Tutorial.LiquidCrystalAutoscroll History

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April 09, 2013, at 06:07 PM by Federico -
Added line 19:
* pin headers to solder to the LCD display pins
Added line 28:
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 75:
December 10, 2012, at 04:14 PM by Scott Fitzgerald -
Changed line 27 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 04:37 AM by Scott Fitzgerald -
Changed lines 49-50 from:
(:source http://arduino.cc/en/pub/code/master/libraries/LiquidCrystal/examples/Autoscroll/Autoscroll.pde lang=arduino tabwidth=4:)
to:
(:source http://arduino.cc/en/pub/code/master/libraries/LiquidCrystal/examples/Autoscroll/Autoscroll.ino lang=arduino tabwidth=4:)
September 24, 2010, at 05:51 AM by Tom Igoe -
Changed line 60 from:
* [[Reference/LiquidClear| @@lcd.clear()@@]]
to:
* [[Reference/LiquidCrystalClear| @@lcd.clear()@@]]
September 24, 2010, at 05:51 AM by Tom Igoe -
Changed lines 58-59 from:
* [[Reference/LiquidCrystalAutoScroll| @@lcd.autoscroll()@@]]
* [[Reference/LiquidCrystalNoAutoScroll| @@lcd.noAutoscroll()@@]]
to:
* [[Reference/LiquidCrystalAutoscroll| @@lcd.autoscroll()@@]]
* [[Reference/LiquidCrystalNoAutoscroll| @@lcd.noAutoscroll()@@]]
September 23, 2010, at 10:50 PM by Christian Cerrito -
Changed lines 3-4 from:
!!LiquidCrystal - autoscroll()
to:
!!!LiquidCrystal - autoscroll()
September 21, 2010, at 11:28 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 55-62:
* [[Reference/LiquidCrystalBegin | @@lcd.begin()@@]]
* [[Reference/LiquidCrystalPrint | @@lcd.print()@@]]
* [[Reference/LiquidCrystalSetCursor| @@lcd.setCursor()@@]]
* [[Reference/LiquidCrystalAutoScroll| @@lcd.autoscroll()@@]]
* [[Reference/LiquidCrystalNoAutoScroll| @@lcd.noAutoscroll()@@]]
* [[Reference/LiquidClear| @@lcd.clear()@@]]
* [[Reference/For | @@for()@@]]
Changed lines 70-71 from:
* [[LiquidCrystalAutoscroll | Autoscroll]]: shift text right and left.
to:




September 21, 2010, at 09:05 AM by Christian Cerrito -
Changed line 36 from:
Additionally, wire a 10K pot to +5V and GND, with it's wiper (output) to LCD screens VO pin (pin3).
to:
Additionally, wire a 10K pot to +5V and GND, with it's wiper (output) to the LCD screen's VO pin (pin3).
September 21, 2010, at 09:04 AM by Christian Cerrito -
Changed lines 15-16 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 51-63 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 12:33 AM by Tom Igoe -
Changed lines 19-20 from:
(:source http://arduino.cc/en/pub/code/master/libraries/LiquidCrystal/examples/AutoScroll/AutoScroll.pde lang=arduino tabwidth=4:)
to:
(:source http://arduino.cc/en/pub/code/master/libraries/LiquidCrystal/examples/Autoscroll/Autoscroll.pde lang=arduino tabwidth=4:)
February 09, 2010, at 12:33 AM by Tom Igoe -
Changed lines 19-90 from:

%color=#7e7e7e%/*
%color=#7e7e7e% LiquidCrystal Library - Autoscroll
%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 demonstrates the use of the autoscroll()
%color=#7e7e7e% and noAutoscroll() functions to make new text scroll or not.
%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 columns and rows:
lcd.%color=#cc6600%begin%%(16,2);
}

%color=#cc6600%void%% %color=#cc6600%'''loop'''%%() {
%color=#7e7e7e%// set the cursor to (0,0):
lcd.%color=#cc6600%setCursor%%(0, 0);
%color=#7e7e7e%// print from 0 to 9:
%color=#cc6600%for%% (%color=#cc6600%int%% thisChar = 0; thisChar < 10; thisChar++) {
lcd.%color=#cc6600%print%%(thisChar);
%color=#cc6600%delay%%(500);
}

%color=#7e7e7e%// set the cursor to (16,1):
lcd.%color=#cc6600%setCursor%%(16,1);
%color=#7e7e7e%// set the display to automatically scroll:
lcd.%color=#cc6600%autoscroll%%();
%color=#7e7e7e%// print from 0 to 9:
%color=#cc6600%for%% (%color=#cc6600%int%% thisChar = 0; thisChar < 10; thisChar++) {
lcd.%color=#cc6600%print%%(thisChar);
%color=#cc6600%delay%%(500);
}
%color=#7e7e7e%// turn off automatic scrolling
lcd.%color=#cc6600%noAutoscroll%%();

%color=#7e7e7e%// clear screen for the next loop:
lcd.%color=#cc6600%clear%%();
}

to:
(:source http://arduino.cc/en/pub/code/master/libraries/LiquidCrystal/examples/AutoScroll/AutoScroll.pde lang=arduino tabwidth=4:)
August 05, 2009, at 05:06 PM by Tom Igoe -
Changed lines 13-14 from:
This sketch prints the characters @0@ to @9@ with autoscroll off, then moves the cursor to the bottom right, turns autoscroll on, and prints them again.
to:
This sketch prints the characters @@0@@ to @@9@@ with autoscroll off, then moves the cursor to the bottom right, turns autoscroll on, and prints them again.
August 05, 2009, at 05:05 PM by Tom Igoe -
Changed lines 3-4 from:
!!LiquidCrystal - scrollDisplayLeft() and scrollDisplayRight()
to:
!!LiquidCrystal - autoscroll()
Changed lines 7-14 from:
This example sketch shows how to use the scrollDisplayLeft() and scrollDisplayRight() methods to move all the text on the display left or right.

@@scrollDisplayLeft()@@ moves all the text one space to the left

@@scrollDisplayRight()@@ moves all the text one space to the right

This sketch prints "hello world!", then scrolls it left, then right.
to:
This example sketch shows how to use the autoscroll() and noAutoscroll() methods to move all the text on the display left or right.

@@autoscroll()@@ moves all the text one space to the left each time a letter is added

@@noAutoscroll()@@ turns scrolling off

This sketch prints the characters @0@ to @9@ with autoscroll off, then moves the cursor to the bottom right, turns autoscroll on, and prints them again.
Deleted line 17:
Changed line 21 from:
%color=#7e7e7e% LiquidCrystal Library - scrollDisplayLeft() and scrollDisplayRight()
to:
%color=#7e7e7e% LiquidCrystal Library - Autoscroll
Changed lines 28-30 from:
%color=#7e7e7e% This sketch prints "Hello World!" to the LCD and uses the
%color=#7e7e7e% scrollDisplayLeft() and scrollDisplayRight() methods to scroll
%color=#7e7e7e% the text.
to:
%color=#7e7e7e% This sketch demonstrates the use of the autoscroll()
%color=#7e7e7e% and noAutoscroll() functions to make new text scroll or not.
Changed line 31 from:
%color=#7e7e7e% The circuit:
to:
%color=#7e7e7e% The circuit:
Added lines 48-49:
%color=#7e7e7e% modified 25 July 2009
%color=#7e7e7e% by David A. Mellis
Changed line 55 from:
#include <LiquidCrystal.h>
to:
#include <%color=#cc6600%LiquidCrystal%%.h>
Changed line 58 from:
LiquidCrystal lcd(12, 11, 5, 4, 3, 2);
to:
%color=#cc6600%LiquidCrystal%% lcd(12, 11, 5, 4, 3, 2);
Changed lines 61-65 from:
%color=#7e7e7e%// set up the LCD's number of rows and columns:
lcd.%color=#cc6600%begin%%(2, 16);
lcd.setCursor(0,7);
%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 columns and rows:
lcd.%color=#cc6600%begin%%(16,2);
Changed lines 66-71 from:
%color=#7e7e7e%// scroll 27 positions (display length + string length) to the left:
%color=#cc6600%for%% (%color=#cc6600%int%% positionCounter = 0; positionCounter < 27; positionCounter++) {
%color=#7e7e7e%// scroll one position left:
lcd.scrollDisplayLeft();
%color=#7e7e7e%// wait a bit:
%color=#cc6600%delay%%(200);
to:
%color=#7e7e7e%// set the cursor to (0,0):
lcd.%color=#cc6600%setCursor%%(0, 0);
%color=#7e7e7e%// print from 0 to 9:
%color=#cc6600%for%% (%color=#cc6600%int%% thisChar = 0; thisChar < 10; thisChar++) {
lcd.%color=#cc6600%print%%(thisChar);
%color=#cc6600%delay%%(500);
Changed lines 74-79 from:
%color=#7e7e7e%// scroll 27 positions (display length + string length) to the right:
%color=#cc6600%for%% (%color=#cc6600%int%% positionCounter = 0; positionCounter < 27; positionCounter++) {
%color=#7e7e7e%// scroll one position right:
lcd.scrollDisplayRight();
%color=#7e7e7e%// wait a bit:
%color=#cc6600%delay%%(200);
to:
%color=#7e7e7e%// set the cursor to (16,1):
lcd.%color=#cc6600%setCursor%%(16,1);
%color=#7e7e7e%// set the display to automatically scroll:
lcd.%color=#cc6600%autoscroll%%();
%color=#7e7e7e%// print from 0 to 9:
%color=#cc6600%for%% (%color=#cc6600%int%% thisChar = 0; thisChar < 10; thisChar++) {
lcd.%color=#cc6600%print%%(thisChar);
%color=#cc6600%delay%%(500);
Added lines 83-87:
%color=#7e7e7e%// turn off automatic scrolling
lcd.%color=#cc6600%noAutoscroll%%();

%color=#7e7e7e%// clear screen for the next loop:
lcd.%color=#cc6600%clear%%();
Added line 90:
July 09, 2009, at 10:03 PM by Tom Igoe -
Changed lines 35-36 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 47-48 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
Changed line 58 from:
LiquidCrystal lcd(12, 11, 10, 5, 4, 3, 2);
to:
LiquidCrystal lcd(12, 11, 5, 4, 3, 2);
Changed line 61 from:
%color=#7e7e7e%// set up the LCD's number of columns and rows:
to:
%color=#7e7e7e%// set up the LCD's number of rows and columns:
July 08, 2009, at 08:54 PM by Tom Igoe -
Added lines 1-87:
''Examples > Libraries > LiquidCrystal''

!!LiquidCrystal - scrollDisplayLeft() and scrollDisplayRight()

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 scrollDisplayLeft() and scrollDisplayRight() methods to move all the text on the display left or right.

@@scrollDisplayLeft()@@ moves all the text one space to the left

@@scrollDisplayRight()@@ moves all the text one space to the right

This sketch prints "hello world!", then scrolls it left, then right.

(:include LiquidCrystalCircuit :)

!!!Code

(:div class=code :)

%color=#7e7e7e%/*
%color=#7e7e7e% LiquidCrystal Library - scrollDisplayLeft() and scrollDisplayRight()
%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 uses the
%color=#7e7e7e% scrollDisplayLeft() and scrollDisplayRight() methods to scroll
%color=#7e7e7e% the text.
%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);
lcd.setCursor(0,7);
%color=#7e7e7e%// Print a message to the LCD.
lcd.%color=#cc6600%print%%(%color=#006699%"hello, world!"%%);
}

%color=#cc6600%void%% %color=#cc6600%'''loop'''%%() {
%color=#7e7e7e%// scroll 27 positions (display length + string length) to the left:
%color=#cc6600%for%% (%color=#cc6600%int%% positionCounter = 0; positionCounter < 27; positionCounter++) {
%color=#7e7e7e%// scroll one position left:
lcd.scrollDisplayLeft();
%color=#7e7e7e%// wait a bit:
%color=#cc6600%delay%%(200);
}

%color=#7e7e7e%// scroll 27 positions (display length + string length) to the right:
%color=#cc6600%for%% (%color=#cc6600%int%% positionCounter = 0; positionCounter < 27; positionCounter++) {
%color=#7e7e7e%// scroll one position right:
lcd.scrollDisplayRight();
%color=#7e7e7e%// wait a bit:
%color=#cc6600%delay%%(200);
}
}

(:divend:)

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