I've began to program a stand-alone cross platform application which allows you to control the Fusion Brain across the internet and from a variety of programming languages. Check out this forum post: http://www.mp3car.com/fusion-brain/1...-internet.html
Cant wait to see..... youve been very quiet! What was the name of the 12V - 5V stepdown that you use? Would this one be any good? http://www.current-logic.com/shop/in...roducts_id=190 What I like about it is that it has a total of 70amps. That could power just about everything and then some.
The Mean Well brand converters have been working well for me for over a year. I'm using their 50 watt, 5 volt supply. http://www.jameco.com/webapp/wcs/sto...0001_212549_-1
50 watts is definitely overkill in my project. But those current logic supplies look pretty nice with efficiencies over 95%, high current, and high temperature tolerance. I've never used them so I can't speak on reliability, but if that's the current you're going for, those look pretty good.
Also for you car, you have a dedicated connection? What are you using for it? Company, etc.
1 7 port USB Hub (1 amp)
1 Ethernet Switch (2 amps)
6 KVMP Switches (2.6 amps each)
So its only about 20 amps. With that being said I decided to lower it to a 12V - 5V 30 amp unit. So thats 10 amps to spare.
Let me ask, I am going by the amperage listed on the devices. Is that the max that they can use? Then technically I dont need more then 20 amps?
The USB hub consumption sounds about right assuming you're using every port.
I *HIGHLY* doubt those KVMP switches use 2.6 amps each. Are you basing that number off what it says on the power supply, or does the device state what it requires?
I would double check that with a multimeter. I would be surprised if they even consumed 1 amp. They do next to nothing except power some multiplexing circuit and some LEDs. I bet the LEDs use more power than the rest of the KVMP combined.
But, definitely, do double check before taking my assumption for fact.