3,5 inch LCD screen install on Pi Star?

Help with Raspberry Pi Foundation Boards (Raspberry Pi, Pi Zero, Pi Zero W, Pi A, Pi B, Pi B+, Pi2 B, Pi3 B, Pi 3 B+)
Post Reply
pd1loi
Posts: 13
Joined: Wed May 02, 2018 7:43 am

3,5 inch LCD screen install on Pi Star?

Post by pd1loi » Fri Sep 13, 2019 8:24 am

HTB1WO12aijrK1RjSsplq6xHmVXaU.jpg
HTB1WO12aijrK1RjSsplq6xHmVXaU.jpg (153.49 KiB) Viewed 350 times
Is it possible to make this standard 3.5 inch LCD screen also work on Pi-star? Now I see only white clear image without any info.

AF6VN
Posts: 228
Joined: Fri Jul 20, 2018 1:15 am

Re: 3,5 inch LCD screen install on Pi Star?

Post by AF6VN » Fri Sep 13, 2019 3:43 pm

Don't know about your hardware, but it sure couldn't be used on my system... My DV-Mega board plugs into/and covers the same pins this display looks to use. (I'm presuming it works on a 3B/3B+ even though the display doesn't use /all/ the available pins).

--
AF6VN
Dennis L Bieber

KE7FNS
Posts: 290
Joined: Wed Apr 17, 2019 11:11 pm

Re: 3,5 inch LCD screen install on Pi Star?

Post by KE7FNS » Fri Sep 13, 2019 7:59 pm

pd1loi wrote:
Fri Sep 13, 2019 8:24 am
Is it possible to make this standard 3.5 inch LCD screen also work on Pi-star? Now I see only white clear image without any info.
Yes, but I'm afraid it won't display what you are thinking it will. In other words, it won't display the same info or work as if it is a Nextion display. It will work just as if you plugged your RPi into a monitor(plus also act as a touch input screen), and then if you wanted a GUI you'd have to install all the packages needed to convert a CLI based raspbian into a GUI one. I saw a script somewhere that did all that work for you and would automatically display the dashboard on a monitor, but I don't have the time to find it right now, plus it was still a work in progress from what I gathered. You would also have to follow the instructions that come with the board to install and setup the RPi to load the specific overlays it needs to make the display functional as a monitor.

I saw here https://www.raspberrypi.org/forums/view ... p?t=143581 that installing the old drivers on Jessie wasn't recommended anymore, so I only assume that is the same for Stretch and Buster. You haven't mentioned which Pi-star version you are trying to get it to work on so I don't know if that helps at all, but either way take a look at the install instructions that come from your board creator and you should be able to get it working.
All views, comments, posts and opinions shared are entirely my own.

pd1loi
Posts: 13
Joined: Wed May 02, 2018 7:43 am

Re: 3,5 inch LCD screen install on Pi Star?

Post by pd1loi » Sat Sep 14, 2019 12:17 pm

Thanks, then I use the screen but not for that.

KE7FNS
Posts: 290
Joined: Wed Apr 17, 2019 11:11 pm

Re: 3,5 inch LCD screen install on Pi Star?

Post by KE7FNS » Sat Sep 14, 2019 8:31 pm

pd1loi wrote:
Sat Sep 14, 2019 12:17 pm
Thanks, then I use the screen but not for that.
Now that I think about it again, I'll bet that the reason it is displaying only a white screen is because there is no xserver installed on Pistar. You are kind of cart before the horse. If you booted a normal desktop GUI version of raspbian and then ran the display install instructions, it would probably work fine.

Also, it looks like it shares some of the GPIO pins that a modem would use, so I don't think you are going to be able to get it working with a modem connected to the GPIO at the same time, but if you have a modem that can be connected by USB, I don't see why it wouldn't work.

I finally found that script I was talking about. No idea if it still works, so word of warning, this thread is pretty old.
viewtopic.php?f=3&t=1237&start=10

I think it would be pretty neat to see it working on a hotspot, or even just a regular RPi.
All views, comments, posts and opinions shared are entirely my own.

Post Reply