3.2" TFT Graphics appear stretched and shredded
hello,
i'm working on digitally controlled bench power supply project, , wanted design gui it. processor of choice atmega2560 (arduino mega 2560 board).
while testing display, has come attention not right, text barely readable , graphics seem stretched / scaled / washed out.
the display on ssd1289 controller, connected arduino board through level converter since tft display operates on 3.3v
the library use utft since seems logical choice go with, it's nicely laid out , worked similar 1 before. display tested included examples. used different test project depended on library. changing controllers in sketch definition yelds same results.
the touch screen part works fine.
i've done research on problems people have screen modules, closest find shifted pixels , offsets, not have here. take @ pictures below:
if has ideas, please post. have scope , general test equipment.
cheers!
i'm working on digitally controlled bench power supply project, , wanted design gui it. processor of choice atmega2560 (arduino mega 2560 board).
while testing display, has come attention not right, text barely readable , graphics seem stretched / scaled / washed out.
the display on ssd1289 controller, connected arduino board through level converter since tft display operates on 3.3v
the library use utft since seems logical choice go with, it's nicely laid out , worked similar 1 before. display tested included examples. used different test project depended on library. changing controllers in sketch definition yelds same results.
the touch screen part works fine.
i've done research on problems people have screen modules, closest find shifted pixels , offsets, not have here. take @ pictures below:
if has ideas, please post. have scope , general test equipment.
cheers!
you have concealed how have connected 3.3v signals 5v mega2560.
there several different makes of 40-pin tft mega2560 adapter shields.
utft happy driving these adapters.
your photos not 320x240 geometry. if anything, they square.
it extremely unlikely have speed issues mega2560. utft designed slow.
i sort out electrical signals first. then easy fix timing issues (on efficient library or due target )
there several different makes of 40-pin tft mega2560 adapter shields.
utft happy driving these adapters.
your photos not 320x240 geometry. if anything, they square.
it extremely unlikely have speed issues mega2560. utft designed slow.
i sort out electrical signals first. then easy fix timing issues (on efficient library or due target )
Arduino Forum > Using Arduino > Displays > 3.2" TFT Graphics appear stretched and shredded
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