diff options
Diffstat (limited to 'lib/LiquidCrystal/examples/Scroll/Scroll.ino')
-rw-r--r-- | lib/LiquidCrystal/examples/Scroll/Scroll.ino | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/lib/LiquidCrystal/examples/Scroll/Scroll.ino b/lib/LiquidCrystal/examples/Scroll/Scroll.ino new file mode 100644 index 0000000..0da976d --- /dev/null +++ b/lib/LiquidCrystal/examples/Scroll/Scroll.ino @@ -0,0 +1,95 @@ +/* + 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 pin Connect to + --------------------------------- + 01 - GND GND, pot + 02 - VCC +5V, pot + 03 - Contrast Pot wiper + 04 - RS Pin8 (P2.0) + 05 - R/W GND + 06 - EN Pin9 (P2.1) + 07 - DB0 GND + 08 - DB1 GND + 09 - DB2 GND + 10 - DB3 GND + 11 - DB4 Pin10 (P2.2) + 12 - DB5 Pin11 (P2.3) + 13 - DB6 Pin12 (P2.4) + 14 - DB7 Pin13 (P2.5) + 15 - BL+ +5V + 16 - BL- GND + ================================= + + 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://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(P2_0, P2_1, P2_2, P2_3, P2_4, P2_5); + +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); + +} + |