I want a tablet that it can hold between myself and other people with
a screen on each side showing the same thing.
I could buy a lilliput monitor and attach that but it out-weighs and
out-costs a tablet of sufficient capability to create what I need to
show. I've been looking for an hdmi input bare screen module but the
only thing I saw had another board and needed power case yada yada
...too big and too much bother and not as cheap as a stupid 7 inch
tablet.
I tried vnc from an android tablet server to a bbplaybook client and
video streaming wasn't fast enough over my wifi, plus there may not
even be an accessable router sometimes, and power is battery.
What would seem possible would be a cheap tablet to be the
slave-screen and some sort of usb connection, fast enough for video?
Has anyone gone this route already, what software did you use, did
video stream ok...
The bottom line of course is that it may not be a WiFi problem at
all...I stream video throughout my entire home, from an NAS box,
including to an SGII Captivate without problems. Thus WiFi speeds,
served over a LAN based network, should not be a problem for anyone
these days if using 802.11n/ or 802.11ac based router.
So, not having any specific info on your hardware/ video/ and software
combo, it's rather difficult to know where the bottleneck lies.
1) Can you stream/ display 1080p video from YouTube, NetFlix, Hulu, NBC,
ABC, or any other source, to your tablet without issue? If you can, then
WiFi over LAN is not the issue, nor is your hardware.
2) Tunneling into a home based network from outside your own LAN will
never give you the bandwidth necessary to serve high res video without
problems, regardless of how good your hardware is. Typical upload speeds
for consumer based internet access points are far too low in bandwidth
to support such a capability.
Cloud based services are actually your best shot at streaming high res
video across WAN. You really should consider a commercial service with
higher upload speeds available to your server.
3) The best solution to part of your quest is indeed a dual monitor
configuration of some sort, as I personally know of no dual-faced
display hardware device available for your purpose.
This would incur additional hardware resources and expense to handle
streaming traffic, decode, and output to HDMI and/ or splitter ->
monitor(s). Feasibly one could take most any WiFi extender, laptop, or
full USB tablet and create a singular access point from which to connect
multiple displays. There are indeed tablets available on the market
today that do fully support USB, and added Bluetooth services, limited
only by the scope of the current operating system in use. Feature sets
do vary dramatically by both vendor and price...
4) Serving network streams via WiFi would easily and cheaply satisfy
most of your requirements, but the streams would not be in-sync with
each other regardless of all other factors. Propagation delays may or
may not be problematic...not sure if that really matters.
4) Added notes on hardware:
An Arm v7 1GHz Dual Core processor, for example, is actually not fast
enough for full high res video streaming, factoring in display
capability, native screen resolution and a host of other factors
including optimized codecs, and player. So, depending upon your own
hardware capability, you might need to consider converting native video
sources to a much more mobile device friendly format. This assumes of
course one is willing to spend the added time necessary to pre-process
the video content.
Although I'm quite sure this is not really an answer to your current
dilemma, perhaps something said will prove helpful...
