Pages: [1]   Go Down
Author Topic: Iteadstudio TFT ( http://goo.gl/Yb1SeL ) is showing white screen.  (Read 544 times)
0 Members and 1 Guest are viewing this topic.
Offline Offline
Newbie
*
Karma: 0
Posts: 11
Dama Dama ...
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

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.

* UTFT_Demo_320x240_Serial.ino (6.76 KB - downloaded 21 times.)
Logged

Canada
Offline Offline
Newbie
*
Karma: 0
Posts: 9
byte me
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

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.
Logged

Czech Republic
Offline Offline
Sr. Member
****
Karma: 4
Posts: 313
Absolute Beginner, yet.
Newbie in Arduino
since May 2013
View Profile
WWW
 Bigger Bigger  Smaller Smaller  Reset Reset

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/
Logged

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...

Offline Offline
Full Member
***
Karma: 3
Posts: 148
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

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
Logged

Pages: [1]   Go Up
Jump to: