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Thread: 3.5'' TFT 480x320 ILI9341 Display with Teensy 4.0

  1. #1
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    3.5'' TFT 480x320 ILI9341 Display with Teensy 4.0

    Hi everyone,

    I just got a 3.5'' TFT 480x320 ILI9341 Display from Aliexpress (I got 2 actually, one 3.5'' and another one 4'').

    I tried the ILI9341_t3 library
    HTML Code:
    https://github.com/PaulStoffregen/ILI9341_t3
    but they did not end up working (one shows a white screen and another one just one quarter of the screen shows the actual image).

    I would like to know if the library I am using is capable of working with 480x320 displays. Maybe it can be the screens are not working (Aliexpress things, you know).

    Thanks for the help.

  2. #2
    Upload a link to see which screens you purchased.

  3. #3
    Senior Member+ KurtE's Avatar
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    I doubt that it is an ILI9341 as they typically have a resolution of 320x240.

    Might help to have links to the ones you purchased. There are several different displays in the size with different processors or the like:

    Now assuming simple breakout of pins and not one for RPI, first guess: ILI9488. Like: https://www.aliexpress.com/item/4001...473fb6d2a67a-2

    If so you might try the: ILI9488_t3 library.

    Also in that resolution there are HX8357 displays like what Adafruit sells, but I don't see any from Aliexpress

  4. #4
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    Hi KurtE, thanks for answering, and sorry for my late response.

    I got the 3.5'' and the 4'' displays from Aliexpress, these are the respective links:

    https://es.aliexpress.com/item/40002...6aa163c0bdIYi0

    https://es.aliexpress.com/item/40010...6aa163c0bdIYi0

    Click image for larger version. 

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    As you can see in the picture, they claim to be 480x320.

    Trying the ILI9341_t3 library I got the following:

    Click image for larger version. 

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    Click image for larger version. 

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    The one that shows colors is the 4'' one.

    I will try to use the library you mention.

    Thanks for your help

  5. #5
    Senior Member+ KurtE's Avatar
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    I am pretty sure they have wrong information on those links... If you look at the one I included and look at the pictures, you will see the one that shows the back of one matches the one you have. Also the resolution of the display...

    If you look at the datasheet for the ILI9341(https://cdn-shop.adafruit.com/datasheets/ILI9341.pdf) you will see it is 240x320

  6. #6
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    Indeed, your ILI9488 library worked like a charm. At least the examples. Thanks a lot for your help, that missleading information made me get soo confused.

    Thank you everyone

  7. #7
    Senior Member+ KurtE's Avatar
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    Quote Originally Posted by xpeedster View Post
    Indeed, your ILI9488 library worked like a charm. At least the examples. Thanks a lot for your help, that missleading information made me get soo confused.

    Thank you everyone
    You are welcome. Glad it is working.

    If you get a chance, you might try sending message or the like to aliexpress telling them this, such that hopefully they will update their listings.

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