ST7789V2 HT0154AI01A TFT LCD

[vahithosan]

Hi. Does anyone have experience using an lcd like this?
https://cdn.ozdisan.com/ETicaret_Dosya/603399_203252.pdf
TFT Driver IC ST7789V2-G4-A
TFT Interface MCU/SPI

I want to run it using SPI but I can't.

I make the connections like here but it doesn't work.
https://learn.adafruit.com/assets/79156

        |LCD PINS  | ESP32 PINS
| 1     | Led_a    | 3.3v     | 
| 2     | Led_k    | GND      |
| 3     | GND      | GND      |
| 4     | VCC      | 3.3v     |
| 5     | TE       |          |
| 6     | CS       | GPIO15   |
| 7     | RST      | GPIO4    |
| 8     | RS/SCL   | GPIO14   |
| 9     | SDI      | GPIO13   |
| 10    | WR/SDI2  | GPIO2    |
| 11    | RD       | GND      |
| 12-19 | D[7:0]   | GND      |
| 20    | IM0/IM2  | 3.3v     |

I am changing the SPI definitions like "polarity=0 or polarity=1" or boudrate ...
i tried different drivers but it doesn't work.

st7789v2 may not be compatible with st7789?

Now, I'm working on this.
https://github.com/peterhinch/micropython-nano-gui/blob/f0619a8e194960d686c9d0aaa8bcd3431fe400ae/DRIVERS.md#33-drivers-for-st7789

color_setup.py:

from drivers.st7789.st7789_4bit import *
from machine import Pin, SPI
import gc

SSD = ST7789

pdc = Pin(2, Pin.OUT, value=0)  # Arbitrary pins
pcs = Pin(15, Pin.OUT, value=1)
prst = Pin(4, Pin.OUT, value=1)

gc.collect()  # Precaution before instantiating framebuf
spi = SPI(1, 30_000_000, polarity=0, sck=Pin(14), mosi=Pin(13))
ssd = SSD(spi, height=240, width=240, dc=pdc, cs=pcs, rst=prst)

main.py:

from color_setup import ssd  # Create a display instance
from gui.core.colors import RED, BLUE, GREEN, WHITE, BLACK, LIGHTRED, YELLOW, GREY, DARKGREEN

ssd.fill(WHITE)
ssd.fill_rect(6,6,26,26,BLUE)
ssd.fill_rect(6,34,26,26,GREEN)
ssd.fill_rect(6,62,26,26,RED)
ssd.fill_rect(6,90,26,26,YELLOW)
ssd.fill_rect(6,118,26,26,GREY)
ssd.fill_rect(6,146,26,26,DARKGREEN)
ssd.fill_rect(6,174,26,26,LIGHTRED)
ssd.show()