I am new to the use of Displays in Arduino. I am using an Arduino MEGA 2560, together with a mega shield v2.2 LCD and a TFT 7 inch display.
Since I connected it for the first time, it sends me a blank screen, and after trying with the adafruit and MCUFRIEND libraries it still doesn't work. When uploading the MCUFRIEND program, it tells me: "Serial took 0ms to start ID=0x404"
I clarify that I do not have the purchase reference because it is for a university project, therefore they were in charge of buying everything and I do not have that information
and I got stuck here. Can you help me?