Display 3,5" ILI9488

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giobbe
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Display 3,5" ILI9488

#1 Post by giobbe » 22 Dec 2021, 19:24

I'd use the display tft 3.5" touch screen with driver ILI9488.
If possible with ESPEASY?
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Giobbe

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Ath
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Re: Display 3,5" ILI9488

#2 Post by Ath » 22 Dec 2021, 20:27

That type of display is not yet supported.
According to the internet, the closest driver is the ILI9341, but with a few (crucial) code changes, as the device supposedly supports 18 bit (262144) colors instead of 16 bit (65535), so this implies it won't work with current builds, and colors have to be converted.

I'm working on extended device support for TFT displays, and have already included the ST77xx series of TFT drivers. so adding ILI9488 shouldn't be really hard. Color support will initially be limited to 16 bit (using RGB565), and converted to 18 (using RGB666), to not have to change settings incompatibly.

I will need your help for testing, as I don't own the hardware...

NB: The XPT2046 touch driver is already supported :)

Edit: Corrected color-depth: it's 18 bit, not 24.
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Re: Display 3,5" ILI9488

#3 Post by TD-er » 23 Dec 2021, 00:17

Not to be the Debby Downer here, but if support for an extra display does mean extensive changes in the code, we may want to get the current PR merged first.
Otherwise there will be the next display, etc.
There are lots and lots of people asking for that plugin which is pending, so let's get it actually be used as it is almost finished.

So "delaying" support for this display will probably not result in a delay for when _this_ display is supported, but trying to include it in the pending PR will delay it for all others waiting.
And of course if the next display request is made, it will delay support for _this_ display if that gets put in too and thus delaying the pending plugin even more.

TL;DR
Let's put a feature freeze for now on that pending PR and after it has been merged we can continue with this one (and the next... )

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Ath
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Re: Display 3,5" ILI9488

#4 Post by Ath » 23 Dec 2021, 07:45

Yes, agree, there is also a request for the ILI9342 used in M5Stack in this thread (same OP) ;)
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giobbe
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Re: Display 3,5" ILI9488

#5 Post by giobbe » 27 Dec 2021, 18:48

I'm available for testing for ILI9342 used in M5Stack and ILI9488.
let me know when I can try the software
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Giobbe

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Ath
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Re: Display 3,5" ILI9488

#6 Post by Ath » 09 Jan 2022, 20:35

I've created a pull request #3903 for an update to P095, adding support for ILI9342, ILI9481, ILI9486 and ILI9488.

If you would be so kind to do testing on your available units, that will be appreciated very much :!:
/Ton (PayPal.me)

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