touchscreen to laptop question

Submitted: Monday, Apr 14, 2008 at 22:10
ThreadID: 56647 Views:2400 Replies:5 FollowUps:4
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I'm trying to get away from having the laptop and Oziexplorer open in the front of the truck by setting up a touchscreen with VGA connection to the laptop.

My question is this: has anyone experienced decay of the signal from the laptop to the touch screen monitor through adding a long cord? The laptop would live most happily behind the seat. But the touchscreen is probably going on a console up on the passenger side. I figure I'll need about 2 metres of cable between laptop and touch screen. Has anyone else tried this and had problems with signal decay?

While I'm on the subject, does anyone have any feedback on any of the following touchscreen units?

The 8" one sold on e-bay through Skypro Site Link for about $212 with postage

The for $400 (yikes!)

The nameless 8" unit sold via ubuydirect on ebay Site Linkfor $286 with postage.

Any advice greatly appreciated. I take that one wants 800 x 600 native resolution. And the bigger the viewing angles the better. Anything else?
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Reply By: Member - Graham H (QLD) - Monday, Apr 14, 2008 at 23:01

Monday, Apr 14, 2008 at 23:01
I have a HAMi unit which came from Skypro and no there is no decay between the lappy and the unit even using a 2 metre cord.
You also need a USB cable to enable the touch screen.
One thing I found its a bit fiddly to change the default screen settings but can tell you how to do it.

The other thing is that you have to set your laptop screen to the same screen settings( like 16:9 or narrower) as the touch screen as otherwise it looks funny.
800 x 600 is the best resolution.
It is fine as a navigation screen but I found it flares a bit using it as a rear view camera screen.
Possibly because the camera is a high quality one.
Will try my caravan one which is a bit more ordianry and see what it looks like.
As for your links the dearest one has by far the best output of brightness being 400:1 against the other two being in the mid 200's. In saying that the Hami is bright enuf.
They are all Chinese made anyway.
Here are some pics of it installed The little screen is my car rear camera.

Feel free to mail me if u like


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AnswerID: 298575

Follow Up By: Member - Graham H (QLD) - Monday, Apr 14, 2008 at 23:03

Monday, Apr 14, 2008 at 23:03
Woops second pic here

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FollowupID: 564687

Follow Up By: Member - Graham H (QLD) - Monday, Apr 14, 2008 at 23:05

Monday, Apr 14, 2008 at 23:05
Wrog one try again

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Reply By: psproule - Tuesday, Apr 15, 2008 at 06:51

Tuesday, Apr 15, 2008 at 06:51
Ditch the laptop. Buy one of the ebay variants of the 4.3" GPS navigators for similar $$$ and mod it to run OZiexplorer CE. So long as they run the Samsung ARM CPU, an SD card and Windows CE 4 or later they can be tricked into running it. Just carry the laptop for updating track plots etc but run the navigator on the road.
AnswerID: 298597

Follow Up By: Mr Pointyhead - Tuesday, Apr 15, 2008 at 07:55

Tuesday, Apr 15, 2008 at 07:55
Have a look on the OziexplorerCE development page. Des has now released a version of Oziexplorer for the WinCE powered navigation units.

Also, a new development version got released with t totally new user interface last week.
FollowupID: 564707

Follow Up By: Peter 2 - Tuesday, Apr 29, 2008 at 18:29

Tuesday, Apr 29, 2008 at 18:29
I've done exactly that, bought a 4.3" GPS/Navigator on ebay.
Uses Win CE 4.2 for the OS, the turn by turn nav uses Route 66 which seems fine so far with red light, speed cams and thousands of POI's.
Will play movies, MP3 & 4, store photo's, uses a Nokia phone battery which is replaceable, can handle a rear view camera and Bluetooth Handsfree.
It comes complete with windscreen suction mount, 12v charger cable, 240v charger, audio/video leads, CD with software for PC, USB cable, headphones, 1 GB SD card with all required software, soft carry bag and a stylus pen for the touch screen.
I've installed the latest version of Oziexplorer CE and it works like a charm.
Very good value at $AU213 shipped
FollowupID: 567258

Reply By: Member - John and Val W (ACT) - Tuesday, Apr 15, 2008 at 09:17

Tuesday, Apr 15, 2008 at 09:17

There is no problem with signal loss over a few metres of cable. We have a touch screen running Ozi in a small computer behind the passenger seat. This works well. You will need to run a USB cable and the video cable, and depending on the monitor, a power cable. (Ours actually feeds power through the video cable, a strange arrangement, but it works.) With the USB connection, suggest run a cable to a convenient place up front and install a multi USB adapter there. That way you have easy access to plug in the gps, the monitor, a mouse, a keyboard, the card reader for the camera, a wireless link to talk to the household computer, etc etc.

We find the touch screen easier to use than the mouse when mobile, but a mouse is preferable when stationary.

We use 1024x768 resolution; the native resolution of the monitor is 800x600.

Mounting the monitor is an issue. It needs to be protected from shock, so mounting must not be rigid, yet must be secure. We finished up with a sling secured to the pod on top of Troopy's dash. The monitor hangs down in front of the radio in the centre ofthe dash - easily lifted out of the way, visible to both driver and passenger.

One disadvantage of central mounting is reflection off the screen. The screen should be angled down so that it doesn't reflect your companion's chest when driving towards the sun. Mounting from the roof near the rear vision mirror isn't really an option because of strong backlighting from the sky.

These aren't glamour shots, but may give some ideas:Image Could Not Be FoundImage Could Not Be Found


J and V
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AnswerID: 298624

Reply By: Member - Phil G (SA) - Tuesday, Apr 15, 2008 at 15:47

Tuesday, Apr 15, 2008 at 15:47
Thought of a 7 inch in-dash screen? Mine is not a touch screen, so we work it one the move with a cordless mouse. But you can get the in-dash ones now with touch screen and VGA input.

It hides away when not in use:

Then you pop it out for rear view camera:

And it takes the computer maps:

The computer folds away into a pocket:

I've used this setup for 2 years now, and I suits me better than many other setups in the past. It doesn't encroach on space, and when you're parked in the shopping centre carpark, its all hidden.

AnswerID: 298699

Reply By: Member - Pearl (VIC) - Tuesday, Apr 15, 2008 at 18:59

Tuesday, Apr 15, 2008 at 18:59
Thanks to everyone for all the really helpful feedback. That's what's really great about this site. If you have a question specific enough for people to get a grip on, there's a lot of experience out there and a lot of people kind enough to share it.

I feel like I oughta shout you all a round of virtual beers. (Not as satisfying as the real thing, but a lot safer to have all over your computer.)

AnswerID: 298732

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