Author Topic: High Speed 800x480 display suggestion  (Read 1787 times)

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Offline v.stefaTopic starter

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High Speed 800x480 display suggestion
« on: December 09, 2021, 05:28:56 pm »
Hi,

I wouls like a suggestion for a high speed display with 800x480 resolution.
I would like to display a panadapter screen like in the picture below. The display should refresh the screen 10/15 times per second.
I did a test with a Nextion Intelligent display but i found it very slow.
At the moment I am using the ESP32s micro controller that has enough power to do calculation and communication stuffs. Maybe I have to use another hardware "platform" with dedicated options like displays but I don't know what is the right one.
Thank you in advance for any help

Best regards
Enzo

 

Offline fchk

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Re: High Speed 800x480 display suggestion
« Reply #1 on: December 09, 2021, 08:01:39 pm »
The easiest would be a Linux solution - something like this one:
https://www.olimex.com/Products/SOM/STMP1/

The STM32MP157 has OpenGLES Graphic Acceleration, the 151 and 153 only have simple framebuffers. You can use QT, wxWidgets, GTK,... for your application.

The LCD screens are standard dumb LVDS displays without memory or anything else - just the driver chips for the glass. The GPU inside the processor does all the work. These displays are available in all sizes and resolutions up to full hd. Look in the processors manual what the maximum resolutions and pixel clocks are.

These LCD scrrens are also available with touch support.

Some folks will recommend Raspberry PIs. These boards have the huge disadvantage that they can't drive standard LVDS displays. You are limited to the DSI displays they offer.

If you prefer microcontroller platforms - yes, there are some. But software development is more difficult on these platforms. Linux apps can be developed on a PC and ported to the embedded board later on.

fchk
 
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Offline v.stefaTopic starter

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Re: High Speed 800x480 display suggestion
« Reply #2 on: December 13, 2021, 04:29:09 pm »
Thank you very much for your hints.
It is a completely new world for me but it is seems very exciting :-+

 


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