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Commands for LCD Display with Raspberry pi doesnt work!

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Matlab_Beginner
Matlab_Beginner on 6 Nov 2022
hello, i m trying to display some messages on my (20*4) lcd display, which i connected via I2C to the Raspi. i created an object to communicate with the LCD and when i use the Write Command, nothing shows up.
does anyone have an idea on how to fix this?
thank u!

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