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1. socaldt
   Member

   Hey Jiggak,

   I know you have stop updating your library, but hopefully you still check this forum.
   I found your library and it works for me.
   However, I tried to scroll my text but no luck.
   It scrolls but it appears pixelated.
   If I do not use any delays, the the message would just flash by the LCD.
   It looks like it is not fast enough. I can see the old character before it gets update with the new one.

   Has this happened before? I tried it on both of my LCD but it is the same.

   I used lcd.entry_mode(ENTRY_SHIFT); and tried to display it using lcd.print(msg);. I also tried for-looping it, but neither mode can display the message without distorting.

   Any suggestions would be appreciated.

   Thanks!

   David

   Posted 5 months ago #

2. jiggak
   Key Master

   Hi David,

   Can you post your code so I can have a look?

   Posted 5 months ago #

3. socaldt
   Member

   #include <Lcd.h>
   #include <ShiftOut.h>
   int i = 0;
   char msg[] = "Happy Birthday Joanna Woo!";

   ShiftOut sOut(8, 12, 11, 1);
   Lcd lcd = Lcd(16, FUNCTION_4BIT | FUNCTION_1LINE | FUNCTION_5x11, &sOut);

   void setup()
   {
   lcd.set_ctrl_pins(CTRLPINS(1,2,3)); // RS->1, RW->2, E->3
   lcd.set_data_pins(_4PINS(4,5,6,7)); // D4->4, D5->5, D6->6, D7->7

   lcd.setup();
   //lcd.display(DISPLAY_ON | DISPLAY_NOCURSOR | DISPLAY_NOBLINK);
   //lcd.entry_mode(ENTRY_CURSOR_DEC | ENTRY_SHIFT);
   lcd.entry_mode(ENTRY_SHIFT);
   //lcd.shift(SHIFT_SCREEN | SHIFT_LEFT);
   //lcd.shift(SHIFT_LEFT);

   lcd.clear();
   }

   void loop()
   {
   lcd.move_to(17,1); // Start from right most position
   i=0;
   while (msg[i]!=''){
   lcd.print(msg[i++]);
   delay(300); // If I don't have this delay, the delay scrolls really fast
   }
   delay(1000);
   lcd.clear(); // Clear LCD
   }

   The code works, but like I have described, the transition while scrolling is very illegible.

   Posted 5 months ago #

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