Wireless VGA sender? (for projector) - HotUKDeals
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Wireless VGA sender? (for projector)

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[admin] 1d, 9m agoPosted 1 decade, 9 months ago
I've come into the possession of an old lcd projector so I was planning on using it to watch movies from my computer. However I don't want to carry my computer over to the projector all the time and it's too far to patch together VGA cables or something.

I know there's wireless a/v senders but they seem to only use scart cables or s-video. When I've used s-video or regular video out from my computer to the projector it didn't seem to have very good quality picture compared to using the VGA plug in.

So my deal request is for a wireless VGA sender/receiver that doesn't cost an arm and a leg! The ones I've found so far are like this http://grandtec.com/wirelessVGA.htm which is $799!
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[admin] 1d, 9m agoPosted 1 decade, 9 months ago
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#1
Would this in anyway satisfy your needs and i no its not wireless but it is a thought

http://www.maplin.co.uk/Module.aspx?ModuleNo=45472&criteria=vga&doy=7m3
#2
£119.99 Wireless Media Player A80CZ from maplin, in latest catalogue but discontinued on website (maybe you'll get a bargain!)

Doesn't mention much of the input connections though, but assumiong that they're with the graphics cards it should be VGA!
#3
Admin

Why don't you buy yourself media network player? Something like DLink DSM-320? It'll cost you roughly the same amount of money and is way bettter :)
[admin]#4
That only has s-video at the best Kommunist. I don't actually know the specs but just from hooking it from my laptop it appears that s-video is nowhere as good as using the VGA connector. I don't know if this would affect something like dvd playback? but I can notice when just viewing my computer desktop.

However, that brings up an interesting thought which I think you know about. I have an old Pentium 166mhz super slim Toshiba with broken keyboard and display but with VGA out... Would it be possible to turn it into some kind of streaming receiver? I could strap it on to the projector with an 802.11g card in the pcmcia slot...

I have no idea if that's possible though? Is 802.11g a wide enough bandwidth to handle VGA? I can stream video using VLC over 100mb ethernet right? So this is half the speed (54mb)...
#5
A couple of thoughts:
1. DSM-320 was just an example. Many of its competitors can handle YPrPb (Component) or RGB. Some (like Buffalo Linktheatre) can handle HDTV and some even feature DVI and HDMI connectors.
2. Streamers typically don't decode video signal - they rather decode data. In short, instead of video signal they receive file (DivX, for example), decode it and then display. Some of the cheaper ones (like Hauppauge MVP) require server side (software that runs on your PC) to re-encode video to MPEG2 on the fly but that's rarity.
3. There is no way you could get 54Mbps over WiFi. You'd be lucky if your will get 3MBps. And if someone will use microwave at that time, connection will be doomed. So is with senders, BTW.
4. As to uncompressed VGA video - do the math :) 32 bit p/pixel, 800x600, 60Hz (minimum). You'd need 878Mbps line. Even if all your network is Gigabit, can your Toshiba handle that?

What however you can do is to install MythTv server on your PC and use Toshiba as a client, running only MythTV frontend. How good is your Linux? :)


Forgot about important thing - if you are going to stream VGA over Ethernet - how do you plan to digitize it? VGA is analog signal.
#6
Yet another though - how about Reverse KVM over IP? These things allow you to have keyboard, video monitor and mouse (hence K.V.M.) at completely different place rather then next to your PC.
[admin]#7
Thanks for the help Kommunist!

Can you do Reverse KVM wireless? The wireless thing is a big thing for me as I want to mount the projector on the ceiling ultimately.

As for streaming the video to the Toshiba, I'm quite sure the P166 wouldn't be able to decode divx/xvid.. Looking at the requirements for MythTV I think it is severely under powered also :D

So I guess the best option is to use s-video if I'm going to be stuck on wireless connection. I'll have to play with it some more. I guess it would be ok with video but blurry with any computer apps.
#8
I never used R-KVM myself I have to admit. So my knowledge about these is purely theoretical :) The only limitation I see here is obviously bandwidth. Don't really know whether these things compress video and audio and how.
As to MythTV, friend of mine is using frontend only on MVP which got really slow processor inside. Also some people reported it working on Slug (which is really weird application for it) with some external hardware.

You can get component RGB/YUV to VGA box. There will be no degradation as VGA is RGB and YUV (if your source is YUV of course) is pretty much the same although in different colour space. RGB to VGA should go through without any conversion at all, IMHO. Something like this should do the job.
OK, so we know how to convert YUV/RGB to VGA now. But where we could get YUV/RGB from? Something like this guy is the answer.

I know this sound expensive - and I am very good of providing expensive solutions to simple problems! :D
[admin]#9
:D

My thought as I went to bed last night was buy a mac mini off eBay for ~£250 and use that. I could also use it as a file/music/movie server etc. also so that might be an excuse for getting one. In that case it would mean that I've done a full circle and not actually got anywhere :D Funny thing is these days that computing power is so cheap it's hard to find dedicated devices with good functionality for any less.

I'll keep looking around though and keep carrying my laptop over in the meantime.
#10
Why don't you just get Freecom Network Player for less than 100 quid, then add to it hard drive of your choice? This way you can get RGB/YUV picture and 5.1 sound via optical connector? You can store your music and video collection on it and if that wouldn't be sufficient, then just hook it to your network.
How does that sounds? :)

(I should be working for BMW dealership, really! Would you like to order these expensive leather seats, sir? And how about nice warming systems for those expensive leather seats, sir? And, BTW, you can get really nice cowhide cover for button that turns on warming system for those expensive leather seats, sir! And there is special M-engraving for the plate on that cowhide cover for button that turns on...." :D

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