URTouch.h library not working on TFT display 3_2-Inch-ILI9341-TFT-LCD-Display

Other Hardware Displays
1

I'm having problems with the touch screen using the URTouch.h library, I can calibrate the display using the calibration sketch - update URToughCD.h file with the calibration data but when I run the URTouch_ButtonTest sketch the Touch screen doesn't respond correctly. I got the display and shield from Banggood.com which was suggested from a How to Mechatronics tutorial on a TFT display project.

The TFT- LCD :-

https://www.banggood.com/3_2-Inch-ILI9341-TFT-LCD-Display-M…

The shield :-

https://www.banggood.com/3_3V-TFT-LCD-Adjustable-Shield-Exp…

  • the actual one supplied was a V2.0.

config UTFT myGLCD(ILI9341_16,38,39,40,41);

URTouch myTouch( 6, 5, 4, 3, 2);

Arduino Mega 2560

Hope somebody can help, I would like to get the screen up and running

Thanks
Alan

2

Go on. Neither of your links work. Please test any links that you post. Ideally, make the links clickable. (chain-link is 12th icon from left)

When you do find an accurate link, please compare your pcb with photos in the link.

Especially the model number that is printed on the pcb.

David.

3

Hi David

The Shield I received is V2.0 rather than V1.0 shown in the link , but looks identical as far as I can tell.

The 3.2 Inch TFT display I received is Marked TFT_320QVT_9341 , in the link TFT_320QVT

The display is fine just the touchscreen is responding correctly.

Thanks

Alan

4

It does not inspire much confidence when both items have inaccurate descriptions. Especially when it is a big company like BangGood.

Run the URTouch Calibration sketch and copy-paste the result to your message.

The URTouch examples do not seem to use the Serial Terminal.
You could add a simple loop to report the values of rx and ry for each of your 8 cross-hairs to Serial.
David.

5

Hi Alan,

did you solve your problem ?
I've got the same as you.

Thx
windo