Set msg.topic to the DMX channel (1-512) and msg.payload to the value (0-255). Use the 'Manage Palette' option from the Node-Red admin panel, then search from the 'Install' tab. It works with the Chinese usb to DMX adapters readily available (e.g. This node looks for a UDMX dongle with USB ID 16c0:05dc and allows a single DMX channel to be set to a value. Turns out they're exactly the same.A node for outputting DMX through a USB dongle They look different so I got the second one thinking it would be a different model hoping to avoid the problem I'm having now. The 2 most common inexpensive usb to dmx that are out there. If it helps anyone the two dongles I have are these: Then it would alternate sending universe 1 and universe 2 to just the first dongle I plugged in never recognizing the second (regardless of port order) Even with these steps, and a few other variations I tried, no matter what the two instances of uDMXCapture would fight over control of the fixture, so the first instance would work and then the next instance would start fighting for control once I set the universe to 1. So unfortunately this didn't work for me. Thanks a lot to LUTZ from for his kind help. ** If serial number of two dongles is the same, you should change serial number in codes (at least for one dongle), recompile and burn again the Atmel microcontroller firmware. * You can know the serial number of your dongle's firmware executing uDMXArtnet.exe with no commands, only one dongle connected at a time, and setting verbose to highest value '9'. FreeStyler will send DMX data to Art-Net nodes and each Art-Net node will send data to each dongle. Configure the two FreeStyler's Universes for Art-Net output (Universes 0 and 1 also - those chosen for Art-Net nodes). Set, in example, Art-Net Node 1 for working with Universe 0 and Art-Net Node 2 for working with Universe 1. If you (like me) face problems passing Art-Net data from FreeStyler to uDMXArtnet, then use 'uDMXcapture' (2) instead:Īt this point you should have two Art-Net nodes, each one connected to a different dongle. One instance will connect to dongle with serial and the other to dongle with serial. So, in this case, it's needed to open two instances of Art-Net node 'uDMXArtnet' (1) provided by : Firmware of each microcontroller has a SERIAL NUMBER value, which was set in the codes before compiling. The core of an uDMX dongle is an Atmel Atmega8 microcontroller. It's possible to connect not only two, but many uDMX dongles on a single computer. Finally, I've found a solution to this problem.

Node udmx