nick8967
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50 pin cable TFT screen for Raspberry PI 3 B+

Tue Apr 23, 2019 3:03 pm

Hello,

I ordered a LCD TFT screen for a Raspberry Pi 3 B+, but it has 50pin cable, and that makes it incompatible for connecting it to the Raspberry Pi 3 B+. Is there a way to connect it with a plug/adapter to the Raspberry Pi 3B+ ?

Thank you

drgeoff
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Re: 50 pin cable TFT screen for Raspberry PI 3 B+

Tue Apr 23, 2019 3:33 pm

No.

You need an interface board which is specific to the actual display you have.

scotty101
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Re: 50 pin cable TFT screen for Raspberry PI 3 B+

Tue Apr 23, 2019 3:35 pm

Unlikely but you haven't share any information about the screen aside from the fact it has 50 pins. Try sharing a link to the product.

Next time check for compatibility before entering your payment details.
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davidcoton
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Re: 50 pin cable TFT screen for Raspberry PI 3 B+

Tue Apr 23, 2019 4:40 pm

Ask the seller? There is inadequate information on that link.

If they can't supply one (preferably at no cost, since they claim it is "for Raspberry Pi"), demand a refund and buy one with the proper interface.
If they argue, involve ebay to resolve the dispute. (You should file an issue immediately, then see what the seller will say and do).

Give negative feedback for misleading advertising.
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nick8967
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Re: 50 pin cable TFT screen for Raspberry PI 3 B+

Tue Apr 23, 2019 4:57 pm

If you look close in the photos it has number "50" on the cable pins. But since it says it is for Raspberry I thought it was ok. Obviously, I didn't meter how many pins has the Raspberry...

Andyroo
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Re: 50 pin cable TFT screen for Raspberry PI 3 B+

Tue Apr 23, 2019 5:01 pm

nick8967 wrote:
Tue Apr 23, 2019 4:57 pm
If you look close in the photos it has number "50" on the cable pins. But since it says it is for Raspberry I thought it was ok. Obviously, I didn't meter how many pins has the Raspberry...
The 50 is to tell you what PIN number is on the right - if you look at the listing it has a 1 on the left and the other writing just define the cable types and does not give enough to tell you about the interface card.

Follow Davidcottons advice and get your money back.
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klricks
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Re: 50 pin cable TFT screen for Raspberry PI 3 B+

Tue Apr 23, 2019 5:05 pm

nick8967 wrote:
Tue Apr 23, 2019 4:57 pm
If you look close in the photos it has number "50" on the cable pins. But since it says it is for Raspberry I thought it was ok. Obviously, I didn't meter how many pins has the Raspberry...
The number of pins does not confirm compatibility!
Unless specified otherwise my response is based on the latest and fully updated Raspbian Buster w/ Desktop OS.

nick8967
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Re: 50 pin cable TFT screen for Raspberry PI 3 B+

Tue Apr 23, 2019 5:12 pm

klricks wrote:
Tue Apr 23, 2019 5:05 pm
nick8967 wrote:
Tue Apr 23, 2019 4:57 pm
If you look close in the photos it has number "50" on the cable pins. But since it says it is for Raspberry I thought it was ok. Obviously, I didn't meter how many pins has the Raspberry...
The number of pins does not confirm compatibility!
Ok, I will fix it. Ebay is ok in such situations, I trust ebay many years now. Thank you...

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mahjongg
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Re: 50 pin cable TFT screen for Raspberry PI 3 B+

Tue Apr 23, 2019 5:29 pm

nick8967 wrote:
Tue Apr 23, 2019 4:57 pm
If you look close in the photos it has number "50" on the cable pins. But since it says it is for Raspberry I thought it was ok. Obviously, I didn't meter how many pins has the Raspberry...
You thought wrong, there is NO alternative to a real 7-inch touch screen that works with the raspberry PI's touch screen SDI interface.
Such sellers are "wishful thinkers" at best when making such claims (In other words, they are simply lying). :twisted:

also, the number of interconnects (cable pins) says absolutely nothing about which interface standard is used, or in which order these interconnects are arranged, and many other factors, so relying on counting the pins is patently absurd.

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Imperf3kt
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Re: 50 pin cable TFT screen for Raspberry PI 3 B+

Tue Apr 23, 2019 11:04 pm

mahjongg wrote:
Tue Apr 23, 2019 5:29 pm
nick8967 wrote:
Tue Apr 23, 2019 4:57 pm
If you look close in the photos it has number "50" on the cable pins. But since it says it is for Raspberry I thought it was ok. Obviously, I didn't meter how many pins has the Raspberry...
You thought wrong, there is NO alternative to a real 7-inch touch screen that works with the raspberry PI's touch screen SDI interface.
Actually, I have seen two devices in recent months that can use that interface.
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mahjongg
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Re: 50 pin cable TFT screen for Raspberry PI 3 B+

Tue Apr 23, 2019 11:15 pm

Then its time for the RPF to come with a new version of the display that uses encryption to lock out non RPF hardware, like they did with the camera module. :roll: :lol:

in any case random LCD panels from suspicious sellers are very unlikely to work with the PI's serial display port.

fanoush
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Re: 50 pin cable TFT screen for Raspberry PI 3 B+

Wed Apr 24, 2019 12:32 pm

Looks like it is just one part, check this for complete solution, the display and cable looks same
https://www.ebay.com/itm/7-inch-TFT-LCD ... 3814399007
So I guess it really won't work alone without the board.

fanoush
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Re: 50 pin cable TFT screen for Raspberry PI 3 B+

Wed Apr 24, 2019 12:38 pm

mahjongg wrote:
Tue Apr 23, 2019 11:15 pm
Then its time for the RPF to come with a new version of the display that uses encryption to lock out non RPF hardware, like they did with the camera module. :roll: :lol:
It is not clear this is a joke. I hope it really is but nowadays one never knows considering the V2 camera crypto.

BTW: here is one that specifically says DSI
https://www.ebay.com/itm/5-Inch-TFT-Cap ... 2579850629

EDIT:
I asked the seller whether it really needs no drivers and works with everything like the 7" Raspberry Pi Touch Display and the answer was yes.

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mahjongg
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Re: 50 pin cable TFT screen for Raspberry PI 3 B+

Fri Apr 26, 2019 5:28 pm

fanoush wrote:
Wed Apr 24, 2019 12:38 pm
mahjongg wrote:
Tue Apr 23, 2019 11:15 pm
Then its time for the RPF to come with a new version of the display that uses encryption to lock out non RPF hardware, like they did with the camera module. :roll: :lol:
It is not clear this is a joke. I hope it really is but nowadays one never knows considering the V2 camera crypto.
Its a joke, they could not retroactively introduce encryption anyway.
I do think that you should not buy Chinese copycat junk, and when you get problems with it, don't expect much help and sympathy from me.
The RPF has spent a fortune developing solutions like this, and if you choose to then buy a cheap copy the onus is on you.

W. H. Heydt
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Re: 50 pin cable TFT screen for Raspberry PI 3 B+

Sat Apr 27, 2019 1:33 am

mahjongg wrote:
Fri Apr 26, 2019 5:28 pm
fanoush wrote:
Wed Apr 24, 2019 12:38 pm
mahjongg wrote:
Tue Apr 23, 2019 11:15 pm
Then its time for the RPF to come with a new version of the display that uses encryption to lock out non RPF hardware, like they did with the camera module. :roll: :lol:
It is not clear this is a joke. I hope it really is but nowadays one never knows considering the V2 camera crypto.
Its a joke, they could not retroactively introduce encryption anyway.
I do think that you should not buy Chinese copycat junk, and when you get problems with it, don't expect much help and sympathy from me.
The RPF has spent a fortune developing solutions like this, and if you choose to then buy a cheap copy the onus is on you.
In that case, you'll probably be happy to know that I have 3 RPF 7" displays. What I would like would be able to get an upgrade replacement controller board for the one that is v1.0 unit (backlight has two settings...on and off).

The other "nice to have" would be if the RPT could follow up on Eben's musing about doing a 10" display as a follow on to the 7" unit. I could make good use of at least two of those...

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mahjongg
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Re: 50 pin cable TFT screen for Raspberry PI 3 B+

Sat Apr 27, 2019 1:59 pm

No comment:
even if I somehow had advance information about such products, (I don't) I would not reveal it, its against RPF policy pre-anouncing products, as you should well know by now. :mrgreen:

W. H. Heydt
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Re: 50 pin cable TFT screen for Raspberry PI 3 B+

Sat Apr 27, 2019 9:00 pm

mahjongg wrote:
Sat Apr 27, 2019 1:59 pm
No comment:
even if I somehow had advance information about such products, (I don't) I would not reveal it, its against RPF policy pre-anouncing products, as you should well know by now. :mrgreen:
And I wasn't asking for advance notice. Just wishful thinking that--lurking somewhere in the back rooms of the RPT---there is such a device in development. On the other hand, it would probably be pretty safe for the RPT to announce availability of bare controller boards for purchase for those that either have very early 7" touchscreens, or who have managed to damage a controller without damaging the display and just need a replacement.

Edit to add... One might presume that, given the way display panels have developed, a 10" RPF panel might have to follow a moderately likely upgrade to the VC4 that one might expect in the Pi4...and that it would be for Pi4 and following Pis only.

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