Hello, this is my first post on the Arduino forms, so please go easy on me. I started learning the Adruino 2 years ago and since then I have built many projects with great success, thanks to these forms and Google; however, I am stuck now.
I just bought the LCD4884 shield and I cannot get it working no matter what I do.
I have installed the library for the LCD4884 and everything uploads just fine and my backlight turns on but text is not displayed. I have tried previous versions of the IDE but nothing seems to work, its almost like the contrast is too low and I do not know how to change it.
#include <LCD4884.h>
int z=0;
int dd=200;
void setup()
{
lcd.LCD_init(); // creates instance of LCD
lcd.LCD_clear(); // blanks the display
pinMode(7, OUTPUT);
}
void loop()
{ // first some text display
lcd.LCD_write_string(0,0,"01234567980123", MENU_NORMAL);
delay(1000);
for (int a=0; a<5; a++)
{
digitalWrite(7, LOW);
delay(300);
digitalWrite(7, HIGH);
delay(300);
}
for (int a=0; a<6; a++)
{
lcd.LCD_write_string(0,a,"01234567980123", MENU_NORMAL); // ignore MENU_NORMAL for now
delay(dd);
}
delay(dd);
lcd.LCD_clear(); // blanks the display
delay(500);
lcd.LCD_write_string_big(0, 0, "012345", MENU_NORMAL);
lcd.LCD_write_string_big(0, 3, "-+-+-+", MENU_NORMAL);
delay(1000);
lcd.LCD_clear(); // now to read the joystick using analogRead(0). Press RESET whien finished
do
{
z=analogRead(0);
if (z==0)
{
lcd.LCD_write_string(2,2,"Down", MENU_NORMAL);
}
else
if (z>0 && z<150)
{
lcd.LCD_write_string(2,2,"OK ", MENU_NORMAL);
delay(dd);
}
else
if (z>150 && z<350)
{
lcd.LCD_write_string(2,2,"Right", MENU_NORMAL);
delay(dd);
}
else
if (z>350 && z<510)
{
lcd.LCD_write_string(2,2,"Up ", MENU_NORMAL);
delay(dd);
}
else
if (z>510 && z<750)
{
lcd.LCD_write_string(2,2,"Left ", MENU_NORMAL);
delay(dd);
}
else
if (z>750)
{
lcd.LCD_write_string(2,2,"nil ", MENU_NORMAL);
delay(dd);
}
}
while (1>0);
}
I have tried many different example sketches with no luck, I am starting to think I should have purchased a different LCD screen.
Any suggestions or tips would be greatly appreciated.
Thanks.
