Darkboss99:
well I changed the library and resoldered the wires and it worked..
it displayed everyhingbut now it just shows white boxes ???
what could cause that
re-soldering could fix connection issues that can cause memory issues.
You need to provide more details.
In post number 12 you said:
it works now
But now you say it isn't working.
What is working and what isn't?
And what s/w are you using to test & verify that things are working?
hd44780 and I2CexpDiag is the best tool for testing and verifying the device.
If all characters are boxes, then the contrast pot is not adjusted correctly.
--- bill