There is a brick wall between the garden 25m open air and the window of my living.
If I put the WEMOS module inside the garage I don't have any signal anymore in my home.
As soon as I get away from the garage where the ESP module is located, the strength is reduced fast.
I have hooked a ducky antenna to the module, but this doesn't seem to make things better.
If I watch several range tests, they are all getting a much better result.
I would think that I could get further with these modules because when I put the module on the attic, there are two concrete floors between the living, and the strength is stronger than the test in the garage.