TFT DISPLAY ILI9486

Annex for ESP32
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TrevorB
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TFT DISPLAY ILI9486

Post by TrevorB »

Anybody hooked one of thes up to an ESP 32s...set the config and connected up using the VSPI connections, no joy, will try the SPI connections next..Just wondered if anyone else is ahead of me on the curve
Last edited by TrevorB on Tue Jul 20, 2021 10:08 pm, edited 2 times in total.
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Re: TFT DISPLAY ILI9486

Post by cicciocb »

I can confirm that it works, tested during the implementation of the driver.

Do you have the same display as shown in the help?
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Re: TFT DISPLAY ILI9486

Post by TrevorB »

yes the blue PCB with the 26 pin Dual socket 480x320 XPT 2046 Touch controler...Not managed to get anything on the screen yet config set to IL9486
back view.jpg
This is what I suspect is the screen pin out not sure which is the CE for the screen or the Touch side but tried them both and the VSPI connctions on the 32S

Pin Number for TFT Signal

18 DC GPIO 27 11
9 MOSI GPIO 23 37
21 MISO GPIO 19 31
23 SCLK GPIO 18 30
22 RST GPIO 33 8
26 or 24 ??? CE GPIO 5 29
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Re: TFT DISPLAY ILI9486

Post by cicciocb »

Hi,
the CS for the TFT is the pin 24 as documented here :
image.png
This display is configured to be supplied with 5V so the Voltage regulator must be bypassed (solder- bridged) if it is supplied with 3.3V.
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Re: TFT DISPLAY ILI9486

Post by Fernando Perez »

Please Cicciocb, can you clarify to which GPIOs of the ESP32 the pins of the ILI9486 should be connected?
It is not clear to me because the diagram does not appear in the help manual, as in the rest of the TFT modules.
I am trying with this module (checked with Raspberry PI) and I get nothing but a white screen. I select ILI9486 on the configuration page.
image.png
image.png
Thanks.
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Re: TFT DISPLAY ILI9486

Post by cicciocb »

Hi Fernando,
this should be the wiring.
I'll try to test with the display that I own .
image.png
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Re: TFT DISPLAY ILI9486

Post by Fernando Perez »

Perfect, Cicciocb. I confirm that this screen is working right now with the configuration you indicate.
The presentation screen appears, allows drawing figures, and the touch delivers a signal that seems correct.
Cool!
image.png
Note: In principle it does not seem necessary to connect all the GND points since they are already internally
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Re: TFT DISPLAY ILI9486

Post by TrevorB »

I can confirm these connections work My TFT screen is up and running. Not played with the Touch part yet and I think I killed an ESP32 powering the TFT from pin 19 (Vcc) its not a direct connection to the USB. I suspect a diode or print damage, something not quite up to powering the TFT. Nothing that can't be sorted but beware. It lasted about 1 hour. Thanks Cicciob and Fernando for all the help
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Re: TFT DISPLAY ILI9486

Post by TrevorB »

Has anyone got this display working with a 30 pin module
GPIO 0 (chip select for the touch screen) is not brought out to an edge pin on these modules
Touch.Setup 15 moves the connection in ESP 8266
On an ESP 32 it gives a Syntax error
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Re: TFT DISPLAY ILI9486

Post by cicciocb »

[Local Link Removed for Guests] wrote: [Local Link Removed for Guests]Fri Aug 20, 2021 10:42 pm Has anyone got this display working with a 30 pin module
GPIO 0 (chip select for the touch screen) is not brought out to an edge pin on these modules
Touch.Setup 15 moves the connection in ESP 8266
On an ESP 32 it gives a Syntax error
It is not possible to change the pin and the GPIO0 is fixed in the code.
However you could try to solder a wire on the PROG pushbutton as it is wired on the GPIO0
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