I avoided inserting pictures into the original post as it seemed more clean and readable without them. However, we all need some visual stimulation:
(https://i.imgur.com/50guXEu.jpg)
The Raspberry Pi server on top of the network switch; On the right we can notice the breadboard with LEDs connected to the Pi.
(https://i.imgur.com/T47HM1Z.jpg)
The actual web interface in it's connected state (design has been modified)
(https://i.imgur.com/SoznAuG.jpg)
The web interface (client-side) in it's disconnected state (no connection to server)
When I find the time I will attempt to make a synchronous video capture from the screen and the actual hardware each control affects. Sadly from the pictures I can not present you the efficiency of the page and how the status reporting works (essentially the animated status bars you can see in color on the second image).
Hey 8planet.
I didn't understand your question:
So, the IP address is wireless?
If you were meaning to ask whether the assigned IP address shown in the screenshots is the one assigned to the onboard wireless adapter then no, it is a static IP address assigned to the ethernet adapter. As I mentioned before, my Pi server is connected to my router using the 100BASE-T standard or in other words, 100Mbit "Fast" Ethernet.
Here is a diagram similar to yours explaining the various elements on the Raspberry Pi 3 circuit board:
(https://upload.wikimedia.org/wikipedia/commons/e/e4/RaspberryPi_3B.svg)
In the original photos showing my configuration ,the Pi is rotated 180deg
clockwise, compared to this one.