I use ESP8266-12E NodeMCU
I can’t connect to the Smart Things app.
Hi, it looks like you’re looking with help for a software that’s hosted on GitHub, I guess this one:
This forum is mostly for support with Git and GitHub itself. It is possible that someone who’s familiar with SmartThings visits here, but I think your chances are better if you ask in their community forum or some other place focused on that.