Adafruit 1.8 TFT display skewed

EL Wire/Tape/Panels, LEDs, pixels and strips, LCDs and TFTs, etc products from Adafruit

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vanarebane
 
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Joined: Fri Dec 30, 2011 8:40 am

Adafruit 1.8 TFT display skewed

Post by vanarebane »

Hello.

I'm having problems with the LCD. I attached an image of how the LCD prints - it has the image skewed across the lcd and top row (left on the picture) and two rows from the left of LCD (bottom on the picture) are random pixel noize.
Image with the problem
Image with the problem
1.8_lcd_problem.jpg (270.95 KiB) Viewed 818 times

I also upload the code i used
spitftbitmap_ok.rar
The Code
(119.32 KiB) Downloaded 67 times
The parrot.bmp is renamed to 1.bmp

I had to do some modifications to the code as it was not working with Arduino Win IDE 1.0 and presented a lot of errors with the library.

Board used was Mini Arduino Pro 386P @ 8MHz / 3.3V
Wiring was exactly as here: http://www.ladyada.net/products/18tftbreakout/

Plz help. I have been searching for eternity now for a solution :(

adafruit
 
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Joined: Thu Apr 06, 2006 4:21 pm

Re: Adafruit 1.8 TFT display skewed

Post by adafruit »

does the example code work?
did you download the latest library?

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PlastiBots
 
Posts: 120
Joined: Fri Mar 25, 2011 7:12 pm

Re: Adafruit 1.8 TFT display skewed

Post by PlastiBots »

FYI - I just got this LCD and ran across the same issue above... Found the below code in the sample. My LCD had the red tab (good think I did not take out the garbage!). So uncommented the redTab init and it worked.. with one exception - the image is upside down?!

Code: Select all

 // If your TFT's plastic wrap has a Green Tab, use the following
  //tft.initR(INITR_GREENTAB);               // initialize a ST7735R chip
  // If your TFT's plastic wrap has a Red Tab, use the following
  // since the display is shifted a little in memory
  tft.initR(INITR_REDTAB);               // initialize a ST7735R chip

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