I will get straight to the point.
Problem: The text on my 20x4 display is back to front (mirror).
LPC port chip with LCD support. It outputs by spi on 3 wires to a bespoke designed Arduino on a PCB done by someone else.
I have had a look and opened the code and the pdf command sheet.
Ultimately, can any good person on here correct the .ino for me to compile & upload again to the Arduino Pro? I would be most grateful.
Thank you for taking a look anyway.