68 lines
1.8 KiB
Text
68 lines
1.8 KiB
Text
/*
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LiquidCrystal Library - setCursor
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Demonstrates the use a 16x2 LCD display. The LiquidCrystal
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library works with all LCD displays that are compatible with the
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Hitachi HD44780 driver. There are many of them out there, and you
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can usually tell them by the 16-pin interface.
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This sketch prints to all the positions of the LCD using the
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setCursor(0 method:
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The circuit:
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* LCD RS pin to digital pin 12
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* LCD Enable pin to digital pin 11
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* LCD D4 pin to digital pin 5
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* LCD D5 pin to digital pin 4
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* LCD D6 pin to digital pin 3
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* LCD D7 pin to digital pin 2
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* 10K resistor:
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* ends to +5V and ground
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* wiper to LCD VO pin (pin 3)
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Library originally added 18 Apr 2008
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by David A. Mellis
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library modified 5 Jul 2009
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by Limor Fried (http://www.ladyada.net)
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example added 9 Jul 2009
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by Tom Igoe
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modified 25 July 2009
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by David A. Mellis
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http://www.arduino.cc/en/Tutorial/LiquidCrystal
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*/
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// include the library code:
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#include <LiquidCrystal.h>
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// these constants won't change. But you can change the size of
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// your LCD using them:
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const int numRows = 2;
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const int numCols = 16;
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// initialize the library with the numbers of the interface pins
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LiquidCrystal lcd(12, 11, 5, 4, 3, 2);
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void setup() {
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// set up the LCD's number of rows and columns:
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lcd.begin(numRows, numCols);
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}
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void loop() {
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// loop from ASCII 'a' to ASCII 'z':
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for (int thisLetter = 'a'; thisLetter <= 'z'; thisLetter++) {
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// loop over the columns:
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for (int thisCol = 0; thisCol < numRows; thisCol++) {
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// loop over the rows:
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for (int thisRow = 0; thisRow < numCols; thisRow++) {
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// set the cursor position:
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lcd.setCursor(thisRow,thisCol);
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// print the letter:
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lcd.print(thisLetter, BYTE);
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delay(200);
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}
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}
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}
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}
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