Tap the touch screen does not respond

I recently bought a touch screen, I use Arduino and the screen, I have no problem with the code, but when they are connected together, I tap the screen and nothing happens.

The screen is from: https://www.stoneitech.com/

and the Arduino is UNO.



  • edited July 2021

    Since you have bought their LCD display product and you are having questions using it, I think you would be better off seeking help on their forum at https://forum.stoneitech.com

    Besides, you did not indicate which exact LCD display model that you are using.

  • Sorry for the late reply, I think the advice you gave is right, I think the interface I am using is wrong, my LCD defaults to RS232 interface, I should change it to TTL interface.

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