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Old 24-09-2011, 05:30   #76
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Re: OpenCPN On Tablet Computer

I've pretty much completed installation of Windows 7 Home Premium (32 bit) and OpenCPN. I have purchased a Bluetooth mouse and a PCMCIA card with two RS232 ports. These peripherals will allow use of mouse and acquisition of gps and AIS data without use of the two USB ports. Now I need to turn my attention to mounting of the tablet to bulkhead at Nav Station. I have noted that when tablet is oriented in portrait mode, the text at the bottom of OpenCPN (eg, cursor position) is too small for me to read. This suggests the tablet should be oriented in landscape mode. I really don't like this for aesthetic reasons. Also, when oriented in portrait mode, the bottom 3 inches of the tablet is free of all ports which would allow some kind of slot to be created into which the tablet slips. The ideal mount would take advantage of slots in back which the dock uses to capture the tablet. Unfortunately this would be a bit complicated. Ideas and/or suggests would be appreciated.
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Old 25-09-2011, 07:20   #77
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Re: OpenCPN On Tablet Computer

I use a 3" strip of velcro for my G5 Grundig radio. Make its both stationary and portable. For your tablet you could do the same for sure as its far less weight then the radio and then make a nice teak frame for the tablet that allows for the cables. The frame can be attached to the bulkhead with velcro discs so its removeable too so you can play with the cables as needed. They can also be hidden with removable teak sections. The industrial strength stuff is really really strong.
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Old 25-09-2011, 16:02   #78
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Re: OpenCPN On Tablet Computer

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Originally Posted by sailias View Post
I use a 3" strip of velcro for my G5 Grundig radio. Make its both stationary and portable. For your tablet you could do the same for sure as its far less weight then the radio and then make a nice teak frame for the tablet that allows for the cables. The frame can be attached to the bulkhead with velcro discs so its removeable too so you can play with the cables as needed. They can also be hidden with removable teak sections. The industrial strength stuff is really really strong.
Thanks. As it turns out I was able to purchase a defective ST5112 docking station for the cost of the UPS postage. The dock has a nice latch that both supports and allows for easy dismounting. Another feature is a built-in rotation mechanism that would allow operation in either portrait or landscape mode. The only negative to that would be the amount of room that must be allocated on bulkhead. Since I may very well wish to operate in both modes from time to time I will try to allocated the space required.
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Old 25-10-2011, 14:52   #79
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Re: OpenCPN On Tablet Computer

To respond to the original question:

it looks like rhe convertible ClassmatePC by 2GOOPC is a good fit.

In addition to your requirements, it's ruggezied and with an active screen that (on paper) should be ok for sunlight readable.
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Old 30-10-2011, 14:30   #80
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Question Re: OpenCPN On Tablet Computer

Can you please add a link where I can find out more about this? Is that the Air display app for the Ipad? If so how does this work with a Windows program on the PC since Air Display seems to only work with the Mac?

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Originally Posted by r.fairman View Post
I run OpenCPN on a iPad 2 using a utility called display I run OpenCPN on a laptop in the cabin and display the screen on the IPad 2. All the touch screen features are relayed to Open CPN. A little slow but works ok. Connects via wifi

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Old 30-10-2011, 14:40   #81
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I now use an app called team viewer. Free from the app store works with windows A lot faster than iDisplay. Control and display any program on your on your iPad. I connect via an ad hoc network if I don't have Internet.

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Old 31-10-2011, 01:23   #82
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Re: OpenCPN On Tablet Computer

Welcome to the forum richardhc
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Old 31-10-2011, 02:26   #83
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Re: OpenCPN On Tablet Computer

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Originally Posted by r.fairman View Post
I now use an app called team viewer. Free from the app store works with windows A lot faster than iDisplay. Control and display any program on your on your iPad. I connect via an ad hoc network if I don't have Internet.

Regards

Richard
I use Parallels however for this task which is not free for the Mac but free for iPhone and iPad (useless if you have not Parallels at the Mac also). Testing TeamViewer also I found Parallels much smoother and with a better screen resolution than TeamViewer. Parallels is mainly used for virtually Windows and Ubuntu machines at the Mac.

Gerhard
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Old 31-10-2011, 04:31   #84
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Re: OpenCPN On Tablet Computer

We just launched our sailboat and have now had the opportunity to measure the current draw of the st5112 using an accurate digital battery monitor. Unfortunately, it draws more current than our Dell Inspiron E1505 laptop we hope to replace. The measurements were 4.4 Amps at 12.5 VDC (55.0 Watts) for the tablet vs 3.3 Amps at 12.5 VDC (41.3 Watts) for the laptop. In both cases, it was running OpenCPN at idle. We had really hoped it would draw less than the laptop.

The next task is to reorganize the displays at Nav station to accommodate the mounting of ST5112. As mentioned, above we acquired a mount which allows for easy removal and even rotation. It now appears that we will give up on rotation give space limitations on the bulkhead.

Edit: whoops, someone on another forum pointed out that a good part of the current draw measured for the tablet was probably going to charge the battery. I removed the battery and reran the test and got 1.45 Amps at 12.7 Volts (18.4 Watts). That's a whole lot better!
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Old 31-10-2011, 04:53   #85
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Re: OpenCPN On Tablet Computer

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Edit: whoops, someone on another forum pointed out that a good part of the current draw measured for the tablet was probably going to charge the battery. I removed the battery and reran the test and got 1.45 Amps at 12.7 Volts (18.4 Watts). That's a whole lot better!
Unfortunately you can't detach the battery of an iPad. If the battery is empty you have to reload it. I use therefore an USB connector with 1 Amps build in on the boat and connected to the boats 12 volts circuit. This connector has a 12 to 5 volts converter build-in.

Gerhard
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Old 01-11-2011, 12:09   #86
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Re: OpenCPN On Tablet Computer

Right, this is great! I have teamviewer working OK via the Internet (a bit slow with my connection) - BUT - I can't figure out how to connect via an ad hoc network even using the Teamviewer manual. After searching on Google and trying for several hours I've come to a http://www.cruisersforum.com/images/...s/banghead.gif
It is probably an issue with my Samsung Galaxy tablet. My Google adventures showed me that IPad has similar problems with ad hoc wifi connections when working with Windows 7 on the PC.

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Originally Posted by r.fairman View Post
I now use an app called team viewer. Free from the app store works with windows A lot faster than iDisplay. Control and display any program on your on your iPad. I connect via an ad hoc network if I don't have Internet.

Regards

Richard
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Old 01-11-2011, 22:23   #87
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Re: OpenCPN On Tablet Computer

I similar problems with adhoc network ipad to xp. I found the solution when i disconnected my ipad and my pc from the router wifi connection. Then i connected to pc to the adhoc I had created then the Ipad could see the pc adhoc and connect. It does work on xp perhaps others will have info on 7

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Old 08-11-2011, 18:04   #88
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Re: OpenCPN On Tablet Computer

Just today we managed to get the ST5112 mounted. It was a big job because we had to scrap the old panel in favor of a new one in order to rearrange everything to make room for the tablet PC. The mount was scavenged from a surplus dock and provides for rotation as shown in the following pics:
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Old 06-03-2012, 02:43   #89
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Re: OpenCPN On Tablet Computer

Sorry to dust off an old thread but I'm considering getting an ST5112 and have a few questions about using it as a cheap chart plotter:

- Now that you fellows have had some time with it, which OS is best? XP, 7 or Ubuntu? The unit I'm looking at comes with XP Pro pre installed.

- Anyone find a decent (low cost) waterproof case for these?
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Old 06-03-2012, 03:04   #90
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Re: OpenCPN On Tablet Computer

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Originally Posted by prof_mariner View Post
Sorry to dust off an old thread but I'm considering getting an ST5112 and have a few questions about using it as a cheap chart plotter:

- Now that you fellows have had some time with it, which OS is best? XP, 7 or Ubuntu? The unit I'm looking at comes with XP Pro pre installed.

- Anyone find a decent (low cost) waterproof case for these?
I have tried XP and 7. I much prefer 7 and it seems to install easily. I have mounted the tablet on a bulkhead at the nav station so have not had need of a waterproof case. I was able to modify a base station so as to preserve the rotation feature.

I do have some negative comments:
  • While underway, it is very hard to use the stylus as it jumps around
  • For unknown reasons the USB ports (for gps and AIS) drop out and I must unplug and re-plug them to get OpenCPN to read them again
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