Ejemplios > Libraries > LiquidCrystal

LiquidCrystal - blink() y noBlink() (Parapadea() y noParpadea())

La librería LiquidCrystal, te permite controlar pantallas LCD que son compatibles con el controlador Hitachi HD44780. Hay muchas de ellas ahí fuera, I puedes normalmente reconocerlas por que poseen una interfaz de 16 pines.

Este ejemplo muestra como usar las funciones blink() y noBlink() para parpadear un cursor.

Código

 (:includeurl http://arduino.googlecode.com/svn/trunk/libraries/LiquidCrystal/examples/Blink/Blink.pde border=0:)

  modified 25 July 2009
  by David A. Mellis

 #include <LiquidCrystal.h>

 LiquidCrystal lcd(12, 11, 5, 4, 3, 2);

   lcd.begin(16, 2);

   // Turn off the blinking cursor:
   lcd.noBlink();
   delay(3000);
    // Turn on the blinking cursor:
   lcd.blink();
   delay(3000);

  * LCD Enable pin to digital pin 11

  by Limor Fried (http://www.ladyada.net)
  example added 9 Jul 2009

 LiquidCrystal lcd(12, 11, 5, 4, 3, 2);

   // set up the LCD's number of rows and columns: 

Examples > Libraries > LiquidCrystal

LiquidCrystal - blink() and noBlink()

The LiquidCrystal library allows you to control LCD displays that are compatible with the Hitachi HD44780 driver. There are many of them out there, and you can usually tell them by the 16-pin interface.

This example sketch shows how to use the blink() and noBlink() methods to blink a block-style cursor.

(:include LiquidCrystalCircuit :)

Code

(:div class=code :)

 /*
   LiquidCrystal Library - Blink
  
  Demonstrates the use a 16x2 LCD display.  The LiquidCrystal
  library works with all LCD displays that are compatible with the 
  Hitachi HD44780 driver. There are many of them out there, and you
  can usually tell them by the 16-pin interface.
  
  This sketch prints "Hello World!" to the LCD and makes the 
  cursor block blink.
  
  The circuit:
  * LCD RS pin to digital pin 12
  * LCD R/W pin to digital pin 11
  * LCD Enable pin to digital pin 10
  * LCD D4 pin to digital pin 5
  * LCD D5 pin to digital pin 4
  * LCD D6 pin to digital pin 3
  * LCD D7 pin to digital pin 2
  * 10K resistor:
    * ends to +5V and ground
    * wiper to LCD VO pin (pin 3)
  
  Library originally added 18 Apr 2008
  by David A. Mellis
  library modified 5 Jul 2009
  by Limor Fried
  example added 7 Jul 2009
  by Tom Igoe 
  
  http://www.arduino.cc/en/Tutorial/LiquidCrystal
  
  */

 // include the library code:
 #include <LiquidCrystal.h>

 // initialize the library with the numbers of the interface pins
 LiquidCrystal lcd(12, 11, 10, 5, 4, 3, 2);

 void setup() {
   // set up the LCD's number of columns and rows: 
   lcd.begin(2, 16);
   // Print a message to the LCD.
   lcd.print("hello, world!");
 }

 void loop() {
   // Turn off the display:
   lcd.noBlink();
   delay(500);
   // Turn on the display:
   lcd.blink();
   delay(500);
 }

(:divend:)