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XarkLabs / PDQ_GFX_Libs

Optimized fork of Adafruit's GFX library (and drivers) for Arduino (AVR).
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LCD White screen #23

Closed Gabe-Brown closed 3 years ago

Gabe-Brown commented 4 years ago

I can't get this library to work with my ili9341 tft display. My screen works fine when using the code and circuit from here: https://educ8s.tv/arduino-2-8-ili9341-tutorial/ but the screen stays white when using the example code from this library. All pins are addressed the same and I have even tried code that just changes the screen colour with the two different libraries but it is the same. I am very new to Arduino so I might be doing something stupid but I think the problem might be a lack of logic level converter. Any help would be appreciated.

XarkLabs commented 4 years ago

Hello, it is difficult to know what your problem might be remotely (and many things might cause "white screen"). That module looks pretty standard. Offhand I would suspect maybe not resetting the display properly, but that is just a guess (check that RST reset pin is correct in .h file with example). No logic level conversion would be a problem (mostly for the display - it can harm it), but I don't understand why it would run with the other library. Seems likely there is some other pin layout difference?

goa commented 3 years ago

In my case, moving the RST pin to the Mega's RESET pin did the trick :) Thanks for this wonderful piece of work @XarkLabs 🙏🙏🙏!

XarkLabs commented 3 years ago

That is excellent! :slightly_smiling_face: I'm very glad it is working for you. I appreciate the update, too.