Gadgeteer based 7" LCD with Capacitive Touch

I’ll think about that as I really want this to remain as per the license on Turnkey where you can use for commercial use but no derivatives and it must show my details etc.

If you are interested in something commercial with modifications etc, we can talk? Send me a PM with your email.

Thanks Dave! I’m trying to rush order a couple right now, but everyone’s at lunch. Big and shiny, here I come.

Alex

I just received an engineering change notification from Newhaven on the NHD-7.0-800480EF-ATXV#-CTP display that I design this board around and there is a change to the LED backlighting voltage and current. The current design works with the 16V 60mA LED and the new one is 9.6V at 160mA so I need to check the design to see if there are any changes to the components. This new display is higher wattage but the add advantage of higher brightness, up from 200cd/m2 to 350cd/m2 which is a bonus.

I’ll check this out in the next couple of days.

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Did you get a chance to check this out yet? I’ve got some boards showing up either tomorrow or Monday.

Thanks,
Alex

Sorry Alex, not yet as I have been out of town with no decent internet connection to grab the datasheets.

I’ll have a look over the next couple of nights.

I am pretty sure the existing design will work and we may only need to change the current sense resistor.

Quick update. I got in some test panels today and the 7" LCD with the Gadgeteer connections looks great. This is using my FPC connection though to a custom G400 board but it would work just as well with the Gadgeteer sockets from a G120 or G400 based board.

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That’s beautiful!

Cheers Ian,

When I get the enclosure for it in the next few weeks I’ll post some pictures of the final build. This is a lower cost NETMF version of my Android based logger. The Android one works great bit draws 8W whereas this NETMF G400 is only 2W so will run much cooler. Still got a bit of work on the software but I am chuffed with the 7" LCD and the ease with which I can port a lot of the Android code to it (the logic parts that is, the GUI is very different)

The Newhaven display looks even better in real life. It is a fraction of the price I pay for the one I use on the Android system.

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Yeah, have to say that is a really crisp looking display. And the mounting is just plain beautiful. Having seen your and Justin’s metal work, and Ian’s woodworking all in one day, I just feel so … inadequate.

I’ll let you into a secret on the panel work. :wink:

I use Frontpanel Express and in my case, I order via the German office but there is a US location too.

http://www.schaeffer-ag.de for Germany

http://www.frontpanelexpress.com for the USA

Software is free to download and it gives you prices in the software so you can check what each feature is going to cost.

Combined with 3D CAD software (for instance, Design Spark 3D is free) I can check fit and form before I design in their software. The LCD just slotted nicely into the 1mm deep cavity that I put in the rear to keep it in the right place.

With this you can design and build some really nice 1 off projects that don’t suffer from hand cut holes etc. :slight_smile:

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That’s really cool. How do they compare with Ponoko’s metal laser cutting service? Do you know?

I have Ponoko prime, but I have never had anything metal cut, just wood and acrylic…

edit: I guess Ponoko can just do 2D stuff. Front panel express looks like they can do more machining than just 2D… that is really cool.

It looks expensive for metal cutting as it starts from $180. FPE has no min price.

Front Panel Express can also do engraving with paint infill which is really great for labeling buttons, switches etc.

@ Dave McLaughlin - I just wanted to pass along a Thank You! I just built my own custom board for the New Haven 5" display. I used your LCD config settings. Seems to be working. It saved me a lot of time! Thanks so much for posting them!

:dance: :dance:

EDIT:
Well it was close. :wink:
I had to change the following from what you had in Replay #18.
Output Enabled is Fixed ----- True

Horizontal Sync Polarity ----- True
Vertical Sync Polarity --------- True

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Hi Steve,

The settings in reply #18 are for the 7" LCD. For the 5" one you need only change these but you seem to have it working with different sync settings. :think:


Display.OutputEnableIsFixed = true;
Display.OutputEnablePolarity = true;
Display.HorizontalSyncPolarity = false;
Display.VerticalSyncPolarity = false;
Display.PixelPolarity = true;

@ Dave McLaughlin - Strange. I tried your settings and it offset the image about 50 pixels to the right. For reference purposes and those who might pass this way in the future, here is the full settings list that is currently working for me:
Newhaven Display: NHD-5.0-800480TF-ATXL#-T


Display.Height = 480;
Display.Width = 800;
Display.OutputEnableIsFixed = true;
Display.OutputEnablePolarity = true;
Display.HorizontalSyncPolarity = true;
Display.VerticalSyncPolarity = true;
Display.PixelPolarity = false;

Display.HorizontalSyncPulseWidth = 48;
Display.HorizontalBackPorch = 88;
Display.HorizontalFrontPorch = 40;
Display.VerticalSyncPulseWidth = 3;
Display.VerticalBackPorch = 32;
Display.VerticalFrontPorch = 13;
Display.PixelClockRateKHz = 25000;

The only difference for me is the horizontal sync pulse width for me is set to 1.

Can you try that and see if it works?

I’ll also try out your settings today on the 5"

We should find somewhere to keep these settings so anyone can find them.

@ Dave McLaughlin -



seems to work the same.  I didn't see any difference.  Did you get a chance to give it a try?