I have connected an Lcd display(16*2) with an Lcd interface board to Arduino Uno.
I uploaded the blink program successfully but still the Lcd is blank.
Can anyone Please help me??
Show us your sketch, show us your schematic and wiring.
Please use code tags. Use the </> icon in the posting menu. [code] Paste sketch here. [/code]
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. . . with an Lcd interface board . . .
Presumably this refers to an I2C adapter bord of which there are many. They are all similar, but not identical and they all (should) come with a library. The libraries are all similar but not identical and not interchangable, even though they may have the same name. AARRGGHH
Please specify which adapter you are using, which library you are using, and how you arrived at the data for your 'constructor' (the stuff inside the parentheses in the LiquidCrystal_I2C lcd statement).
Don
Another typical issue is an improper soldering. So it would be helpful to have a picture of the connections between display and adapter.