ST7789V with ESP32 Support Non-SPI Pins?

[KianYeo]

I have been trying to get the ESP32 to work with a ST7789V screen (2" 240 x 320) but its unsuccessful.

In the User_setup.h file, I am using the following settings:

define ST7789_DRIVER

define TFT_RGB_ORDER TFT_BGR

define TFT_WIDTH 240

define TFT_HEIGHT 320

define TFT_INVERSION_ON

define TFT_MOSI 23

define TFT_SCLK 18

define TFT_CS 15 // Chip select control pin

define TFT_DC 2 // Data Command control pin

define TFT_RST 4 // Reset pin (could connect to RST pin)

define LOAD_GLCD

define LOAD_FONT2

define LOAD_FONT4

define LOAD_FONT6

define LOAD_FONT7

define LOAD_FONT8

define LOAD_GFXFF

define SMOOTH_FONT

define SPI_FREQUENCY 27000000

define SPI_READ_FREQUENCY 20000000

define SPI_TOUCH_FREQUENCY 2500000

define SUPPORT_TRANSACTIONS

And in the User_Setup_Select.h file, I uncommented:

include <User_Setups/Setup24_ST7789.h>

I tried to load in the Colour_Test example in the test and diagnostics example folder, but nothing is appearing on the screen. I check all the connections and also replaced the screen but it is still not working.

Does the TFT_eSPI library support ESP32 with the ST7789V screen? Also, must I use the hardware SPI pins? Right now, the screen is connected to the non SPI pins.

Thanks!

======================UPDATE================================ Still didn't manage to get this library to work with ESP32 and ST7789V. I used another library Arduino-ST7789-Library (https://github.com/ananevilya/Arduino-ST7789-Library) and it works with the ESP32. So at least I am sure the PCB and ST7789V display is working. I am still trying to figure out why the TFT_eSPI lib is not working.

[KianYeo]

Problem solved. It was something to do with the backlight. Nothing to do with the library. Sorry for opening this issue.