HD-WF2 Wi-Fi controller for LED signs
The Huidu HD-WF2 is a compact signage control card with two HUB75E interfaces. It updates content over Wi-Fi or USB and supports text, animated words, images, GIF animation and time-based programs for storefront and door displays.
Program from a phone or computer
Use HDSign (HD2020) on a computer, or LedArt and LedArt lite on a mobile device. The V7.1 connection instructions describe connecting directly to the controller’s Wi-Fi hotspot for configuration and content updates. USB updates are available when a wireless connection is inconvenient.
Arrange content in up to 20 separate areas with individual effects and borders, and store up to 999 programs. Scheduled screen switching and time-period brightness settings help manage regular signage operation.
HD-WF2 technical specifications
| Module interfaces | 2 HUB75E outputs, per V7.1 overview |
|---|---|
| Module compatibility | HUB75 full-color modules; conventional and 2038S ICs |
| Control range | 768 × 64 pixels; maximum width 1,280 or height 128, within the total loading limit |
| Scanning | Static through 1/32 scan |
| Program updates | Wi-Fi hotspot connection or USB flash drive |
| PC software | HDSign (HD2020) |
| Mobile software | LedArt and LedArt lite |
| Flash memory | 8 MByte; practical usage 4.5 MByte |
| Color / grayscale | Seven-color display without grayscale; up to 8 grayscale levels for colorful text |
| Programs / display areas | 999 programs; 20 areas with separate effects and borders |
| Timing / brightness | Timed screen switching; brightness adjustment by time period |
| Supply | DC 4.2–5.5 V; standard 5 V recommended |
| Operating temperature / humidity | −40°C to +80°C; 0–95% RH |
Specifications follow the linked HD-WF2 V7.1 document. Verify the supplied board revision and module configuration; maximum width and height are separate limits.
Product images


Frequently asked questions
How do I connect a phone to the WF2?
Power the card and connect the phone to its Wi-Fi hotspot, then use a compatible LedArt or LedArt lite app version to configure or update programs. The V7.1 specification also describes laptop Wi-Fi connections.
Which LED modules can the HD-WF2 control?
The specification lists HUB75 full-color modules using conventional or 2038S driver ICs, with static to 1/32 scan. Check the module pinout, driver and scan mode before connecting it.
Can I use a 1,280 × 128-pixel screen?
Do not combine the maximum width and height figures. The listed control range is 768 × 64 pixels; alternative layouts must stay within the applicable loading limit and hardware configuration.
Does the WF2 play full-motion video?
The specification describes signage content such as text, images, GIF animations, clocks and counters, with up to eight grayscale levels. It does not establish full-motion video playback capability.
Can programs be updated without Wi-Fi?
Yes. The card supports program updates from a USB flash drive as an alternative to Wi-Fi.






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