Something I don't seem to understand is how exactly they go together. I understand what you're saying. But do you strip the wires back of each to screen wire and join them together? But then even if you do that you don't have anything to plug in. Someone said on the forum "A lot of those screens are designed for in car use so they run off 12 volts, so the easiest thing to do is get your screens and work out how much current they need and buy a suitable 12 volt power supply. You might be able to find an old laptop supply that will do the job or you can buy something like this https://www.rapidonline.com/powerpax-sw4380-desktop-power-supply-unit-60w-12v-dc-5a-c14-to-2-5mm-554671. Then you just need a suitable socket on the case to plug it in and run separate cables from the socket to the screens, the Arduino can also be powered by 12 volts via its DC jack so you can power that off the same supply removing the need for a separate 5 volt supply"
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