Hi,
I have plugged in a 20x4 LCD, 3 buttons with the Arduino Atmega1280.
1.Button to press the cursor move up and select the line
2.Button to press the cursor move down and select the line
3. When will the press 3.Press the string contained in the selected line as a function called and executed.
Is there a function for it or i must to implement it new?
In advance I thank you and look forward to your feedback.
Greetings
Is there a function for it or i must to implement it new?
You get to develop the function. Keep in mind that the LCD just consists of a bunch of pixels, and that you can not read what is displayed on it. You must keep track of what you have written to it, and where you have moved the cursor to (as a result of each button press), and "select" that range of characters from your cache.
Hey, if all you need is a menu or a list,not really, I just did it. It's on 16X2 but if you don't mind having top do something say menu and bottom do something else, it's perfect. I'll think about 20*4 display later, too big 
