source: rtos_arduino/trunk/arduino_lib/libraries/LiquidCrystal/examples/setCursor/setCursor.ino@ 136

Last change on this file since 136 was 136, checked in by ertl-honda, 8 years ago

ライブラリとOS及びベーシックなサンプルの追加.

File size: 1.8 KB
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1/*
2 LiquidCrystal Library - setCursor
3
4 Demonstrates the use a 16x2 LCD display. The LiquidCrystal
5 library works with all LCD displays that are compatible with the
6 Hitachi HD44780 driver. There are many of them out there, and you
7 can usually tell them by the 16-pin interface.
8
9 This sketch prints to all the positions of the LCD using the
10 setCursor(0 method:
11
12 The circuit:
13 * LCD RS pin to digital pin 12
14 * LCD Enable pin to digital pin 11
15 * LCD D4 pin to digital pin 5
16 * LCD D5 pin to digital pin 4
17 * LCD D6 pin to digital pin 3
18 * LCD D7 pin to digital pin 2
19 * LCD R/W pin to ground
20 * 10K resistor:
21 * ends to +5V and ground
22 * wiper to LCD VO pin (pin 3)
23
24 Library originally added 18 Apr 2008
25 by David A. Mellis
26 library modified 5 Jul 2009
27 by Limor Fried (http://www.ladyada.net)
28 example added 9 Jul 2009
29 by Tom Igoe
30 modified 22 Nov 2010
31 by Tom Igoe
32
33 This example code is in the public domain.
34
35 http://arduino.cc/en/Tutorial/LiquidCrystalSetCursor
36
37 */
38
39// include the library code:
40#include <LiquidCrystal.h>
41
42// these constants won't change. But you can change the size of
43// your LCD using them:
44const int numRows = 2;
45const int numCols = 16;
46
47// initialize the library with the numbers of the interface pins
48LiquidCrystal lcd(12, 11, 5, 4, 3, 2);
49
50void setup() {
51 // set up the LCD's number of columns and rows:
52 lcd.begin(numCols, numRows);
53}
54
55void loop() {
56 // loop from ASCII 'a' to ASCII 'z':
57 for (int thisLetter = 'a'; thisLetter <= 'z'; thisLetter++) {
58 // loop over the columns:
59 for (int thisCol = 0; thisCol < numRows; thisCol++) {
60 // loop over the rows:
61 for (int thisRow = 0; thisRow < numCols; thisRow++) {
62 // set the cursor position:
63 lcd.setCursor(thisCol, thisRow);
64 // print the letter:
65 lcd.write(thisLetter);
66 delay(200);
67 }
68 }
69 }
70}
71
72
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