If I asked you to post your flow as it is, I would see what you have done but I would NOT have any data to test it (because I dont have your esp9266 device!)
So if you grab a sample of data (using the copy value button) and paste that into an inject - so that is simulates data coming from your esp9266 device - then you can post a copy of your flow (export flow using CTRL+E) that I can use to try and assist you.
For reference...
There’s a great page in the docs that will explain how to use the debug panel
Pay particular attention to the part about the buttons that appear under your mouse pointer when you over hover a debug message property in the sidebar.
