Hey, i could not figure out how to get hello world to print, the connections where correct, there was no resistance in anny of the pins or the unit itself. it was even showing lights and blinking Turns out that you have to adjust the blue phillips on the unit
btw this was never a ask for help, just a solution for those having the same annoying problem, might be a stupid error on my part but the simple things are the easy once to forget about.
Who can tell out of no information given? No code, no schematics....
You have not read all. I dont have a problem, i solved it myself and explained that you just have to screw the blue phillips screw. And there is a giant photo with a red circle around it......
Not adjusting the pot is a very common mistake and this was posted many times on this forum by various members and solved many first time LCD users problems.
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