Tutorial.LiquidCrystalCursor History

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April 09, 2013, at 06:03 PM by Federico -
Added line 13:
* pin headers to solder to the LCD display pins
Added line 22:
Before wiring the LCD screen to your Arduino we suggest to solder a pin header strip to the 14 (or 16) pin count connector of the LCD screen, as you can see in the image above.\\
Deleted line 67:
December 10, 2012, at 04:13 PM by Scott Fitzgerald -
Changed line 21 from:
To wire your LED screen to your Arduino, connect the following pins:
to:
To wire your LCD screen to your Arduino, connect the following pins:
November 16, 2011, at 04:36 AM by Scott Fitzgerald -
Changed lines 44-45 from:
(:source http://arduino.cc/en/pub/code/master/libraries/LiquidCrystal/examples/Cursor/Cursor.pde lang=arduino tabwidth=4:)
to:
(:source http://arduino.cc/en/pub/code/master/libraries/LiquidCrystal/examples/Cursor/Cursor.ino lang=arduino tabwidth=4:)
September 23, 2010, at 10:48 PM by Christian Cerrito -
Changed lines 5-6 from:
The [[Reference/LiquidCrystal | '''Liquid Crystal 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.
to:
The [[Reference/LiquidCrystal | '''Liquid Crystal 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.
September 23, 2010, at 10:48 PM by Christian Cerrito -
Changed lines 3-4 from:
!!LiquidCrystal - cursor() and noCursor()
to:
!!!LiquidCrystal - cursor() and noCursor()
September 21, 2010, at 10:50 PM by Christian Cerrito -
Added lines 64-66:


September 21, 2010, at 10:49 PM by Christian Cerrito -
Added line 56:
* [[Reference/LiquidCrystal | Liquid Crystal Library]]
Deleted line 57:
* [[LiquidCrystalCursor | Cursor]]: control of the underscore-style cursor.
September 21, 2010, at 10:48 PM by Christian Cerrito -
Changed lines 5-6 from:
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.
to:
The [[Reference/LiquidCrystal | '''Liquid Crystal 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.
Added lines 51-55:
* [[Reference/LiquidCrystalBegin | @@lcd.begin()@@]]
* [[Reference/LiquidCrystalPrint | @@lcd.print()@@]]
* [[Reference/LiquidCrystalCursor| @@lcd.Cursor()@@]]
* [[Reference/LiquidCrystalNoCursor | @@lcd.NoCursor()@@]]
September 21, 2010, at 08:56 AM by Christian Cerrito -
Changed lines 9-11 from:

(:include LiquidCrystalCircuit :)
to:
(:div class=BOM :)
!!!Hardware Required
* Arduino Board
* LCD Screen (compatible with Hitachi HD44780 driver)
* 10k Potentiometer
* breadboard
* hook-up wire

(:divend:)

!!!Circuit
(:div class=circuit :)
To wire your LED screen to your Arduino, connect the following pins:

* LCD RS pin to digital pin 12
* LCD Enable pin to digital pin 11
* 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

Additionally, wire a 10K pot to +5V and GND, with it's wiper (output) to LCD screens VO pin (pin3).

[-click the images to enlarge-]

%height=300px%[[Attach:LCD_bb.png | Attach:LCD_bb.png]]
[-image developed using [[http://www.fritzing.org |Fritzing]]. For more circuit examples, see the [[http://fritzing.org/projects/|Fritzing project page]] -]

%height=300px%[[Attach:LCD_schem.png | Attach:LCD_schem.png]]

(:divend:)

Changed lines 46-58 from:
(:divend:)
to:
(:divend:)


!!!See Also:

* [[LiquidCrystalBlink | Blink]]: control of the block-style cursor.
* [[LiquidCrystalCursor | Cursor]]: control of the underscore-style cursor.
* [[LiquidCrystalDisplay| Display]]: quickly blank the display without losing what's on it.
* [[LiquidCrystalTextDirection | TextDirection]]: control which way text flows from the cursor.
* [[LiquidCrystalScroll| Scroll]]: scroll text left and right.
* [[LiquidCrystalSerial |Serial input]]: accepts serial input, displays it.
* [[LiquidCrystalSetCursor| SetCursor]]: set the cursor position.
* [[LiquidCrystalAutoscroll | Autoscroll]]: shift text right and left.
February 09, 2010, at 12:24 AM by Tom Igoe -
February 09, 2010, at 12:22 AM by Tom Igoe -
Changed lines 14-73 from:

%color=#7e7e7e%/*
%color=#7e7e7e% LiquidCrystal Library - Cursor
%color=#7e7e7e%
%color=#7e7e7e% Demonstrates the use a 16x2 LCD display. The LiquidCrystal
%color=#7e7e7e% library works with all LCD displays that are compatible with the
%color=#7e7e7e% Hitachi HD44780 driver. There are many of them out there, and you
%color=#7e7e7e% can usually tell them by the 16-pin interface.
%color=#7e7e7e%
%color=#7e7e7e% This sketch prints "Hello World!" to the LCD and
%color=#7e7e7e% uses the cursor() and noCursor() methods to turn
%color=#7e7e7e% on and off the cursor.
%color=#7e7e7e%
%color=#7e7e7e% The circuit:
%color=#7e7e7e% * LCD RS pin to digital pin 12
%color=#7e7e7e% * LCD Enable pin to digital pin 11
%color=#7e7e7e% * LCD D4 pin to digital pin 5
%color=#7e7e7e% * LCD D5 pin to digital pin 4
%color=#7e7e7e% * LCD D6 pin to digital pin 3
%color=#7e7e7e% * LCD D7 pin to digital pin 2
%color=#7e7e7e% * 10K resistor:
%color=#7e7e7e% * ends to +5V and ground
%color=#7e7e7e% * wiper to LCD VO pin (pin 3)
%color=#7e7e7e%
%color=#7e7e7e% Library originally added 18 Apr 2008
%color=#7e7e7e% by David A. Mellis
%color=#7e7e7e% library modified 5 Jul 2009
%color=#7e7e7e% by Limor Fried (http://www.ladyada.net)
%color=#7e7e7e% example added 9 Jul 2009
%color=#7e7e7e% by Tom Igoe
%color=#7e7e7e% modified 25 July 2009
%color=#7e7e7e% by David A. Mellis

%color=#7e7e7e%
%color=#7e7e7e% http://www.arduino.cc/en/Tutorial/LiquidCrystal
%color=#7e7e7e% */

%color=#7e7e7e%// include the library code:
#include <%color=#cc6600%LiquidCrystal%%.h>

%color=#7e7e7e%// initialize the library with the numbers of the interface pins
%color=#cc6600%LiquidCrystal%% lcd(12, 11, 5, 4, 3, 2);

%color=#cc6600%void%% %color=#cc6600%'''setup'''%%() {
%color=#7e7e7e%// set up the LCD's number of rows and columns:
lcd.%color=#cc6600%begin%%(16, 2);
%color=#7e7e7e%// Print a message to the LCD.
lcd.%color=#cc6600%print%%(%color=#006699%"hello, world!"%%);
}

%color=#cc6600%void%% %color=#cc6600%'''loop'''%%() {
%color=#7e7e7e%// Turn off the cursor:
lcd.%color=#cc6600%noCursor%%();
%color=#cc6600%delay%%(500);
%color=#7e7e7e%// Turn on the cursor:
lcd.%color=#cc6600%cursor%%();
%color=#cc6600%delay%%(500);
}

to:
(:source http://arduino.cc/en/pub/code/master/libraries/LiquidCrystal/examples/Cursor/Cursor.pde lang=arduino tabwidth=4:)
August 05, 2009, at 04:51 PM by Tom Igoe -
Added lines 44-46:
%color=#7e7e7e% modified 25 July 2009
%color=#7e7e7e% by David A. Mellis
Changed line 59 from:
lcd.%color=#cc6600%begin%%(2, 16);
to:
lcd.%color=#cc6600%begin%%(16, 2);
Changed lines 65-66 from:
%color=#7e7e7e%// Turn off the display:
lcd.noCursor();
to:
%color=#7e7e7e%// Turn off the cursor:
lcd.%color=#cc6600%noCursor%%();
Changed lines 68-69 from:
%color=#7e7e7e%// Turn on the display:
lcd.cursor();
to:
%color=#7e7e7e%// Turn on the cursor:
lcd.%color=#cc6600%cursor%%();
Added line 73:
July 25, 2009, at 02:20 PM by David A. Mellis -
Changed line 16 from:
%color=#7e7e7e% LiquidCrystal Library - setCursor
to:
%color=#7e7e7e% LiquidCrystal Library - Cursor
Changed lines 23-24 from:
%color=#7e7e7e% This sketch prints to all the positions of the LCD using the
%color=#7e7e7e% setCursor(0 method:
to:
%color=#7e7e7e% This sketch prints "Hello World!" to the LCD and
%color=#7e7e7e% uses the cursor() and noCursor() methods to turn
%color=#7e7e7e% on and off the cursor.
Changed line 27 from:
%color=#7e7e7e% The circuit:
to:
%color=#7e7e7e% The circuit:
Changed line 49 from:
#include <LiquidCrystal.h>
to:
#include <%color=#cc6600%LiquidCrystal%%.h>
Deleted lines 50-54:
%color=#7e7e7e%// these constants won't change. But you can change the size of
%color=#7e7e7e%// your LCD using them:
const %color=#cc6600%int%% numRows = 2;
const %color=#cc6600%int%% numCols = 16;
Changed line 52 from:
LiquidCrystal lcd(12, 11, 5, 4, 3, 2);
to:
%color=#cc6600%LiquidCrystal%% lcd(12, 11, 5, 4, 3, 2);
Changed lines 56-58 from:
lcd.%color=#cc6600%begin%%(numRows, numCols);
to:
lcd.%color=#cc6600%begin%%(2, 16);
%color=#7e7e7e%// Print a message to the LCD.
lcd.%color=#cc6600%print%%(%color=#006699%"hello, world!"%%);
Changed lines 62-75 from:
%color=#7e7e7e%// loop from ASCII 'a' to ASCII 'z':
%color=#cc6600%for%% (%color=#cc6600%int%% thisLetter = %color=#006699%'a'%%; thisLetter <= %color=#006699%'z'%%; thisLetter++) {
%color=#7e7e7e%// loop over the columns:
%color=#cc6600%for%% (%color=#cc6600%int%% thisCol = 0; thisCol < numRows; thisCol++) {
%color=#7e7e7e%// loop over the rows:
%color=#cc6600%for%% (%color=#cc6600%int%% thisRow = 0; thisRow < numCols; thisRow++) {
%color=#7e7e7e%// set the cursor position:
lcd.setCursor(thisRow,thisCol);
%color=#7e7e7e%// print the letter:
lcd.%color=#cc6600%print%%(thisLetter, %color=#006699%BYTE%%);
%color=#cc6600%delay%%(200);
}
}
}
to:
%color=#7e7e7e%// Turn off the display:
lcd.noCursor();
%color=#cc6600%delay%%(500);
%color=#7e7e7e%// Turn on the display:
lcd.cursor();
%color=#cc6600%delay%%(500);
Added line 69:
July 09, 2009, at 10:00 PM by Tom Igoe -
Changed line 16 from:
%color=#7e7e7e% LiquidCrystal Library - Cursor
to:
%color=#7e7e7e% LiquidCrystal Library - setCursor
Changed lines 23-25 from:
%color=#7e7e7e% This sketch prints "Hello World!" to the LCD and
%color=#7e7e7e% uses the cursor() and noCursor() methods to turn
%color=#7e7e7e% on and off the cursor.
to:
%color=#7e7e7e% This sketch prints to all the positions of the LCD using the
%color=#7e7e7e% setCursor(0 method:
Changed line 26 from:
%color=#7e7e7e% The circuit:
to:
%color=#7e7e7e% The circuit:
Changed lines 28-29 from:
%color=#7e7e7e% * LCD R/W pin to digital pin 11
%color=#7e7e7e% * LCD Enable pin to digital pin 10
to:
%color=#7e7e7e% * LCD Enable pin to digital pin 11
Changed lines 40-41 from:
%color=#7e7e7e% by Limor Fried
%color=#7e7e7e% example added 7 Jul 2009
to:
%color=#7e7e7e% by Limor Fried (http://www.ladyada.net)
%color=#7e7e7e% example added 9 Jul 2009
Added lines 50-54:
%color=#7e7e7e%// these constants won't change. But you can change the size of
%color=#7e7e7e%// your LCD using them:
const %color=#cc6600%int%% numRows = 2;
const %color=#cc6600%int%% numCols = 16;
Changed line 56 from:
LiquidCrystal lcd(12, 11, 10, 5, 4, 3, 2);
to:
LiquidCrystal lcd(12, 11, 5, 4, 3, 2);
Changed lines 59-62 from:
%color=#7e7e7e%// set up the LCD's number of columns and rows:
lcd.%color=#cc6600%begin%%(2, 16);
%color=#7e7e7e%// Print a message to the LCD.
lcd.%color=#cc6600%print%%(%color=#006699%"hello, world!"%%);
to:
%color=#7e7e7e%// set up the LCD's number of rows and columns:
lcd.%color=#cc6600%begin%%(numRows, numCols);
Changed lines 64-69 from:
%color=#7e7e7e%// Turn off the display:
lcd.noCursor();
%color=#cc6600%delay%%(500);
%color=#7e7e7e%// Turn on the display:
lcd.cursor();
%color=#cc6600%delay%%(500);
to:
%color=#7e7e7e%// loop from ASCII 'a' to ASCII 'z':
%color=#cc6600%for%% (%color=#cc6600%int%% thisLetter = %color=#006699%'a'%%; thisLetter <= %color=#006699%'z'%%; thisLetter++) {
%color=#7e7e7e%// loop over the columns:
%color=#cc6600%for%% (%color=#cc6600%int%% thisCol = 0; thisCol < numRows; thisCol++) {
%color=#7e7e7e%// loop over the rows:
%color=#cc6600%for%% (%color=#cc6600%int%% thisRow = 0; thisRow < numCols; thisRow++) {
%color=#7e7e7e%// set the cursor position:
lcd.setCursor(thisRow,thisCol);
%color=#7e7e7e%// print the letter:
lcd.%color=#cc6600%print%%(thisLetter, %color=#006699%BYTE%%);
%color=#cc6600%delay%%(200);
}
}
}
Deleted line 78:
July 08, 2009, at 08:14 PM by Tom Igoe -
Added lines 1-71:
''Examples > Libraries > LiquidCrystal''

!!LiquidCrystal - cursor() and noCursor()

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 cursor() and noCursor() methods to control an underscore-style cursor.


(:include LiquidCrystalCircuit :)

!!!Code
(:div class=code :)

%color=#7e7e7e%/*
%color=#7e7e7e% LiquidCrystal Library - Cursor
%color=#7e7e7e%
%color=#7e7e7e% Demonstrates the use a 16x2 LCD display. The LiquidCrystal
%color=#7e7e7e% library works with all LCD displays that are compatible with the
%color=#7e7e7e% Hitachi HD44780 driver. There are many of them out there, and you
%color=#7e7e7e% can usually tell them by the 16-pin interface.
%color=#7e7e7e%
%color=#7e7e7e% This sketch prints "Hello World!" to the LCD and
%color=#7e7e7e% uses the cursor() and noCursor() methods to turn
%color=#7e7e7e% on and off the cursor.
%color=#7e7e7e%
%color=#7e7e7e% The circuit:
%color=#7e7e7e% * LCD RS pin to digital pin 12
%color=#7e7e7e% * LCD R/W pin to digital pin 11
%color=#7e7e7e% * LCD Enable pin to digital pin 10
%color=#7e7e7e% * LCD D4 pin to digital pin 5
%color=#7e7e7e% * LCD D5 pin to digital pin 4
%color=#7e7e7e% * LCD D6 pin to digital pin 3
%color=#7e7e7e% * LCD D7 pin to digital pin 2
%color=#7e7e7e% * 10K resistor:
%color=#7e7e7e% * ends to +5V and ground
%color=#7e7e7e% * wiper to LCD VO pin (pin 3)
%color=#7e7e7e%
%color=#7e7e7e% Library originally added 18 Apr 2008
%color=#7e7e7e% by David A. Mellis
%color=#7e7e7e% library modified 5 Jul 2009
%color=#7e7e7e% by Limor Fried
%color=#7e7e7e% example added 7 Jul 2009
%color=#7e7e7e% by Tom Igoe
%color=#7e7e7e%
%color=#7e7e7e% http://www.arduino.cc/en/Tutorial/LiquidCrystal
%color=#7e7e7e% */

%color=#7e7e7e%// include the library code:
#include <LiquidCrystal.h>

%color=#7e7e7e%// initialize the library with the numbers of the interface pins
LiquidCrystal lcd(12, 11, 10, 5, 4, 3, 2);

%color=#cc6600%void%% %color=#cc6600%'''setup'''%%() {
%color=#7e7e7e%// set up the LCD's number of columns and rows:
lcd.%color=#cc6600%begin%%(2, 16);
%color=#7e7e7e%// Print a message to the LCD.
lcd.%color=#cc6600%print%%(%color=#006699%"hello, world!"%%);
}

%color=#cc6600%void%% %color=#cc6600%'''loop'''%%() {
%color=#7e7e7e%// Turn off the display:
lcd.noCursor();
%color=#cc6600%delay%%(500);
%color=#7e7e7e%// Turn on the display:
lcd.cursor();
%color=#cc6600%delay%%(500);
}

(:divend:)

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