I have an ST7789 with touch problems that doesn't work, I've read all the warnings, but despite all the tests I haven't solved it #3142
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suntchi2018
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SDI (Serial Data In = MOSI) of the display should connect to the touch DIN (Data In) pin and the display SDO (Serial Data Out = MISO) pin should connect to the touch DO (Data Out) pin. |
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Of course Bodmer, I have been using your library for a long time, I love it, it's a shame that although I don't lack ideas, I lack attention. I hope I won't bother you anymore with my oversights and I thank you and wish you much happiness. |
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Hi to all, sorry me, I was so focused on finding the solution to the problem that I forgot to say that I am using version 2.5.34 and that I thank Bodmer for his fantastic library that I have been using for some time with great satisfaction and above all I thank him for the excellent support that I have already successfully received other times previously.
This is the problem, I have 2 ST7789 displays, one just unpacked and tested, but in both the touch doesn't work. This is my setup. User_setup.h:
The connections are correct and rechecked several times, on both displays and cables they are all working.
I tried the various tests; Colour_Test, Read_User_Setup, FTF_ReadWrite_Test which all work except the Test_Touch_Controller. The touch chip (controlled) is XPT2046.
Both displays work perfectly and the colors are correct.
The module in use is an ESP32-WROOM-32 but slightly different as it uses a different serial chip using USB-C (I attach a photo) the pining is identical the module chosen with Arduino IDE 2.2.1 is ESP32-WROOM-DA-Module.
If I touch the pins of the chip with my finger during the Test_TouchWrite_Test, I see some numbers so I guess the chip is working, maybe the connections are broken, but I doubt in both displays. Unfortunately the only possible configuration is the one indicated for the display with the ILI9341 chip but I imagine they are also valid for the ST7789 display.
I tried removing the MISO pin from the TFT connector, but it still doesn't work.
I attach photos of the chip.




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