Hi. I have a technical question about a video on the website.
On the product page for the DEV-15110 DMX to LED shield, you guys have a video that shows two of these boards running independent from each other, but both appear to be controlled by the same source signal without an XLR connection. This would indicate that both are being controlled through Wifi.
My question is: How are multiple nodes being controlled here, since I don’t see any documentation on how to do a multi-node configuration in programming, and all of the use-case examples I locate only show a single board being used.
I don’t have a lot of DMX/Artnet experience, so it’s possible this could be a fundamental thing that I’m not yet understanding, or perhaps it’s something that is done via the Resolume application, which I’m not familiar with.
I’d really like to use this shield as a R&D platform for a project that features multi-node control. As a result, I’d really love to know how to repeat what you guys did in the video, if I’m really seeing it correctly. I’d also like to know how many simultaneous slave nodes are accessible at one time like this.
Thanks for the help.
Hi 48tracks,
The demo in the [product video for the ESP32 Thing Plus DMX to LED Shield is just using two of the shields with their own ESP32 Thing Plus. Each ESP32 Thing Plus is running the [Moving Head Example and receiving ArtNet data via a WiFi connection. We cover this and much more in our [Hookup Guide for the DMX to LED Shield.
As for the number of simultaneous slaves, theoretically, the number of “slaves” running this demo is only limited by the number of devices allowed on your WiFi network/router.](SparkFun ESP32 DMX to LED Shield - SparkFun Learn)](SparkFunDMX/examples/Example3-MovingHead/Example3-MovingHead.ino at master · sparkfun/SparkFunDMX · GitHub)](https://www.youtube.com/watch?v=WCxcUrVRrqg)
Thanks for the answer TS-Mark, though it appears my question request wasn’t specific enough.
My question is how are multiple individually IP addressed items being sent the same DMX/ArtNet data simultaneously?
In other words, if “bot A” is at 192.168.1.1, and “bot B” is at 192.168.1.2, how is the same DMX/ArtNet data sent to both IPs at the same time?
In the demo, Andy is just using [Resolume to broadcast to those specific IP addresses. I am not certain of the limitations there but most likely, Resolume will have information on the limitations for devices on a network.](https://resolume.com/)