Elegoo TFT screen - TFT_ST7735 library

I'm having a lot of trouble trying to figure this out.

I'm using an Elegoo 2.8 inch TFT screen, I'm using this with an Arduino Mega (also have an Uno).

I'm then trying to get this working GitHub - Jcarlsonm31/GameBoy: An Arduino-based homemade GameBoy.
This links to the TFT_ST7735 library which I have installed.

It says to change the settings in User_Setup but I can't get anything to show up.

I currently have:

#define TFT_CS A3 // Chip select control pin
#define TFT_DC A2 // Data Command control pin
#define TFT_RST A4 // Reset pin (could connect to Arduino RESET pin)

The reset and CS seem to line up but I can't find the DC. Does anyone have an experience with this?

Software on the CD ?

Are you sure of the driver chip? this chip?

Please post a link to the actual screen that you have. e.g. Ebay sale
Please make sure that all the photos on the link accurately match the item you have on your desk.

If not, please take a photo of the pcb side of your screen.

The ST7735 is a 132x162 controller. Typically found on 1.44" 128x128 or 1.8" 128x160 displays.

David.