Hey everyone, I wanted to share an exciting update about my recent project with my whole house audio system. After almost a year of troubleshooting and experimenting, I finally managed to integrate UDP support into my Control4 16-channel amplifier using the Hubitat hub. This has been a game-changer for my setup!
For those who might be interested, here’s a quick rundown of what I did. I utilized the Hubitat hub’s ability to send custom LAN commands with the LAN_TYPE_UDPCLIENT option. This allowed me to send volume control commands directly to my amplifier without relying on traditional TCP/IP methods. The key was modifying the hub action to include the UDP client type and ensuring the command structure was correctly formatted.
Here’s a snippet of the code I used:
groovy
String cmd = “0s6379 c4.amp.chvol 02 e0”
String ip = “192.168.101.102:8750”
String deviceNetworkId = “C0A86566:222E”
physicalgraph.device.HubAction x = new physicalgraph.device.HubAction(“${cmd}\r\nHOST: ${ip}\r\n\r\n”, physicalgraph.device.Protocol.LAN)
x.options = [type: “LAN_TYPE_UDPCLIENT”]
sendHubCommand(x)
The response I received confirmed that the command was successfully processed by the amplifier. This breakthrough means I can now seamlessly mute, adjust the volume, and control my entire audio system directly from Hubitat, including the Sonos integration I’ve been working on.
I’m really excited about this accomplishment and hope it might inspire others who are looking to push the boundaries of their home automation setups. If anyone has questions or wants to dive deeper into the technical aspects, feel free to reach out!
Happy automating everyone! 
