3.2″ TFT LCD (new)

In my this writing i will introduce my new TFT LCD display.

Front Side

Front Side

Rear side

I bought that screen because my previous screen was not good enough. It couldn’t run all UFTF library and technical support was not sufficient. So i ordered new one from ebay, sellers name is electronics_lee . It is 3.2″ touch screen (1)

first of all i only connected TFT connections without SD card and TOUCH screen pins.
My connections are same as at “UTFT_Requirements” files in page 2 and 4. (2)

Then i faced different problems at the screen. Some random lines/strip occur aat the screen while a process happening in the screen. If you have same problem i highly recommed  to power of the screen because this lines are occur because of high voltage.

Without voltage divider resistor - while screen output is changing

Without voltage divider resistor – while screen output is changing

Without voltage divider resistor - while screen output is constant

Without voltage divider resistor – while screen output is constant

Arduino’s output high level is 5 volts and screen’s high volt is 3.3 volt but tolerated to 5 volts. I used 330 ohms and 1K ohms resisters as a voltage divider for all outputs of arduino. Divided (reduced) voltage goes to the screen.  After this correnction , screen works fine.

After arduino's output is reduced to 3.3 volts by using resistors.

After arduino’s output is reduced to 3.3 volts by using resistors.

(1) 3.2″inch TFT LCD Display module + touch panel & SD card cage for Arduinohttp://www.ebay.com/itm/3-2-inch-TFT-LCD-Display-module-touch-panel-SD-card-cage-Arduino-/271201097446?pt=LH_DefaultDomain_0&hash=item3f24d856e6

(2) Download “UTFT.rar” http://henningkarlsen.com/electronics/library.php?id=51

ozturkgokhan hakkında

Electrical and electronics engineer. In turkey.

Eylül 11, 2014 tarihinde Graduation Project içinde yayınlandı ve , , , , , , , , olarak etiketlendi. Kalıcı bağlantıyı yer imlerinize ekleyin. Yorum yapın.

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