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xeonpeacemaker
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Duel video output

Wed Oct 29, 2014 9:00 pm

Hello,
Can i have 2 separate video outputs on the B+?
“Ford!" he said, "there's an infinite number of monkeys outside who want to talk to us about this script for Hamlet they've worked out.”
― Douglas Adams, The Hitchhiker's Guide to the Galaxy

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mahjongg
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Re: Duel video output

Thu Oct 30, 2014 12:23 am

Actually, and perhaps surprisingly, yes you can!
You can use the HDMI/DVI-D port for one monitor, and then use Gert's VGA adapter for a VGA monitor, both screens act independently from each other, so can display different contents.

http://www.raspberrypi.org/gert-vga-adapter/

In the future the Raspberry PI Foundation will bring out a DSI (display serial interface) LCD panel, that can also be used independently from the HDMI interface.

drgeoff
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Re: Duel video output

Thu Oct 30, 2014 10:34 am

xeonpeacemaker wrote:Hello,
Can i have 2 separate video outputs on the B+?
If you mean HDMI and composite simultaneously, no.

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xeonpeacemaker
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Re: Duel video output

Thu Oct 30, 2014 11:56 am

drgeoff wrote:
xeonpeacemaker wrote:Hello,
Can i have 2 separate video outputs on the B+?
If you mean HDMI and composite simultaneously, no.
I meant the HDMI and the ribbon lcd connection thats on the board
“Ford!" he said, "there's an infinite number of monkeys outside who want to talk to us about this script for Hamlet they've worked out.”
― Douglas Adams, The Hitchhiker's Guide to the Galaxy

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Burngate
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Re: Duel video output

Thu Oct 30, 2014 12:28 pm

In that case, not yet.
Some time in the near future, an official DSI LCD will be released, then you can have dueling screens - pistols at 20 paces ... oh, you meant dual. ;)

Joe Schmoe
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Re: Duel video output

Thu Oct 30, 2014 2:41 pm

mahjongg wrote:Actually, and perhaps surprisingly, yes you can!
You can use the HDMI/DVI-D port for one monitor, and then use Gert's VGA adapter for a VGA monitor, both screens act independently from each other, so can display different contents.

http://www.raspberrypi.org/gert-vga-adapter/

In the future the Raspberry PI Foundation will bring out a DSI (display serial interface) LCD panel, that can also be used independently from the HDMI interface.
Yes. If only the Gert VGA board actually existed (as a consumer product)…

P.S. Re: the DSI/LCD screen. Even though the Foundation hasn't yet released the so-called "official" screen, it is still the case (AIUI) that you can find and buy something on your own and hook it up and it will work.

Which is, not entirely coincidentally, exactly the same as the situation with the Gert VGA board. It's not (yet) available as a consumer product, but if you can somehow get hold of one, it will work.
And some folks need to stop being fanboys and see the forest behind the trees.

(One of the best lines I've seen on this board lately)

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Gert van Loo
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Re: Duel video output

Thu Oct 30, 2014 4:40 pm

Yes. If only the Gert VGA board actually existed (as a consumer product)…
Just give it time.

Joe Schmoe
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Re: Duel video output

Thu Oct 30, 2014 6:03 pm

Gert van Loo wrote:
Yes. If only the Gert VGA board actually existed (as a consumer product)…
Just give it time.
Thank you. I am glad to hear that.

(I.e., I would really like to have one to play with, but I don't trust my soldering skills)
And some folks need to stop being fanboys and see the forest behind the trees.

(One of the best lines I've seen on this board lately)

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xeonpeacemaker
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Re: Duel video output

Fri Oct 31, 2014 6:19 am

Off topic, can i get 2 or more Pi's to talk to each-other via Ethernet/usb?
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Re: Duel video output

Fri Oct 31, 2014 6:42 am

xeonpeacemaker wrote:Off topic, can i get 2 or more Pi's to talk to each-other via Ethernet/usb?
http://www.raspberrypi.org/documentatio ... /README.md
""understanding the theoretical, but not always the end goal""

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Re: Duel video output

Fri Oct 31, 2014 8:21 am

xeonpeacemaker wrote:Off topic, can i get 2 or more Pi's to talk to each-other via Ethernet/usb?
Don't even bother with looking at USB, the easiest way is with TCP/IP (or UDP/IP). Search the forum for "MQTT" or "Mosquitto", MQTT is the protocol for the Internet of Things and Mosquitto is the broker that makes MQTT happen.
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Jim JKla
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Re: Duel video output

Fri Oct 31, 2014 8:32 am

There is a way to have multiple screens under the control of one RPi but you also need a RPi for each screen.

You can use PiWall and theoretically if you are prepared to accept delays there's a posibility of making the screens wireless and then use model "A" RPi's and nano Wifi. You understand this is theoretical and the the communication delays may make the system unuseable but it is theoreticaly possible.

It depends on wether your aim is for a multiscreen system per say or just trying to get one RPi to do a lot.. ;)
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If you find a solution please post it in the wiki the forum dies too quick

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