How to mount the projector under the ceiling?

Question

WiFi

How is it now customary to transfer a picture to a projector under the ceiling?
It is supposed to hang the projector under the ceiling, if you pull the HDMI to it, it goes out about 15 meters.
The socket for connection should be in the floor, but there are no such sockets under HDMI and they don’t want to pull the HDMI cable.
What is better to do:
Stretch two twisted pairs and take an HDMI-2xR45 adapter?
Take a whistle on Android and transfer a picture via Miracast?
Take a projector with wifi-ethernet and transfer the picture over the network using a program from the manufacturer?

Answer 1

It depends on what will be shown on the projector and why you need to connect to it.
If these are presentations / pictures, then you can use wi-fi-lan-mira-chrome-cast, the traffic there is small and not critical.
If video, then a guaranteed environment is better (hdmi / vga / lan / hdmi-over-lan wire)
Also, if there is always only one computer on the projector, then you can fence anything.
If you need to throw up guest laptops for each lecture, then the hdmi + vga input is ideal, because. you’ll get tired of setting up casts for everyone, and so you pushed it in and off we go