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3.5" TFT touch screen display only displaying 2.8"
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3.5" TFT touch screen display only displaying 2.8"

by dmunyon8 on Fri Jul 23, 2021 10:31 am

Hello,

I am trying to use the 3.5" TFT touch screen display with my Arduino Mega 2560. I chose to use 8-bit data transfer for this project since the Mega is not limited in its number of pins.

I followed the instructions in the article for the display and downloaded the drivers that the article said to use for the 8-bit data transfer.

When I ran the provided test code it appears to be the drivers for the 2.8" TFT Display. The test code for the display, only displayed on 2.8" of the screen leaving the rest of the screen blank.

I tried looking through the driver myself to see where the screen size is defined, but I came up short. Can somebody point me in the right direction for fixing the Driver?

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Re: 3.5" TFT touch screen display only displaying 2.8"

by dmunyon8 on Fri Jul 23, 2021 4:49 pm

To clarify the article I was referring to was the Adafruit article for the 3.5" TFT Display. The drivers I was referring to were the Adafruit drivers that were referenced in the Adafruit article.

dmunyon8
 
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Re: 3.5" TFT touch screen display only displaying 2.8"

by adafruit_support_carter on Mon Jul 26, 2021 1:09 pm

See here for info on what files to edit:
https://learn.adafruit.com/adafruit-3-5 ... -841114-24

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