1 | /*
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2 | LiquidCrystal Library - Autoscroll
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3 |
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4 | Demonstrates the use a 16x2 LCD display. The LiquidCrystal
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5 | library works with all LCD displays that are compatible with the
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6 | Hitachi HD44780 driver. There are many of them out there, and you
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7 | can usually tell them by the 16-pin interface.
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8 |
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9 | This sketch demonstrates the use of the autoscroll()
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10 | and noAutoscroll() functions to make new text scroll or not.
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11 |
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12 | The circuit:
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13 | * LCD RS pin to digital pin 12
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14 | * LCD Enable pin to digital pin 11
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15 | * LCD D4 pin to digital pin 5
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16 | * LCD D5 pin to digital pin 4
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17 | * LCD D6 pin to digital pin 3
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18 | * LCD D7 pin to digital pin 2
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19 | * LCD R/W pin to ground
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20 | * 10K resistor:
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21 | * ends to +5V and ground
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22 | * wiper to LCD VO pin (pin 3)
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23 |
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24 | Library originally added 18 Apr 2008
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25 | by David A. Mellis
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26 | library modified 5 Jul 2009
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27 | by Limor Fried (http://www.ladyada.net)
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28 | example added 9 Jul 2009
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29 | by Tom Igoe
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30 | modified 22 Nov 2010
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31 | by Tom Igoe
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32 |
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33 | This example code is in the public domain.
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34 |
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35 | http://arduino.cc/en/Tutorial/LiquidCrystalAutoscroll
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36 |
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37 | */
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38 |
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39 | // include the library code:
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40 | #include <LiquidCrystal.h>
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41 |
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42 | // initialize the library with the numbers of the interface pins
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43 | LiquidCrystal lcd(12, 11, 5, 4, 3, 2);
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44 |
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45 | void setup() {
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46 | // set up the LCD's number of columns and rows:
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47 | lcd.begin(16, 2);
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48 | }
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49 |
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50 | void loop() {
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51 | // set the cursor to (0,0):
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52 | lcd.setCursor(0, 0);
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53 | // print from 0 to 9:
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54 | for (int thisChar = 0; thisChar < 10; thisChar++) {
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55 | lcd.print(thisChar);
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56 | delay(500);
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57 | }
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58 |
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59 | // set the cursor to (16,1):
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60 | lcd.setCursor(16, 1);
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61 | // set the display to automatically scroll:
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62 | lcd.autoscroll();
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63 | // print from 0 to 9:
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64 | for (int thisChar = 0; thisChar < 10; thisChar++) {
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65 | lcd.print(thisChar);
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66 | delay(500);
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67 | }
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68 | // turn off automatic scrolling
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69 | lcd.noAutoscroll();
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70 |
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71 | // clear screen for the next loop:
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72 | lcd.clear();
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73 | }
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74 |
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