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The software part is working fine.
These displays have 2 problems: it is difficult to choose the contrast and poor build quality.
Contrast is Nokia5110LCD. With line 252 (for details - on the Internet)
push on the screen in different places - the image should appear.
In the project you have attached, the pins P2 and P3 are used. I guess you have attached them incorrectly. Those pins are on the different side of the same header. Please change them and check once.
Thanks Evengiy, I'll try your suggestions.
Ganesh, the pin P2 is only used as a toggle pin for my scope to synch to...it's not for driving the display.
So, thanks to Evgeniy, I managed to make progress. The display now has come to life :-)
I had otherwise written off the LCD as a lost cause, so big thumbs-up.
Have a virtual drink on me, Evgeniy
I was glad to help, good luck!