[OT]: In search of an HDMI portable monitor for my BBB

Hi,

since the BBB offers an HDMI connector I am looking for
a portable HDMI monitor which works with the BBB and
offers audio.

Are there any recommendations (or the opposite: Monitors,
which better to leace alone...)?

Thank you very much in advance for any help!
Best regards,
mcc

PS: Best would be if available in germany... :slight_smile:

I've been trying to figure out how to use an android tablet over USB
as an I/O device. Since there are 7" tablets costing $40, it might be
a cool option.

I came up with two scenarios:

- a specialized Android app that displays a custom graphic overlay
and sends touchscreen events over USB, either in HID emulation or
using a custom USB protocol

- a general application that accepts graphics primitives, displays
them on the android screen and then registers and sends back
touchscreen events.

This would be a child's play if Android ran X protocol---it would be
just another remote display. But nooo, X is considered obsolete :frowning:

Does anyone have ideas how to approach this?

Hi Przemek,

thats a cool idea!!! :slight_smile:

Just to have aksed (and with NO experience/knowledge of this kind
as background from my side :slight_smile:
Is it possible to "root" such tablets only to put a small Linux
distro on it _with_ X?
Does this tablets have audio?

Best regards,
mcc

Przemek Klosowski <przemek.klosowski@gmail.com> [15-04-12 05:32]:

Hi,

since the BBB offers an HDMI connector I am looking for
a portable HDMI monitor which works with the BBB and
offers audio.

Are there any recommendations (or the opposite: Monitors,
which better to leace alone...)?

There are a number of boards available from China which run from 12
volts DC, and use a laptop display (or equivalent) as an output
device. They're probably about 30 euros in price, have an HDMI input,
(haven't tried mine yet) and have to be custom ordered for a
particular laptop panel. VGA or SVGA resolution would be about right,
Mine is running on a 640 x 480 7 inch display that I obtained locally,
and was also bought locally. (about 55 USD at a local surplus store
in the states...).

Some of them have audio, and are baseband monitors as well...

This might be what you'd need.

Harvey

Hi Harvey,

than ks for you reply!

Any names, brands, number...anything else than "China"
for which I can google for?

Best regards,
mcc

Harvey White <madyn@dragonworks.info> [15-04-12 06:44]:

There are a few free X servers for Android in Play store.I tried one
(don't remember name) with X tunnelled through ssh and it was usable.

j.

Hi Harvey,

than ks for you reply!

Any names, brands, number...anything else than "China"
for which I can google for?

Here's one

http://www.ebay.com/itm/HDMI-VGA-2AV-Remote-Lcd-controller-Board-VS-TY2662-V1-work-for-lots-of-LCD-panel-/180979602491?pt=LH_DefaultDomain_0&hash=item2a2339943b

and here's another

http://www.ebay.com/itm/TV-PC-HDMI-CVBS-RF-USB-AUDIO-driver-Board-For-DIY-Monitor-Televison-1920-1080/251869640598?_trksid=p2047675.c100005.m1851&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D1%26asc%3D30084%26meid%3D10249753d3a24e23bc3d46d17f4a0429%26pid%3D100005%26rk%3D2%26rkt%3D6%26sd%3D181044221632&rt=nc

The second one is more like the one I have.

I have no experience with either of these sellers, nor the top one.

I used HDMI to LCD Panel as a search term on ebay.

Harvey

Hi Harvey,

thanks for your reply!

...I was asking for the brand you are using...
Finding any hdmi on ebay is not a problem.

Thanks anyway! :slight_smile:
Best regards,
mcc

Harvey White <madyn@dragonworks.info> [15-04-12 15:52]:

Hi Harvey,

thanks for your reply!

...I was asking for the brand you are using...
Finding any hdmi on ebay is not a problem.

Ah, ok, well.....

In the great Chinese tradition, it doesn't have a brand name.

However: it is marked LA.M V29.P
and
LQ-RE01-150-116-L01
and
LQLAMV29P150600001098

Good luck on that one...

Harvey

you think they don’t work if we don’t own them?

So I took an Android 7" tablet (Azpen A700) that I got for $35 from
MicroCenter, installed X11 server from the Play Store:
https://play.google.com/store/apps/details?id=x.org.server&hl=en

and ran a test program (attached) talking to the X server on the tablet via
USB:

DISPLAY=192.168.1.11:0 wish testbuttons.tcl

It runs fine, although the mouse interaction is awkward (have to slide the
cursor to the target first before tapping to click).

testbuttons.tcl (446 Bytes)