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moononournation / Arduino_GFX

Arduino GFX developing for various color displays and various data bus interfaces
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can't get to work LCD SPI 2'' ST7789 320x240 #247

Closed ESPboy-edu closed 1 year ago

ESPboy-edu commented 1 year ago

lib is OK to work with ST7735 128x128, 128x160, ST7789 240x240 but can't get work this one LCD SPI 2'' ST7789 320x240

https://aliexpress.ru/item/1005004237117445.html?sku_id=12000028482573872&spm=a2g2w.productlist.search_results.12.2ae84aa63tc3rP (it's not OLED as mentioned in description :) )

it works with TFT_eSPI without any problems it has 5v logic and take into account that for 3.3v it is necessary to remove SMD voltage dividing resistors on the back side of the LCD

thanks for great work and brilliant gfx lib!

moononournation commented 1 year ago

more details? I am using ST7789 in many projects without problems.

ESPboy-edu commented 1 year ago

yes, your excellent lib works with different ST7789 in my projects too but not with 2.0'' display mentioned above (but display is ok because it works with TFT_eSPI lib). i'll do more tests recently and let you know

moononournation commented 1 year ago

any update?

tapeboy7 commented 1 year ago

Make sure you have the reset pin defined and connected, It seems like the ST7789 chip is picky about that. I had multiple GC9A01 displays working simultaneously, (they work fine without the RST pin connected) but I couldn't get a ST7789 based display work when I added it as a 3rd display, until I defined and connected the RST pin on it.