Hi 
!
I have recently tried to use a LCD screen to do an alarm clock (the screen is just to show the time), but I have a big problem :
My screen don't work.
I've tried a lot of solutions, like just trying to print simple things like "hello world" or changing the backlight, but anything worked.
This is a bit of my code (for Arduino MEGA 2560) :
#include <LiquidCrystal.h>
LiquidCrystal lcd(12, 11, 5, 4, 3, 2);
void setup() {
lcd.begin(16, 2);
lcd.cursor();
lcd.blink();
lcd.print("ALARM");
}
void loop() {
}
Even if I'm a newbie, I have just made that code with parts of pro's videos and it WORKED, so I don't know why, with me, it's not OK.
I hope that you'll help me to find the solution.
PS : My LCD screen is blue, not green.