Touch Screen

Discussion about this major DATV Project. See https://wiki.batc.org.uk/The_Portsdown_Transmitter
M1BKF
Posts: 7
Joined: Thu Mar 09, 2017 12:42 am

Re: Touch Screen

Post by M1BKF » Tue Mar 14, 2017 7:32 pm

Still haven't figured out how to mount the LCD, but to protect the GPIO connector I got a GPIO extender cable - one of these: http://www.ebay.co.uk/itm/141354697688? ... EBIDX%3AIT

Edit by G8GKQ on 23 June 2017: This eBay sale has now finished. A similar item can be found by searching eBay for item number 201060767221.

G8GKQ
Site Admin
Posts: 2928
Joined: Sun Mar 22, 2009 1:21 pm

Re: Touch Screen

Post by G8GKQ » Tue Mar 14, 2017 10:01 pm

I have put M2 posts through the holes in the RPi and GPIO Extender, and then adjusted the length so that the LCD rests on the 4 posts. I have put small pieces of sticky rubber on top of the posts to absorb some of the shock.

This arrangement has survived 3 months of daily use while I have been developing and testing software.

Dave, G8GKQ

KenW6HHC
Posts: 309
Joined: Mon Jun 01, 2009 4:20 pm

Re: Touch Screen

Post by KenW6HHC » Wed Mar 15, 2017 2:40 pm

Thanks Dave G8GKQ,

I will start with that approach...it is simple and you have shown the M2 posts work adequately.

M1BKF explained he used a ribbon-cable to allow the LCD to be placed on a flat surface. I am still interested to learn if any other Portsdown users have come up with other approaches for mounting the LCD?

73...de Ken W6HHC

wb6kwt
Posts: 29
Joined: Wed Jun 29, 2016 1:16 pm

Re: Touch Screen

Post by wb6kwt » Wed Mar 15, 2017 4:11 pm

Hi Ken,
Of course I have the same issue but a couple of us are looking at having a bezel made, using a 3D printer. The bezel would have a lip on 3 sides, to slide the LCD into and there will be 4 post that will extend into the enclosure where we can use hot glue or something like that to keep the LCD from coming out of the enclosure, when turned upside down.

If anyone has already done something like this please post your info here.

Thanks,

Bob

g8gtz
Posts: 1776
Joined: Wed Apr 07, 2010 6:26 pm

Re: Touch Screen

Post by g8gtz » Wed Mar 15, 2017 4:56 pm

Hi

There's a thingyverse 3D printer design for the waveshare http://www.thingiverse.com/thing:1920486 and I did post a challenge to 3D printer owners in this thread http://www.batc.org.uk/forum/viewtopic.php?f=103&t=4821

Happy to put something on the wiki if get a design that works for Portsdown.

73

Noel G8GTZ

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