Arduino IC LCD displays are blurred

Hi guys I really need help with my LCD display because the LCD characters are blurred, I buy it today atleast 2 of it but all of the display are blurred not clear.

The connections I have follow is :

GND - gnd pin
SDA - A4 pin
SCL - A5 pin

Please help me thanks.

Your post was MOVED to its current location as it is more suitable.

What made you think that it is a tutorial ?

Hi @pressxx,

On the back of your I2C LCDs, there should be a trimmer potentiometer. Turn it until the actual text/numbers appear on your screen. But if you turn it too much, nothing will be on the screen at all.


Thank you for your help now it's working and I can see the text clearly. Thanks

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