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RA8875 with 7'' Touchscreen White Screen
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RA8875 with 7'' Touchscreen White Screen

by King_John on Sun Mar 11, 2018 12:36 am

I'm having an issue with the RA8875 and the 7" TFT. The backlight is on and the screen is white. When running the example sketches, the screen will briefly flicker full of lines, then go back to white. The 'flicker' seems to happen when the Uno gets to this line: " tft.GPIOX(true);". Nothing happens on the screen for the remainder of the execution.

Side note, when touching the screen, the INT pin goes low, and stays low. The Arduino pin is seen as low, as well, but 'tft.touched()' never seems to evaluate as true.

Note, I have set the proper resolution and such in tft.begin();

Thoughts?

King_John
 
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Joined: Tue Oct 15, 2013 5:47 pm

Re: RA8875 with 7'' Touchscreen White Screen

by adafruit_support_carter on Thu Mar 22, 2018 10:53 am

Please post a photo of your setup showing how you have everything connected together.

When running the example sketches

Are these from the library? Probably are, but let's pick one to trouble shoot with, suggest the textmode example:
https://github.com/adafruit/Adafruit_RA ... xtmode.ino
but if you're trying another one, just let me know so I can look at that specific code example.

adafruit_support_carter
 
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Joined: Tue Nov 29, 2016 2:45 pm

Please be positive and constructive with your questions and comments.