How to Integrate Draper LVC-IV Projector Screens with Control4 via the LVC-IP Bridge

Keywords: Draper screen Control4 integration, LVC-IV Control4, Draper LVC-IP Bridge, motorized projector screen Control4, Chowmain TCP UDP driver, Control4 projector screen automation

Integrating a Draper motorized projection screen into a Control4 automation system can be simple and powerful—if you know the correct protocol. In this guide, we’ll walk through how to use Draper’s LVC-IV low-voltage controller and the LVC-IP Bridge to automate screen movement using Control4 and the Chowmain Generic TCP/UDP Command driver.

This solution allows Control4 to send raw UDP hex commands to the Draper screen via IP—no IR, contact closures, or serial converters required.

? Required Hardware

• Draper LVC-IV Controller
• Draper LVC-IP Bridge
• Control4 Controller running OS 3.1.3 or newer
• Chowmain Generic TCP/UDP Command Driver for Control4

? Understanding Draper’s LVC-IP Bridge

The LVC-IP Bridge is a network adapter that enables IP control of Draper motorized screens. When paired with the LVC-IV module, it can receive UDP packets formatted in hexadecimal. Draper provides a sample IP configuration screen like this:

We recommend assigning the LVC-IP Bridge a static IP on your AV VLAN and noting the UDP port number (usually 12343).

You can download the full Draper LVC-IP Bridge instruction manual here.

? UDP Hex Commands for Screen Control

The LVC-IV requires control via raw hexadecimal values. Below are the required command bytes for Channel 1 / ID 1:

? Composer Pro Configuration

1. Install the Chowmain Generic TCP/UDP Command driver into your project.
2. In the Programming tab, choose an event trigger (like a keypad or touchscreen button).
3. Choose Send Generic UDP Command from the driver.
4. Enter:
   • IP Address: The static IP of your Draper LVC-IP Bridge
   • UDP Port: As shown on the device screen (typically 12343)
   • Command: Use the hex values shown above

? Adding Experience Buttons (Optional)

For touchscreen or app control, add Programming Experience Buttons to the room:

• Name them: Screen Up, Screen Down, Screen Stop
• Set them to Visible in Navigator
• Use Composer Pro to program each button to send the corresponding UDP command

? Troubleshooting Tips

• Make sure your Control4 controller and the Draper IP Bridge are on the same subnet
• Use UDP, not TCP
• Enter all hex bytes correctly and in the required format: 0xNN separated by spaces
• The final byte 0x0A is a required line feed

? Conclusion

This Control4 + Draper integration is a clean, professional-grade solution for any AV installer looking to automate projection screens without relays or IR. Using the LVC-IP Bridge and Chowmain’s driver gives you reliable UDP control using officially documented hex commands—perfect for commercial and high-end residential projects alike.

? Need Expert Help?

Need help integrating Draper projection screens, video walls, or full-room AV automation? Contact Brivy IT — we specialize in Control4 AV design, deployment, and automation for Utah and beyond.