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Diffstat (limited to 'libraries/LiquidCrystal/examples/Scroll')
| -rw-r--r-- | libraries/LiquidCrystal/examples/Scroll/Scroll.ino | 86 | 
1 files changed, 86 insertions, 0 deletions
| diff --git a/libraries/LiquidCrystal/examples/Scroll/Scroll.ino b/libraries/LiquidCrystal/examples/Scroll/Scroll.ino new file mode 100644 index 0000000..0d6d8dc --- /dev/null +++ b/libraries/LiquidCrystal/examples/Scroll/Scroll.ino @@ -0,0 +1,86 @@ +/* +  LiquidCrystal Library - scrollDisplayLeft() and scrollDisplayRight() +  + 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 uses the + scrollDisplayLeft() and scrollDisplayRight() methods to scroll + the text. +  +  The circuit: + * 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 + * LCD R/W pin to ground + * 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 (http://www.ladyada.net) + example added 9 Jul 2009 + by Tom Igoe  + modified 22 Nov 2010 + by Tom Igoe +  + This example code is in the public domain. +  + http://arduino.cc/en/Tutorial/LiquidCrystalScroll + + */ + +// include the library code: +#include <LiquidCrystal.h> + +// initialize the library with the numbers of the interface pins +LiquidCrystal lcd(12, 11, 5, 4, 3, 2); + +void setup() { +  // set up the LCD's number of columns and rows:  +  lcd.begin(16, 2); +  // Print a message to the LCD. +  lcd.print("hello, world!"); +  delay(1000); +} + +void loop() { +  // scroll 13 positions (string length) to the left  +  // to move it offscreen left: +  for (int positionCounter = 0; positionCounter < 13; positionCounter++) { +    // scroll one position left: +    lcd.scrollDisplayLeft();  +    // wait a bit: +    delay(150); +  } + +  // scroll 29 positions (string length + display length) to the right +  // to move it offscreen right: +  for (int positionCounter = 0; positionCounter < 29; positionCounter++) { +    // scroll one position right: +    lcd.scrollDisplayRight();  +    // wait a bit: +    delay(150); +  } +   +    // scroll 16 positions (display length + string length) to the left +    // to move it back to center: +  for (int positionCounter = 0; positionCounter < 16; positionCounter++) { +    // scroll one position left: +    lcd.scrollDisplayLeft();  +    // wait a bit: +    delay(150); +  } +   +  // delay at the end of the full loop: +  delay(1000); + +} + | 
