So I have a little project where I want to have lights scattered around the room which can be controlled with arduino`s.
Now I want to be able to do this from a central point, Now of course I need to have a good way to power and do communication between the arduino`s.
I wonder if it would be possible to have 1 single cable which would go from 1 arduino to the next containing 1 power cable, 1 ground and 2 serial cables rx and tx. and use each arduino node as an 'active' repeater so I can kind avoid the problems with having very long cables.
Since I have literally no idea about any of the stuff with cabling and how to best deal with this I would like some advice.
- how to best power these arduino`s
- wire to use. Can I use just standard wiring and then shield the 4 of them by hand?
- the powering of the lights is another problem but optimally I would like to power these from the same wire as the arduino.
I hope someone can enlighten me!