading capacity.
Product Images and Specification Download
Download the Huidu HD-C16H specification (PDF) for interface details, connection diagrams and configuration requirements.
Conclusion
Choose the Huidu HD-C16H for asynchronous LED signage that needs integrated playback, 16 HUB75E outputs and Wi-Fi control. Plan around 260,000 pixels for direct drive or up to 650,000 pixels with cascaded receiving cards, and confirm optional hardware against your installation requirements.
