Updating LiquidCrystal API and examples.

This commit is contained in:
David A. Mellis 2009-07-25 18:26:29 +00:00
parent f504460fc4
commit 58b4e52f7f
7 changed files with 34 additions and 30 deletions

View File

@ -219,25 +219,25 @@ void LiquidCrystal::scrollDisplayRight(void) {
}
// This is for text that flows Left to Right
void LiquidCrystal::shiftLeft(void) {
void LiquidCrystal::leftToRight(void) {
_displaymode |= LCD_ENTRYLEFT;
command(LCD_ENTRYMODESET | _displaymode);
}
// This is for text that flows Right to Left
void LiquidCrystal::shiftRight(void) {
void LiquidCrystal::rightToLeft(void) {
_displaymode &= ~LCD_ENTRYLEFT;
command(LCD_ENTRYMODESET | _displaymode);
}
// This will 'right justify' text from the cursor
void LiquidCrystal::shiftIncrement(void) {
void LiquidCrystal::autoscroll(void) {
_displaymode |= LCD_ENTRYSHIFTINCREMENT;
command(LCD_ENTRYMODESET | _displaymode);
}
// This will 'left justify' text from the cursor
void LiquidCrystal::shiftDecrement(void) {
void LiquidCrystal::noAutoscroll(void) {
_displaymode &= ~LCD_ENTRYSHIFTINCREMENT;
command(LCD_ENTRYMODESET | _displaymode);
}

View File

@ -72,12 +72,10 @@ public:
void cursor();
void scrollDisplayLeft();
void scrollDisplayRight();
void printLeft();
void printRight();
void shiftLeft();
void shiftRight();
void shiftIncrement();
void shiftDecrement();
void leftToRight();
void rightToLeft();
void autoscroll();
void noAutoscroll();
void createChar(uint8_t, uint8_t[]);
void setCursor(uint8_t, uint8_t);

View File

@ -45,12 +45,12 @@ void setup() {
}
void loop() {
// Turn off the display:
// Turn off the blinking cursor:
lcd.noBlink();
delay(500);
// Turn on the display:
delay(3000);
// Turn on the blinking cursor:
lcd.blink();
delay(500);
delay(3000);
}

View File

@ -45,10 +45,10 @@ void setup() {
}
void loop() {
// Turn off the display:
// Turn off the cursor:
lcd.noCursor();
delay(500);
// Turn on the display:
// Turn on the cursor:
lcd.cursor();
delay(500);
}

View File

@ -1,13 +1,13 @@
/*
LiquidCrystal Library - Increment/Decrement
LiquidCrystal Library - Autoscroll
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 demonstrates the use of the shiftIncrement()
and shifDecrement() functions.
This sketch demonstrates the use of the autoscroll()
and noAutoscroll() functions.
The circuit:
* LCD RS pin to digital pin 12
@ -37,29 +37,30 @@
LiquidCrystal lcd(12, 11, 5, 4, 3, 2);
void setup() {
// set up the LCD's number of rows and columns:
// set up the LCD's number of columns and rows:
lcd.begin(2, 16);
}
void loop() {
// set the cursor to (0,0):
// set the cursor to (0,0):
lcd.setCursor(0, 0);
// set the display to left justify:
lcd.shiftDecrement();
// print from 0 to 9:
for (int thisChar = 0; thisChar < 10; thisChar++) {
lcd.print(thisChar);
delay(500);
}
// set the cursor to (16,0):
// set the cursor to (16,1):
lcd.setCursor(16,1);
// set the display to left justify:
lcd.shiftIncrement();
// set the display to automatically scroll:
lcd.autoscroll();
// print from 0 to 9:
for (int thisChar = 0; thisChar < 10; thisChar++) {
lcd.print(thisChar);
delay(500);
}
// turn off automatic scrolling
lcd.noAutoscroll();
// clear screen for the next loop:
lcd.clear();

View File

@ -1,12 +1,12 @@
/*
LiquidCrystal Library - Shift
LiquidCrystal Library - TextDirection
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 demonstrates how to use shiftLeft() and shiftRight()
This sketch demonstrates how to use leftToRight() and rightToLeft()
to move the cursor.
The circuit:
@ -51,12 +51,12 @@ void loop() {
// reverse directions at 'm':
if (thisChar == 'm') {
// go right for the next letter
lcd.shiftRight();
lcd.rightToLeft();
}
// reverse again at 's':
if (thisChar == 's') {
// go left for the next letter
lcd.shiftLeft();
lcd.leftToRight();
}
// reset at 'z':
if (thisChar > 'z') {

View File

@ -12,10 +12,15 @@ LiquidCrystal KEYWORD1
# Methods and Functions (KEYWORD2)
#######################################
begin KEYWORD2
clear KEYWORD2
home KEYWORD2
print KEYWORD2
setCursor KEYWORD2
cursor KEYWORD2
noCursor KEYWORD2
blink KEYWORD2
noBlink KEYWORD2
#######################################
# Constants (LITERAL1)