Writing this on Tuesday 2-Oct and what's beating me this week is the Wemos. I want to connect it to Neopixel and just nothing is working. I've got the right pin, the power, the neopixel is working. But nada. It's really frustrating :(
Part of the problem is I've only had snippets of time to work on it. So by the time I setup and plug everything in, I only have a few minutes to debug.
If you can't dedicate the time to a project don't be surprised when it fails!