Slashdev Support Forum

A place to ask questions about projects and posts on the Slashdev blog.

1. jkittle99
   Member

   Seriously?

   Ok so let me be the first, then. I'm using Arduino 17 on a mac. The library works fine.

   I've wired up a 2x16 Winstar WH1602B display (it has an RGB backlight - mega cool) and I'm running in 4 bit mode. Hello world works fine on line 1, but nothing goes to line 2. Why is "move_to" not highlighted?

   My complete code:

   /*
   * Simple hello world program in 4 pin mode.
   */
   #include <Lcd.h>

   // LCD module is 16 columns wide, use 4 pin mode
   Lcd lcd = Lcd(16, FUNCTION_4BIT);

   char msg[] = "Hello, World!";

   void setup()
   {
   // for the sake of demonstration change pin assignment
   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(); // setup arduino and initialize LCD
   lcd.move_to(1,2);
   lcd.print("Line 2");

   }

   void loop()
   {
   lcd.home(); // return cursor to home possition
   lcd.print(msg); // print the ever so familiar message
   }

   Posted 8 months ago #

2. jiggak
   Key Master

   First let me apologize for not replying sooner. I just setup this forum and have not yet figured out how to get emails sent to me when someone posts!

   I think your problem is in the Lcd constructor, try this:
   

   #include <Lcd.h>
   
   // LCD module is 16 columns wide, 4 pin mode, 2 lines
   Lcd lcd = Lcd(16, FUNCTION_4BIT | FUNCTION_2LINE);
   
   void setup()
   {
      // for the sake of demonstration change pin assignment
      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(); // setup arduino and initialize LCD
   }
   
   void loop()
   {
      lcd.home();
      lcd.print("Line 1");
      lcd.move_to(1, 2);
      lcd.print("Line 2");
   }

   Posted 7 months ago #

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