xSyn
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Screen for Raspberry Pi

Mon Jul 15, 2019 1:26 pm

Hi. Noob question here.
I was wondering which screens can be able to connect to a Raspberry Pi (I’m using a Raspberry Pi 3 model A).

Can I get any machine with an lcd screen (like a TV, a photo framework, a laptop,…) and connect it to the raspberry?

Thank you.

W. H. Heydt
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Location: Vallejo, CA (US)

Re: Screen for Raspberry Pi

Mon Jul 15, 2019 4:35 pm

There are two output jacks for video on a Pi3A+. The main one is HDMI. That should work with any display that has either an HDMI or DVI-D input. The other is a composite video output that is combined with the analog audio output in a 4-pole 3.5mm jack.

In addition--and the specific topic for this sub-forum--is the RPF 7" touchscreen that connects through the DSI connector on the board. There are a variety of third party small displays, usually up to 3.5" that connect through the GPIO block, but for those you have to modify the boot control files, /boot/cmdline.txt and /boot/config.txt.

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HawaiianPi
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Re: Screen for Raspberry Pi

Mon Jul 15, 2019 5:39 pm

xSyn wrote:
Mon Jul 15, 2019 1:26 pm
Can I get any machine with an lcd screen (like a TV, a photo framework, a laptop,…) and connect it to the raspberry?
TV, yes, using either HDMI or composite video. Also DVI with a HDMI to DVI-D adapter (or VGA, but VGA adapters are often troublesome).

Assuming "photo framework" means a digital picture frame, it would depend on whether or not it had an external video input (probably not).

Laptop, tablet, smartphone can connect to a Pi using VNC remote desktop and the RealVNC viewer (VNC server is included with Raspbian). For CLI access you can use SSH. In this example screenshot from my Win10 PC, the upper-left window is a VNC remote desktop connection to my new Pi 4B, and the terminal is an SSH connection to my headless Creeper Pie Minecraft SMP server running on a 3B+ model.
vncssh.jpg
vncssh.jpg (41.71 KiB) Viewed 911 times
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xSyn
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Joined: Sat Apr 13, 2019 11:12 am

Re: Screen for Raspberry Pi

Tue Jul 16, 2019 10:45 am

Ahhhh thank you guys!

I'm sorry I was refering to the display one (not the HDMI one). So, if I were to remove the lcd screen from an iPad (for example), could I connect it to the rapsberry changing the boot file as you said? And that could work with any lcd screen?

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RaTTuS
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Location: North West UK

Re: Screen for Raspberry Pi

Tue Jul 16, 2019 12:44 pm

xSyn wrote:
Tue Jul 16, 2019 10:45 am
Ahhhh thank you guys!

I'm sorry I was refering to the display one (not the HDMI one). So, if I were to remove the lcd screen from an iPad (for example), could I connect it to the rapsberry changing the boot file as you said? And that could work with any lcd screen?
no , not easily - what is wrong with an HDMI display
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gkaiseril
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Re: Screen for Raspberry Pi

Tue Jul 16, 2019 5:05 pm

There is also the 7" lcd for the dsi.
f u cn rd ths, u cn gt a gd jb n cmptr prgrmmng.

aBUGSworstnightmare
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Re: Screen for Raspberry Pi

Tue Jul 16, 2019 7:28 pm

xSyn wrote:
Tue Jul 16, 2019 10:45 am
Ahhhh thank you guys!

I'm sorry I was refering to the display one (not the HDMI one). So, if I were to remove the lcd screen from an iPad (for example), could I connect it to the rapsberry changing the boot file as you said? And that could work with any lcd screen?
there is no simple way for connecting a random display ro a Pi.

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HermannSW
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Re: Screen for Raspberry Pi

Mon Jul 29, 2019 10:42 am

W. H. Heydt wrote:
Mon Jul 15, 2019 4:35 pm
There are a variety of third party small displays, usually up to 3.5" that connect through the GPIO block, but for those you have to modify the boot control files, /boot/cmdline.txt and /boot/config.txt.
I do use 7" Waveshare DPMI lcd, few lines added to /boot.config.txt needed only.
Advantages: bigger resolution (1024x600); cheaper
Disadvatages: raw display, no frame; only 18bit color; no touch

Besides the 18bit color restriction that came as a surprise to me last year, I like the display. Pure display is good enough in the provided stand, and my wireless USB keyboard has touch:
https://www.raspberrypi.org/forums/view ... 5&t=219214
Image
⇨https://stamm-wilbrandt.de/en/Raspberry_camera.html

https://github.com/Hermann-SW/Raspberry_v1_camera_global_external_shutter
https://gitlab.freedesktop.org/HermannSW/gst-template
https://github.com/Hermann-SW/fork-raspiraw
https://twitter.com/HermannSW

W. H. Heydt
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Location: Vallejo, CA (US)

Re: Screen for Raspberry Pi

Mon Jul 29, 2019 5:27 pm

HermannSW wrote:
Mon Jul 29, 2019 10:42 am
Besides the 18bit color restriction that came as a surprise to me last year, I like the display. Pure display is good enough in the provided stand, and my wireless USB keyboard has touch:
I have to admit that I'm quite curious about the camera you're using. Care to share the make and model?

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HermannSW
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Re: Screen for Raspberry Pi

Fri Aug 02, 2019 3:54 pm

W. H. Heydt wrote:
Mon Jul 29, 2019 5:27 pm
I have to admit that I'm quite curious about the camera you're using. Care to share the make and model?
One of those cheap (now <4$) v1 camera clones (not NoIR):
https://www.raspberrypi.org/forums/view ... 9#p1507039

with self added M12 mount:
https://www.raspberrypi.org/forums/view ... 7#p1279957

and lens taken from this NoIR v1 camera:
https://www.aliexpress.com/item/1000001803139.html

P.S:
Lately I like capturing with mode 1 because that is identical for v1 and v2 cameras.
And half size 960x540 preview fits perfectly on 7" 1024x600 DPMI LCD.
I like v1 camera, because unlike v2 camera it allows for global external shutter capturing, see signature.
⇨https://stamm-wilbrandt.de/en/Raspberry_camera.html

https://github.com/Hermann-SW/Raspberry_v1_camera_global_external_shutter
https://gitlab.freedesktop.org/HermannSW/gst-template
https://github.com/Hermann-SW/fork-raspiraw
https://twitter.com/HermannSW

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