Well, I thought I had the MQTT comms working. It can send and receive text to the MQTT feeds, as you can see at the end of the video. But it was only working while it was connected to UIFlow. I downloaded the program onto the Core2. And though it will still receive messages, it isn't sending any more. Not sure what's going on there, if I accidentally broke something before downloading? Who knows. Hopefully I will get that fixed soon and will show some added neon LEDs.