I want connect arduino uno with 20×4 white-on-blue LCD display.
Please , help me.
Thank you very much
Falcon
Hello.
It sounds like you are referring to our white on blue 20x4 character LCD, which uses the common HD44780 interface. The following tutorial from the Arduino website describes how to use that interface:
arduino.cc/en/Tutorial/LiquidCrystalDisplay
-Jon
Yes, it is your LCD display.
Thank you very much
Falcon