mirror of
https://github.com/arduino/Arduino.git
synced 2024-12-04 15:24:12 +01:00
73 lines
1.8 KiB
C++
73 lines
1.8 KiB
C++
/*
|
|
LiquidCrystal Library - setCursor
|
|
|
|
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 to all the positions of the LCD using the
|
|
setCursor(0 method:
|
|
|
|
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/LiquidCrystalSetCursor
|
|
|
|
*/
|
|
|
|
// include the library code:
|
|
#include <LiquidCrystal.h>
|
|
|
|
// these constants won't change. But you can change the size of
|
|
// your LCD using them:
|
|
const int numRows = 2;
|
|
const int numCols = 16;
|
|
|
|
// 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(numCols,numRows);
|
|
}
|
|
|
|
void loop() {
|
|
// loop from ASCII 'a' to ASCII 'z':
|
|
for (int thisLetter = 'a'; thisLetter <= 'z'; thisLetter++) {
|
|
// loop over the columns:
|
|
for (int thisCol = 0; thisCol < numRows; thisCol++) {
|
|
// loop over the rows:
|
|
for (int thisRow = 0; thisRow < numCols; thisRow++) {
|
|
// set the cursor position:
|
|
lcd.setCursor(thisRow,thisCol);
|
|
// print the letter:
|
|
lcd.write(thisLetter);
|
|
delay(200);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|