jmederos / motu-ultralite-mk5-bridge

WebSockets bridge for MOTU UltraLite-mk5

MOTU UltraLite mk5 WebSockets bridge

Now with autoconfig!

This bridge application can be run on a computer connected to MOTU UltraLite mk2 audio interface to relay WebSockets messages bidirectionally between a remote/mobile CueMix 5 app (e.g. on an iPad or iPhone) and the UltraLite. It allows you to control your UltraLite wirelessly/remotely.

What is this repo for, then?

The node.js app in this repo is still useful if you are using Linux (e.g. on a Raspberry Pi) on your computer. MOTU's CueMix 5 and drivers do not work on Linux, so this is a great way to have (wireless!) mixer control of your UltraLite.

Instructions

1. cd into the node folder
2. Install the ws dependency: npm install
3. Run the node app on the computer where the UltraLite is connected: node index.js
4. Run the CueMix 5 app from an iPad/iPhone/Computer that's on the same LAN
5. On the welcome screen, tap/click on IP Connect. Replace the IP with the computer's hostname (computer-name.local) or IP address (192.168.x.x)

If everything is set up correctly, your mobile app should connected to your UltraLite through your computer.

Autoconfig

The UltraLite-mk5 announces it's presence on the ethernet interface it creates by sending a UDP packet to the broadcast address (255.255.255.255). Conveniently, it's in JSON ^o^/

{
    "uid":"000000000000dead", // scrubbed for documentation
    "name":"UltraLite-mk5",
    "ip":"169.254.41.114",
    "model":"UltraLite-mk5",
    "version":"1.2.0+2467",
    "interval":1
}

Knowing this, we just listen for UDP packets until we recieve the correct one and parse the IP. Have only tested the autoconfig functionality on Windows so far...