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Hi Derek,
SWR/Power meter doesn't need that great resolution, I think in Loftur TF3LJ project all those routines about modulation analyzer and touch menu are pretty useless and resources-consuming,...

I've found a tweaked code for the project I posted using the buydisplay RA8875 display.
The author of tweak (not the original author) had to use Teensy3.6 because of lack of CPU resource of 3.2 when...

Hmmmm, I forgot to scroll down the webpage for all of both display informations (including datasheets, interface configuration, and example codes)

They seem to be the same controller-equipped...

I've seen some projects using succesfully those buydisplay ones , what's the difference (interface) between these two ?
...

As you can see from images, resolution is not so important, but if more resolution=more SPI data throughput things get worse.....

Just to understand how it works I'll try with ILI9488

Thank you

I'm building this :

https://sites.google.com/site/lofturj/power-and-swr-meter---rev

The instrument has to be installed 1-1,5 meter far from the eyes and honestly I would need glasses on with...

Thank you for replies,
At last, it seems no large display than 3,2-3,5" are available with SPI interface, and rewriting code is for me impossible due to lack of knowledge, perhaps modify it a...

Noob question:

Is it possible to replace an ILI9341/XPT2046 2.8" display already running in a project with a bigger one ?

I mean , do bigger (4"-5") SPI display with same touch controller exist...