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Topic: 4.3" TFT LCD Touch Screen and Arduino Mega (Read 1 time) previous topic - next topic

kernel32

Hi everyone,
Simply i want to draw a picture to my tft lcd touch screen. I bought 4.3" TFT LCD Touch Screen with SD card support. And for the connector/resistor PCB i bought ElecFreaks's TFT LCD Mega Shield v2.2 and i have arduino mega 2560. I found a sample code in Arduino IDE. But it's not working. I think it's about the pin definition. I couldn't find anything about this situation. Program was compiled succesfully and uploaded successfully but at the Serial Monitor loggin this. " Initializing SD card... failed! "
The sample code check out the on Arduino IDE > TFT > Arduino > TFTBitmapLogo.

Thanks...

MarkT

Was there an SDcard in the slot?  If not then initializing an SDcard will definitely fail.
[ I won't respond to messages, use the forum please ]

kernel32

Yes, Of course. I formatted sd card with fat system. It's 8 GB.
Any idea?

MarkT

There is more than one SD library to experiment with, but first check all the signals are
intact and at 3.3V level.  These TFT/SD modules never seem to have level-shifting on the
SDcard.
[ I won't respond to messages, use the forum please ]

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