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Topic: Iteadstudio TFT ( http://goo.gl/Yb1SeL ) is showing white screen. (Read 644 times) previous topic - next topic

damalex

Board Used: Arduino Mega 2560 R3

TFT screen used : http://www.digibay.in/display/lcd/235-3-2-inches-wide-tft-lcd-module-400x240-with-sd-card-slot-and-touch-panel

Library used : UTFT ( http://www.henningkarlsen.com/electronics/library.php?id=51 )

Connections made: http://www.henningkarlsen.com/electronics/files/UTFT_Requirements.pdf

Under this condition (NO uploaded code ) :TFT screen is showing a white screen.

After upload of the code (ATTACHMENT) :
TFT screen is flicking with black and white at DEFINITE intervals. ( as if the code is actually running)

I have made connections twice thinking it  is a connection fault.

jgalaxy

I had a similar issue using the ITEAD STUDIO 2.4" TFT based on the ITDB24E.  I issued an lcdOff() and lcdOn() method at the beginning which resolved my specific problem.

K5CZ

Arduino Mega 2560 uses 5V TTL logic. Your display needs 3.3V TTL logic. You must add the level converter to your circuit. Google says:
http://hifiduino.wordpress.com/2012/04/13/iteadstudio-tft-display-for-arduino/
Arduino Uno R3, Arduino Mega 2560 R3, Ethermega (R3), and some Ethernet Shields (R3), Chronodots, TMP36 sensors, DS18B20 sensors, LCDs/TFTs, RS232C to learn and play...

Magicj

As mentioned, are you using one of these shields?
http://www.digibay.in/development-boards/shields/tft-lcd-adapter-shield-for-arduino-3-2-to-5-inch-screens

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