jsavage
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A quick case for Raspi display

Fri Sep 11, 2015 11:25 pm

So you have just just received your RaspberryPi Display and need a quick method for mounting it. One solution is under your nose... Just cut out a rectangular hole approx 103mm x 168mm. Cut a hole in the back for the power lead and the jobs done. Plenty of room around the display for switches push buttons or a raspi camera.
The display largely stays in place with the force of gravity but could easily be stuck down with impact adhesive or sealant. However, I would prefer a more reversible solution for attaching the display so if anyone can think of a simple way of using the four metal lugs /screw attachment points on the rear frame to secure it in place please let me know.
Image

James
Last edited by jsavage on Sat Sep 12, 2015 9:18 am, edited 1 time in total.

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kusti8
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Re: A quick case for Raspi display

Sat Sep 12, 2015 12:41 am

Very nice. ;)

The image won't show because the image tags only take a direct url ie http://website.com/image.jpg, not some embedded or redirect. You probably want to post it on Imgur, there you can get the direct url to pist it inline in your post.
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jsavage
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Re: A quick case for Raspi display

Sat Sep 12, 2015 9:20 am

[quote="kusti8"]Very nice. ;)
Tnx. I have edited to pull the image in from Imgur as suggested.

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killor
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Re: A quick case for Raspi display

Sat Sep 12, 2015 1:36 pm

jsavage wrote:So you have just just received your RaspberryPi Display and need a quick method for mounting it. One solution is under your nose... Just cut out a rectangular hole approx 103mm x 168mm. Cut a hole in the back for the power lead and the jobs done. Plenty of room around the display for switches push buttons or a raspi camera.
The display largely stays in place with the force of gravity but could easily be stuck down with impact adhesive or sealant. However, I would prefer a more reversible solution for attaching the display so if anyone can think of a simple way of using the four metal lugs /screw attachment points on the rear frame to secure it in place please let me know.
Image

James
Hi!!, it is a Good and fast solution!! :o

I want to make a case for the Touchscreen.
but I have no concrete measures.
Could you take the measurements and publish them?

I enclose a link to a PDF the measures I need to know ...

Thank you

https://drive.google.com/open?id=0B-16N ... E9tMEtnd3M
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jsavage
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Re: A quick case for Raspi display

Sat Sep 12, 2015 9:33 pm

ok so all these measurements are in mm
Overall width of the front of the display panel is 193
Overall height of the front of the display panel is 110

A:Between the screw holes 126
B:Between the screw holes 65.7
C:The width of the metal housing 166.5
D:The height of the metal housing 101
E:distance of the housing from the right hand edge of the front panel in your diagram 12
F:distance from the bottom edge of the front panel to the bottom of the metal housing 6
G:Distance from top of metal housing to the top edge of the panel 3
H:distance from the left edge of the panel to the metal housing 14.5
Note that the front panel to the left of the metal housing is initially 0.6mm thicker than the front panel to the right and top and bottom
I: distance from the left edge to the start of slightly thicker panel 4.5
Note also that you may need extra clearance where the ribbon cable comes through. The housing is slightly indented but this may not be quite enough.

I did not take the extra thickness into account for my cutout. My cutout for the box was 102.5 x 167

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killor
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Re: A quick case for Raspi display

Mon Sep 14, 2015 12:21 pm

Thank you very much :!:

Soon I will make a the prototype case ...
and I will upload photos...

Thanks again!
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jsavage
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Re: A quick case for Raspi display

Tue Sep 22, 2015 11:58 am

Attached is a extract from the mechanical diagram of the rear of the display which I have annotated with some additional measurements. I have hatched the area where the front panel is thicker.
Image

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Hove
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Re: A quick case for Raspi display

Tue Sep 22, 2015 12:13 pm

Here's my equivalent:
DSC00889.jpg
DSC00889.jpg (51.7 KiB) Viewed 3721 times
DSC00889.jpg
DSC00889.jpg (51.7 KiB) Viewed 3721 times
P.S. I have no idea why the pics are show as they are - they are just two 'attachments'
Attachments
DSC00890.jpg
DSC00890.jpg (56.63 KiB) Viewed 3721 times
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Woll
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Re: A quick case for Raspi display

Tue Sep 22, 2015 9:13 pm

Mr Hove, how do you know when to charge you battery pack?
Is there a way of knowing how much power is left using the Pi?
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Hove
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Re: A quick case for Raspi display

Wed Sep 23, 2015 5:46 am

Woll wrote:Mr Hove, how do you know when to charge you battery pack?
Is there a way of knowing how much power is left using the Pi?
At the moment, I have no means of telling when the batteries are running low and need recharging. I just don't run it for too long.

There are two batteries both 1A 3200mAh (Vinsic Tulip) - I'm using a RPi B+ so I probably could get a couple of hours or more, but I've not tried.
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Re: A quick case for Raspi display

Wed Sep 23, 2015 9:31 pm

Does anyone know how Mobile phones, cell phones know how much the charge is left in batteries?
Is it hardware built into the battery, or a software program?
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Hove
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Re: A quick case for Raspi display

Thu Sep 24, 2015 5:02 am

Woll wrote:Does anyone know how Mobile phones, cell phones know how much the charge is left in batteries?
Is it hardware built into the battery, or a software program?


I can't answer your question directly but...

The batteries I use have 5v regulators build in - that means it's not possible to monitor how 'full' they are outside the battery itself. The battery does have a set of LEDs showing the amount of charge left, and there is circuitry inside. So if you want to monitor charge level, you want the raw LiIon batteries and the regulator and a circuit between the battery and regulator measuring directly the voltage of the battery. 2 LiIon batteries (which is what's in my power bank) charge up to about 8.3V and discharge down to about 6V, so either an ADC measuring the voltage, or just a zener diode as a warning of some power threshold would do the job.
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rpdom
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Re: A quick case for Raspi display

Thu Sep 24, 2015 5:43 am

Woll wrote:Does anyone know how Mobile phones, cell phones know how much the charge is left in batteries?
Is it hardware built into the battery, or a software program?
Yes.
There is hardware built into the battery that reports back information to the software. Things like voltage, estimated remaining capacity in mAh, design capacity, last charge level and more stuff. There are extra connections on the battery for this. The software uses these to work out a percentage charge level.

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Re: A quick case for Raspi display

Thu Sep 24, 2015 8:49 pm

Thanks for the replies.I can't wait to build my Pi-let.
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Re: A quick case for Raspi display

Fri Sep 25, 2015 10:48 pm

Has anyone made a speaker setup with their touchscreens yet?
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killor
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Re: A quick case for Raspi display

Wed Sep 30, 2015 6:07 pm

Woll wrote:Has anyone made a speaker setup with their touchscreens yet?
OHH !!! It's a good idea!! :o
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Woll
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Re: A quick case for Raspi display

Wed Sep 30, 2015 6:31 pm

killor wrote:
Woll wrote:Has anyone made a speaker setup with their touchscreens yet?
OHH !!! It's a good idea!! :o
I think MagPi are planning on a feature in the future, going by an article in issue 38. I saw a thread where someone built a Retro Wood case. I was thinking of using his idea and making a Tablet that looks like a Retro TV complete with speakers to one side.

viewtopic.php?f=40&t=121434&p=819931#p819931
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Re: A quick case for Raspi display

Mon Oct 05, 2015 6:38 pm

I found this on adafruits website, about making a 10 inch portable Tablet / desktop using a different screen. But it could be adapted to use the official Raspberry Pi touchscreen.
It's got a battery and speaker in its design, making it completely portable. ;)

https://learn.adafruit.com/10-raspberry-pi-desktop
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