diff options
| author | Jesse Morgan <jesse@jesterpm.net> | 2011-10-20 22:16:19 -0700 |
|---|---|---|
| committer | Jesse Morgan <jesse@jesterpm.net> | 2011-10-20 22:16:19 -0700 |
| commit | fc944ff979dbbd49a57722fe2d1d2acf47312eb4 (patch) | |
| tree | 38cc3a5c5c8f24f55068fc4ffa73d018169fc2df /libraries/LiquidCrystal/examples/Scroll/Scroll.pde | |
Inital commit... halfway through the project
Diffstat (limited to 'libraries/LiquidCrystal/examples/Scroll/Scroll.pde')
| -rw-r--r-- | libraries/LiquidCrystal/examples/Scroll/Scroll.pde | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/libraries/LiquidCrystal/examples/Scroll/Scroll.pde b/libraries/LiquidCrystal/examples/Scroll/Scroll.pde new file mode 100644 index 0000000..a1525ff --- /dev/null +++ b/libraries/LiquidCrystal/examples/Scroll/Scroll.pde @@ -0,0 +1,85 @@ +/*
+ 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://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, 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);
+
+}
+
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