How to organize scoreboard monitors in the school premises?

Question

Iron

It is necessary to make monitors with presentations at school. We want to hang 2-4 monitors in the corridors, where people are waiting. Content on them will be played from one source.
What is the best way to organize this?
As I understand it, you need special video cards for multiple monitors, or maybe there are simpler options?

Answer 1

As an alternative, various single-board devices (raspberry, orange PI) or android dongles

Answer 2

Don't forget about the length of the wires. Hdmi can be stretched for 100-200 meters. VGA is much smaller. If the content is not dynamic (rarely changes), then it’s easier to buy USB TVs and play videos on them.

Answer 3

For such purposes, we use TVs with a built-in browser and through it an internal special website is opened. By the ip of the TV, we determine what content to display on it: video, slide show, just text.

Answer 4

If the question is to "extend" the signal from the video card, then use HDMI -> Ethernet extenders