Topics

New Case for RPi, DRAWS and 7 inch LCD - Looking for testers

steve@...
 

Hello,

VE7KGV and I designed a case to allow use of the DRAWS Hat with a Raspberry Pi and 7 inch LCD but have no way to test it because we haven't gotten a DRAWS board to play with (Hopefully in the next couple of weeks).  As a result we've only been able to design this from the spec sheet.  The full design is on Thingiverse here https://www.thingiverse.com/thing:3387482

There are pictures there as well.

Would love any input you have on how to improve this design.

Thanks,

Steve and Kevin
VE7GOY/VE7KGV

Daniel Tickell
 

I am happy to print one of these up in the next day or so and give feedback :)


Daniel (KM6MZM)

On Mon, Jan 28, 2019 at 9:19 AM <steve@...> wrote:
Hello,

VE7KGV and I designed a case to allow use of the DRAWS Hat with a Raspberry Pi and 7 inch LCD but have no way to test it because we haven't gotten a DRAWS board to play with (Hopefully in the next couple of weeks).  As a result we've only been able to design this from the spec sheet.  The full design is on Thingiverse here https://www.thingiverse.com/thing:3387482

There are pictures there as well.

Would love any input you have on how to improve this design.

Thanks,

Steve and Kevin
VE7GOY/VE7KGV

steve@...
 

Awesome! Thank you!

Kenny Richards
 

Steve,

Could you forward the link to which LCD display you are using?

Thanks,

Kenny
KU7M

steve@...
 
Edited

This is using the official Raspberry Pi 7" LCD touchscreen.  https://www.raspberrypi.org/products/raspberry-pi-touch-display/

 

Will you offer the case for purchase?
Alex
WB1GNL




Sent from my Samsung Galaxy , an AT&T LTE smartphone

-------- Original message --------
From: steve@...
Date: 1/28/19 11:16 AM (GMT-05:00)
To: main@nw-digital-radio.groups.io
Subject: [nw-digital-radio] New Case for RPi, DRAWS and 7 inch LCD - Looking for testers

Hello,

VE7KGV and I designed a case to allow use of the DRAWS Hat with a Raspberry Pi and 7 inch LCD but have no way to test it because we haven't gotten a DRAWS board to play with (Hopefully in the next couple of weeks).  As a result we've only been able to design this from the spec sheet.  The full design is on Thingiverse here https://www.thingiverse.com/thing:3387482

There are pictures there as well.

Would love any input you have on how to improve this design.

Thanks,

Steve and Kevin
VE7GOY/VE7KGV

Kenny Richards
 

Thanks!

Jack Spitznagel
 

I really like your concept here. It would answer some of the issues that came up for me while using the SmartiPi Touch Case as far as access to microSD card and perhaps the HDMI port… I could not tell if you had left access there.

 

Are you are planning on using a header cable for the GPIO? Could that leave the bus more open to RFI in field use.

 

Folks playing with DRAWS seem to have have found it better to use the buck regulator on the DRAWS board to power the RPi . All you need is a male to male micro USB power jumper like you can get from Drone vendors to route from DRAWS to the RPi. This would eliminate the need for a separate 5V supply. I supply my rig and the DRAWS from the same power source.

 

The RPi touch screen is nice but issues that came up for many who tried it:

  1. Xastir, wsjt-x and fldigi all have screen configuration menus that do not allow for resizing for this display. In some cases (particularly wsjt-x) this makes configuration and use difficult because parts of the lower windows are inaccessible.
  2. Typing into the screen is very difficult, making a wireless keyboard a must in my opinion.

 

BTW – all the DRAWS discussions are in the UDRC subgroup – Lots of great info there.

Jack – KD4IZ

 

From: main@nw-digital-radio.groups.io <main@nw-digital-radio.groups.io> On Behalf Of steve@...
Sent: Monday, January 28, 2019 11:16
To: main@nw-digital-radio.groups.io
Subject: [nw-digital-radio] New Case for RPi, DRAWS and 7 inch LCD - Looking for testers

 

Hello,

VE7KGV and I designed a case to allow use of the DRAWS Hat with a Raspberry Pi and 7 inch LCD but have no way to test it because we haven't gotten a DRAWS board to play with (Hopefully in the next couple of weeks).  As a result we've only been able to design this from the spec sheet.  The full design is on Thingiverse here https://www.thingiverse.com/thing:3387482

There are pictures there as well.

Would love any input you have on how to improve this design.

Thanks,

Steve and Kevin
VE7GOY/VE7KGV

Ed Bloom, KD9FRQ
 

Nice looking case.
 
Do you have any experience adding acrylic rods so the TX LEDs can be see better with the case on?
 
Ed Bloom
ewbloom@...
Sent from Webmail access
 
 

From: steve <steve@...>
To: main <main@nw-digital-radio.groups.io>
Sent: Mon, Jan 28, 2019 11:19 am
Subject: [nw-digital-radio] New Case for RPi, DRAWS and 7 inch LCD - Looking for testers

Hello,

VE7KGV and I designed a case to allow use of the DRAWS Hat with a Raspberry Pi and 7 inch LCD but have no way to test it because we haven't gotten a DRAWS board to play with (Hopefully in the next couple of weeks).  As a result we've only been able to design this from the spec sheet.  The full design is on Thingiverse here https://www.thingiverse.com/thing:3387482

There are pictures there as well.

Would love any input you have on how to improve this design.

Thanks,

Steve and Kevin
VE7GOY/VE7KGV

Fred Meier
 

Steve and Kevin

Do you want to try it with my DRAWS? I am an early supporter in that I invest money, but I have not had time to even open the package.

We can trade back once yours arrive?

Fred VE7FMN

 

From: main@nw-digital-radio.groups.io <main@nw-digital-radio.groups.io> On Behalf Of steve@...
Sent: Monday, January 28, 2019 8:16 AM
To: main@nw-digital-radio.groups.io
Subject: [nw-digital-radio] New Case for RPi, DRAWS and 7 inch LCD - Looking for testers

 

Hello,

VE7KGV and I designed a case to allow use of the DRAWS Hat with a Raspberry Pi and 7 inch LCD but have no way to test it because we haven't gotten a DRAWS board to play with (Hopefully in the next couple of weeks).  As a result we've only been able to design this from the spec sheet.  The full design is on Thingiverse here https://www.thingiverse.com/thing:3387482

There are pictures there as well.

Would love any input you have on how to improve this design.

Thanks,

Steve and Kevin
VE7GOY/VE7KGV

steve@...
 

Hi Fred,

That would be fantastic!!!

We're on the list for the next shipment but that looks like it got delayed.  Do you want to email me privately to arrange something?

Steve

steve@...
 

Hi Ed,

No....but I don't see why it couldn't be done.  Let me do some research.

Steve

steve@...
 

Hi Jack,

Great comments!

The design does grant access to the HDMI, speaker and power jacks on the side but currently doesn't allow easy access to the SD card slot.  Working on a modification to allow that now.

Yes we had planned on using a header cable and do for the TNCs.  We've found (so far) that the Pi's LCD cable is more susceptible to RFi than the GPIO cable but that is from experience with TNC hats and not the DRAWS.  We've been able to get past the RFi on the LCD cable by putting a small ferrite core on it. 

Our intent is to use the regulator on the DRAWS board rather than the buck regulator separately but as we've got no DRAWS board and we wanted to make the design somewhat independent of the HAT you choose we've designed in the ability for either approach.

The 7 inch LCD is indeed small for a lot of different use cases.  In fact I had intended to use it at WFD but found it too much of a strain on my eyes.  Something that we will have to think about going forward.

Steve

steve@...
 

Hi Alexander,

Although we hadn't thought of doing them for purchase we can certainly do a few as needed.  Ultimately though you might be able to find somebody locally to print one up for you from the files on Thingiverse.  There are several companies that will do the print and send it to you as well. For example : https://www.3dhubs.com/3d-printing/

ve7fmn
 

You can find my email address on my web page www.ve7fmn.ca under contacts.

Yes I can help you and am eager to.

Cheers, Fred

 

From: main@nw-digital-radio.groups.io <main@nw-digital-radio.groups.io> On Behalf Of steve@...
Sent: Tuesday, January 29, 2019 7:16 AM
To: main@nw-digital-radio.groups.io
Subject: Re: [nw-digital-radio] New Case for RPi, DRAWS and 7 inch LCD - Looking for testers

 

Hi Fred,

That would be fantastic!!!

We're on the list for the next shipment but that looks like it got delayed.  Do you want to email me privately to arrange something?

Steve

Douglas KI7LIK
 

Looks great, now i'm thinking of how to add a battery to it.

Dave Phelps
 

Can't say anything about the case as I haven't even received a board yet, but I can chime in on he 7" raspi screen.  
It's not big enough to do any serious work on.  A lot of programs with GUIs can't resize that small, and even if you were running it mostly headless and coming in off a vnc with a full size screen, that 7" screen won't allow you to resize your window to a better resolution.   I ended up discarding it.  That was my experience anyway.
Command line users, of course, won't notice a thing.

Basil Gunn
 

I am in agreement with you Dave.

The 7" Raspberry Pi 800 x 480 resolution touchscreen screens are much
too small for most (any) apps to work without a great deal of
frustration.

The 7" Sunfounder 1024 x 600 resolution displays are marginally better
but still are not that great a user experience.

I find the 10" Sunfounder 1280 x 800 displays work pretty well.

Just my opinion of course.

I would be interested to find out what application people are
using that they find the RPi 7" 800 x 480 touchscreen works well.
I do not use any of my 7" displays any more.

You can find the Sunfounder displays on Amazon with or without
touchscreen.

/Basil n7nix

Dave Phelps <dave.phelps@...> writes:

Can't say anything about the case as I haven't even received a board
yet, but I can chime in on he 7" raspi screen.

It's not big enough to do any serious work on.

A lot of programs with GUIs can't resize that
small, and even if you were running it mostly headless and coming in
off a vnc with a full size screen, that 7" screen won't allow you to
resize your window to a better resolution. I ended up discarding
it. That was my experience anyway. Command line users, of course,
won't notice a thing.

Jack Spitznagel
 

Hi Basil and Dave,

@Dave, your comments on the RPi screen are pretty much spot on. I had a
spare one in a "SmartiPi" case I have been using to test an early adopter
DRAWS board during the betas. I posted my kitbash setup about a month ago or
so. It serves as my backup and porta-mobile digi right now and will work
adequately in the field with FLDigi. I use my workstation and laptop for
Winlink - so have not tried to set up those apps and cannot comment beyond
the notes below.
@Basil- re the 7" 800x480 RPi display - you want to have a (wireless)
keyboard with a mouse/pad!
1. Needs to be used in the shade.
2. Once RPi Stretch+Compass is set for "small screen" most stock RPi/Stretch
apps work adequately - IF you do not have vision issues.
3. Xastir is usable on the RPi screen once in fullscreen mode. Aspect ratio
makes for a weird map field (too short in some magnifications).
4. FLDigi/FLRig needed to be resized a little, but also will work in a
trouble-free manner once set up.
OTOH wsjt-x has configuration menus where critical that are inaccessible.
You can set them up if you know the default states and you know the order
that "Tab-bing" through setup selections proceeds, but it is a PITA.

Sunfounder 10"/Pi combo Questions:
Does the screen run off the buck regulator in the DRAWS card?
I originally passed on it because the display unit appeared to require its
own PS unit - the display kit with the acrylic stand and integral mounting
stuff seems to have solved that issue.
I need to eliminate the need for all but one PS (or Bioenno battery) as I
did with the early adopter kit.

Thanks for your comments-

KD4IZ
Jack Spitznagel
FM19oo

-----Original Message-----
From: main@nw-digital-radio.groups.io <main@nw-digital-radio.groups.io> On
Behalf Of Basil Gunn
Sent: Sunday, February 24, 2019 11:10
To: main@nw-digital-radio.groups.io
Subject: Re: [nw-digital-radio] New Case for RPi, DRAWS and 7 inch LCD -
Looking for testers


I am in agreement with you Dave.

The 7" Raspberry Pi 800 x 480 resolution touchscreen screens are much too
small for most (any) apps to work without a great deal of frustration.

The 7" Sunfounder 1024 x 600 resolution displays are marginally better but
still are not that great a user experience.

I find the 10" Sunfounder 1280 x 800 displays work pretty well.

Just my opinion of course.

I would be interested to find out what application people are using that
they find the RPi 7" 800 x 480 touchscreen works well.
I do not use any of my 7" displays any more.

You can find the Sunfounder displays on Amazon with or without touchscreen.

/Basil n7nix

Dave Phelps <dave.phelps@...> writes:

Can't say anything about the case as I haven't even received a board
yet, but I can chime in on he 7" raspi screen.

It's not big enough to do any serious work on.

A lot of programs with GUIs can't resize that small, and even if you
were running it mostly headless and coming in off a vnc with a full
size screen, that 7" screen won't allow you to resize your window to a
better resolution. I ended up discarding it. That was my experience
anyway. Command line users, of course, won't notice a thing.

Willie - N8WP
 

I recently got a new printer. A Prusa i3 mk3. I am working on learn Focus 360, I could use some assistance from more experienced modelers and printers.

Thanks, 

Willie 
N8WP 


On Sun, Feb 24, 2019, 17:40 Jack Spitznagel <kd4iz@...> wrote:
Hi Basil and Dave,

@Dave, your comments on the RPi screen are pretty much spot on. I had a
spare one in a "SmartiPi" case I have been using to test an early adopter
DRAWS board during the betas. I posted my kitbash setup about a month ago or
so. It serves as my backup and porta-mobile digi right now and will work
adequately in the field with FLDigi. I use my workstation and laptop for
Winlink - so have not tried to set up those apps and cannot comment beyond
the notes below.

@Basil - re the 7" 800x480 RPi display - you want to have a (wireless)
keyboard with a mouse/pad!
1. Needs to be used in the shade.
2. Once RPi Stretch+Compass is set for "small screen" most stock RPi/Stretch
apps work adequately - IF you do not have vision issues.
3. Xastir is usable on the RPi screen once in fullscreen mode. Aspect ratio
makes for a weird map field (too short in some magnifications).
4. FLDigi/FLRig needed to be resized a little, but also will work in a
trouble-free manner once set up.
OTOH wsjt-x has configuration menus where critical that are inaccessible.
You can set them up if you know the default states and you know the order
that "Tab-bing" through setup selections proceeds, but it is a PITA.

Sunfounder 10"/Pi combo Questions:
Does the screen run off the buck regulator in the DRAWS card?
I originally passed on it because the display unit appeared to require its
own PS unit - the display kit with the acrylic stand and integral mounting
stuff seems to have solved that issue.
I need to eliminate the need for all but one PS (or Bioenno battery) as I
did with the early adopter kit.

Thanks for your comments-

KD4IZ
Jack Spitznagel
FM19oo



-----Original Message-----
From: main@nw-digital-radio.groups.io <main@nw-digital-radio.groups.io> On
Behalf Of Basil Gunn
Sent: Sunday, February 24, 2019 11:10
To: main@nw-digital-radio.groups.io
Subject: Re: [nw-digital-radio] New Case for RPi, DRAWS and 7 inch LCD -
Looking for testers


I am in  agreement with you Dave.

The 7" Raspberry Pi 800 x 480 resolution touchscreen screens are much too
small for most (any) apps to work without a great deal of frustration.

The 7" Sunfounder 1024 x 600 resolution displays are marginally better but
still are not that great a user experience.

I find the 10" Sunfounder 1280 x 800 displays work pretty well.

Just my opinion of course.

I would be interested to find out what application people are using that
they find the RPi 7" 800 x 480 touchscreen works well.
I do not use any of my 7" displays any more.

You can find the Sunfounder displays on Amazon with or without touchscreen.

/Basil n7nix

Dave Phelps <dave.phelps@...> writes:

> Can't say anything about the case as I haven't even received a board
> yet, but I can chime in on he 7" raspi screen.
>
> It's not big enough to do any serious work on.
>
> A lot of programs with GUIs can't resize that small, and even if you
> were running it mostly headless and coming in off a vnc with a full
> size screen, that 7" screen won't allow you to resize your window to a
> better resolution. I ended up discarding it. That was my experience
> anyway.  Command line users, of course, won't notice a thing.







--
Willie Peloquin

“Twenty years from now you will be more disappointed by the things you didn’t do than by the ones you did. So throw off the bowlines. Sail away from the safe harbor. Catch the trade winds in your sails. Explore. Dream. Discover.”- Mark Twain