diff options
Diffstat (limited to 'libraries/LiquidCrystal')
| -rwxr-xr-x | libraries/LiquidCrystal/LiquidCrystal.cpp | 297 | ||||
| -rwxr-xr-x | libraries/LiquidCrystal/LiquidCrystal.h | 93 | ||||
| -rw-r--r-- | libraries/LiquidCrystal/examples/Autoscroll/Autoscroll.pde | 70 | ||||
| -rw-r--r-- | libraries/LiquidCrystal/examples/Blink/Blink.pde | 58 | ||||
| -rw-r--r-- | libraries/LiquidCrystal/examples/Cursor/Cursor.pde | 58 | ||||
| -rw-r--r-- | libraries/LiquidCrystal/examples/Display/Display.pde | 58 | ||||
| -rw-r--r-- | libraries/LiquidCrystal/examples/HelloWorld/HelloWorld.pde | 58 | ||||
| -rw-r--r-- | libraries/LiquidCrystal/examples/Scroll/Scroll.pde | 83 | ||||
| -rw-r--r-- | libraries/LiquidCrystal/examples/SerialDisplay/SerialDisplay.pde | 48 | ||||
| -rw-r--r-- | libraries/LiquidCrystal/examples/TextDirection/TextDirection.pde | 84 | ||||
| -rw-r--r-- | libraries/LiquidCrystal/examples/setCursor/setCursor.pde | 68 | ||||
| -rwxr-xr-x | libraries/LiquidCrystal/keywords.txt | 14 |
12 files changed, 901 insertions, 88 deletions
diff --git a/libraries/LiquidCrystal/LiquidCrystal.cpp b/libraries/LiquidCrystal/LiquidCrystal.cpp index b5f2cd4..b66f107 100755 --- a/libraries/LiquidCrystal/LiquidCrystal.cpp +++ b/libraries/LiquidCrystal/LiquidCrystal.cpp @@ -25,10 +25,39 @@ // LiquidCrystal constructor is called). LiquidCrystal::LiquidCrystal(uint8_t rs, uint8_t rw, uint8_t enable, - uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, - uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7) : - _four_bit_mode(0), _rs_pin(rs), _rw_pin(rw), _enable_pin(enable) + uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, + uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7) { + init(0, rs, rw, enable, d0, d1, d2, d3, d4, d5, d6, d7); +} + +LiquidCrystal::LiquidCrystal(uint8_t rs, uint8_t enable, + uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, + uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7) +{ + init(0, rs, -1, enable, d0, d1, d2, d3, d4, d5, d6, d7); +} + +LiquidCrystal::LiquidCrystal(uint8_t rs, uint8_t rw, uint8_t enable, + uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3) +{ + init(1, rs, rw, enable, d0, d1, d2, d3, 0, 0, 0, 0); +} + +LiquidCrystal::LiquidCrystal(uint8_t rs, uint8_t enable, + uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3) +{ + init(1, rs, -1, enable, d0, d1, d2, d3, 0, 0, 0, 0); +} + +void LiquidCrystal::init(uint8_t fourbitmode, uint8_t rs, uint8_t rw, uint8_t enable, + uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, + uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7) +{ + _rs_pin = rs; + _rw_pin = rw; + _enable_pin = enable; + _data_pins[0] = d0; _data_pins[1] = d1; _data_pins[2] = d2; @@ -37,92 +66,244 @@ LiquidCrystal::LiquidCrystal(uint8_t rs, uint8_t rw, uint8_t enable, _data_pins[5] = d5; _data_pins[6] = d6; _data_pins[7] = d7; - + pinMode(_rs_pin, OUTPUT); - pinMode(_rw_pin, OUTPUT); + // we can save 1 pin by not using RW. Indicate by passing -1 instead of pin# + if (_rw_pin != -1) { + pinMode(_rw_pin, OUTPUT); + } pinMode(_enable_pin, OUTPUT); - for (int i = 0; i < 8; i++) - pinMode(_data_pins[i], OUTPUT); - - command(0x38); // function set: 8 bits, 1 line, 5x8 dots - command(0x0C); // display control: turn display on, cursor off, no blinking - command(0x06); // entry mode set: increment automatically, display shift, right shift - clear(); + if (fourbitmode) + _displayfunction = LCD_4BITMODE | LCD_1LINE | LCD_5x8DOTS; + else + _displayfunction = LCD_8BITMODE | LCD_1LINE | LCD_5x8DOTS; + + begin(16, 1); } -LiquidCrystal::LiquidCrystal(uint8_t rs, uint8_t rw, uint8_t enable, - uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3) : - _four_bit_mode(1), _rs_pin(rs), _rw_pin(rw), _enable_pin(enable) -{ - _data_pins[0] = d0; - _data_pins[1] = d1; - _data_pins[2] = d2; - _data_pins[3] = d3; - - pinMode(_rs_pin, OUTPUT); - pinMode(_rw_pin, OUTPUT); - pinMode(_enable_pin, OUTPUT); +void LiquidCrystal::begin(uint8_t cols, uint8_t lines, uint8_t dotsize) { + if (lines > 1) { + _displayfunction |= LCD_2LINE; + } + _numlines = lines; + _currline = 0; + + // for some 1 line displays you can select a 10 pixel high font + if ((dotsize != 0) && (lines == 1)) { + _displayfunction |= LCD_5x10DOTS; + } + + // SEE PAGE 45/46 FOR INITIALIZATION SPECIFICATION! + // according to datasheet, we need at least 40ms after power rises above 2.7V + // before sending commands. Arduino can turn on way befer 4.5V so we'll wait 50 + delayMicroseconds(50000); + // Now we pull both RS and R/W low to begin commands + digitalWrite(_rs_pin, LOW); + digitalWrite(_enable_pin, LOW); + if (_rw_pin != -1) { + digitalWrite(_rw_pin, LOW); + } - for (int i = 0; i < 4; i++) - pinMode(_data_pins[i], OUTPUT); - - command(0x28); // function set: 4 bits, 1 line, 5x8 dots - command(0x0C); // display control: turn display on, cursor off, no blinking - command(0x06); // entry mode set: increment automatically, display shift, right shift + //put the LCD into 4 bit or 8 bit mode + if (! (_displayfunction & LCD_8BITMODE)) { + // this is according to the hitachi HD44780 datasheet + // figure 24, pg 46 + + // we start in 8bit mode, try to set 4 bit mode + write4bits(0x03); + delayMicroseconds(4500); // wait min 4.1ms + + // second try + write4bits(0x03); + delayMicroseconds(4500); // wait min 4.1ms + + // third go! + write4bits(0x03); + delayMicroseconds(150); + + // finally, set to 8-bit interface + write4bits(0x02); + } else { + // this is according to the hitachi HD44780 datasheet + // page 45 figure 23 + + // Send function set command sequence + command(LCD_FUNCTIONSET | _displayfunction); + delayMicroseconds(4500); // wait more than 4.1ms + + // second try + command(LCD_FUNCTIONSET | _displayfunction); + delayMicroseconds(150); + + // third go + command(LCD_FUNCTIONSET | _displayfunction); + } + + // finally, set # lines, font size, etc. + command(LCD_FUNCTIONSET | _displayfunction); + + // turn the display on with no cursor or blinking default + _displaycontrol = LCD_DISPLAYON | LCD_CURSOROFF | LCD_BLINKOFF; + display(); + + // clear it off clear(); + + // Initialize to default text direction (for romance languages) + _displaymode = LCD_ENTRYLEFT | LCD_ENTRYSHIFTDECREMENT; + // set the entry mode + command(LCD_ENTRYMODESET | _displaymode); + } +/********** high level commands, for the user! */ void LiquidCrystal::clear() { - command(0x01); // clear display, set cursor position to zero - delayMicroseconds(2000); + command(LCD_CLEARDISPLAY); // clear display, set cursor position to zero + delayMicroseconds(2000); // this command takes a long time! } void LiquidCrystal::home() { - command(0x02); // set cursor position to zero - delayMicroseconds(2000); + command(LCD_RETURNHOME); // set cursor position to zero + delayMicroseconds(2000); // this command takes a long time! } -void LiquidCrystal::setCursor(int col, int row) +void LiquidCrystal::setCursor(uint8_t col, uint8_t row) { int row_offsets[] = { 0x00, 0x40, 0x14, 0x54 }; - command(0x80 | (col + row_offsets[row])); + if ( row > _numlines ) { + row = _numlines-1; // we count rows starting w/0 + } + + command(LCD_SETDDRAMADDR | (col + row_offsets[row])); +} + +// Turn the display on/off (quickly) +void LiquidCrystal::noDisplay() { + _displaycontrol &= ~LCD_DISPLAYON; + command(LCD_DISPLAYCONTROL | _displaycontrol); +} +void LiquidCrystal::display() { + _displaycontrol |= LCD_DISPLAYON; + command(LCD_DISPLAYCONTROL | _displaycontrol); +} + +// Turns the underline cursor on/off +void LiquidCrystal::noCursor() { + _displaycontrol &= ~LCD_CURSORON; + command(LCD_DISPLAYCONTROL | _displaycontrol); +} +void LiquidCrystal::cursor() { + _displaycontrol |= LCD_CURSORON; + command(LCD_DISPLAYCONTROL | _displaycontrol); +} + +// Turn on and off the blinking cursor +void LiquidCrystal::noBlink() { + _displaycontrol &= ~LCD_BLINKON; + command(LCD_DISPLAYCONTROL | _displaycontrol); +} +void LiquidCrystal::blink() { + _displaycontrol |= LCD_BLINKON; + command(LCD_DISPLAYCONTROL | _displaycontrol); +} + +// These commands scroll the display without changing the RAM +void LiquidCrystal::scrollDisplayLeft(void) { + command(LCD_CURSORSHIFT | LCD_DISPLAYMOVE | LCD_MOVELEFT); +} +void LiquidCrystal::scrollDisplayRight(void) { + command(LCD_CURSORSHIFT | LCD_DISPLAYMOVE | LCD_MOVERIGHT); +} + +// This is for text that flows Left to Right +void LiquidCrystal::leftToRight(void) { + _displaymode |= LCD_ENTRYLEFT; + command(LCD_ENTRYMODESET | _displaymode); +} + +// This is for text that flows Right to Left +void LiquidCrystal::rightToLeft(void) { + _displaymode &= ~LCD_ENTRYLEFT; + command(LCD_ENTRYMODESET | _displaymode); +} + +// This will 'right justify' text from the cursor +void LiquidCrystal::autoscroll(void) { + _displaymode |= LCD_ENTRYSHIFTINCREMENT; + command(LCD_ENTRYMODESET | _displaymode); } -void LiquidCrystal::command(uint8_t value) { +// This will 'left justify' text from the cursor +void LiquidCrystal::noAutoscroll(void) { + _displaymode &= ~LCD_ENTRYSHIFTINCREMENT; + command(LCD_ENTRYMODESET | _displaymode); +} + +// Allows us to fill the first 8 CGRAM locations +// with custom characters +void LiquidCrystal::createChar(uint8_t location, uint8_t charmap[]) { + location &= 0x7; // we only have 8 locations 0-7 + command(LCD_SETCGRAMADDR | (location << 3)); + for (int i=0; i<8; i++) { + write(charmap[i]); + } +} + +/*********** mid level commands, for sending data/cmds */ + +inline void LiquidCrystal::command(uint8_t value) { send(value, LOW); } -void LiquidCrystal::write(uint8_t value) { +inline void LiquidCrystal::write(uint8_t value) { send(value, HIGH); } +/************ low level data pushing commands **********/ + +// write either command or data, with automatic 4/8-bit selection void LiquidCrystal::send(uint8_t value, uint8_t mode) { digitalWrite(_rs_pin, mode); - digitalWrite(_rw_pin, LOW); - - if (_four_bit_mode) { - for (int i = 0; i < 4; i++) { - digitalWrite(_data_pins[i], (value >> (i + 4)) & 0x01); - } - - digitalWrite(_enable_pin, HIGH); - digitalWrite(_enable_pin, LOW); - - for (int i = 0; i < 4; i++) { - digitalWrite(_data_pins[i], (value >> i) & 0x01); - } - digitalWrite(_enable_pin, HIGH); - digitalWrite(_enable_pin, LOW); + // if there is a RW pin indicated, set it low to Write + if (_rw_pin != -1) { + digitalWrite(_rw_pin, LOW); + } + + if (_displayfunction & LCD_8BITMODE) { + write8bits(value); } else { - for (int i = 0; i < 8; i++) { - digitalWrite(_data_pins[i], (value >> i) & 0x01); - } + write4bits(value>>4); + write4bits(value); + } +} + +void LiquidCrystal::pulseEnable(void) { + digitalWrite(_enable_pin, LOW); + delayMicroseconds(1); + digitalWrite(_enable_pin, HIGH); + delayMicroseconds(1); // enable pulse must be >450ns + digitalWrite(_enable_pin, LOW); + delayMicroseconds(100); // commands need > 37us to settle +} - digitalWrite(_enable_pin, HIGH); - digitalWrite(_enable_pin, LOW); +void LiquidCrystal::write4bits(uint8_t value) { + for (int i = 0; i < 4; i++) { + pinMode(_data_pins[i], OUTPUT); + digitalWrite(_data_pins[i], (value >> i) & 0x01); } + + pulseEnable(); +} + +void LiquidCrystal::write8bits(uint8_t value) { + for (int i = 0; i < 8; i++) { + pinMode(_data_pins[i], OUTPUT); + digitalWrite(_data_pins[i], (value >> i) & 0x01); + } + + pulseEnable(); } diff --git a/libraries/LiquidCrystal/LiquidCrystal.h b/libraries/LiquidCrystal/LiquidCrystal.h index a5edc5f..f66ec1b 100755 --- a/libraries/LiquidCrystal/LiquidCrystal.h +++ b/libraries/LiquidCrystal/LiquidCrystal.h @@ -4,28 +4,101 @@ #include <inttypes.h> #include "Print.h" +// commands +#define LCD_CLEARDISPLAY 0x01 +#define LCD_RETURNHOME 0x02 +#define LCD_ENTRYMODESET 0x04 +#define LCD_DISPLAYCONTROL 0x08 +#define LCD_CURSORSHIFT 0x10 +#define LCD_FUNCTIONSET 0x20 +#define LCD_SETCGRAMADDR 0x40 +#define LCD_SETDDRAMADDR 0x80 + +// flags for display entry mode +#define LCD_ENTRYRIGHT 0x00 +#define LCD_ENTRYLEFT 0x02 +#define LCD_ENTRYSHIFTINCREMENT 0x01 +#define LCD_ENTRYSHIFTDECREMENT 0x00 + +// flags for display on/off control +#define LCD_DISPLAYON 0x04 +#define LCD_DISPLAYOFF 0x00 +#define LCD_CURSORON 0x02 +#define LCD_CURSOROFF 0x00 +#define LCD_BLINKON 0x01 +#define LCD_BLINKOFF 0x00 + +// flags for display/cursor shift +#define LCD_DISPLAYMOVE 0x08 +#define LCD_CURSORMOVE 0x00 +#define LCD_MOVERIGHT 0x04 +#define LCD_MOVELEFT 0x00 + +// flags for function set +#define LCD_8BITMODE 0x10 +#define LCD_4BITMODE 0x00 +#define LCD_2LINE 0x08 +#define LCD_1LINE 0x00 +#define LCD_5x10DOTS 0x04 +#define LCD_5x8DOTS 0x00 + class LiquidCrystal : public Print { public: - LiquidCrystal(uint8_t, uint8_t, uint8_t, uint8_t, uint8_t, uint8_t, uint8_t); - LiquidCrystal(uint8_t, uint8_t, uint8_t, uint8_t, uint8_t, uint8_t, uint8_t, - uint8_t, uint8_t, uint8_t, uint8_t); + LiquidCrystal(uint8_t rs, uint8_t enable, + uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, + uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7); + LiquidCrystal(uint8_t rs, uint8_t rw, uint8_t enable, + uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, + uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7); + LiquidCrystal(uint8_t rs, uint8_t rw, uint8_t enable, + uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3); + LiquidCrystal(uint8_t rs, uint8_t enable, + uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3); + + void init(uint8_t fourbitmode, uint8_t rs, uint8_t rw, uint8_t enable, + uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, + uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7); + + void begin(uint8_t cols, uint8_t rows, uint8_t charsize = LCD_5x8DOTS); + void clear(); void home(); - void setCursor(int, int); - /* - void shiftDisplayLeft(); - void shiftDisplayRight(); - */ + + void noDisplay(); + void display(); + void noBlink(); + void blink(); + void noCursor(); + void cursor(); + void scrollDisplayLeft(); + void scrollDisplayRight(); + void leftToRight(); + void rightToLeft(); + void autoscroll(); + void noAutoscroll(); + + void createChar(uint8_t, uint8_t[]); + void setCursor(uint8_t, uint8_t); virtual void write(uint8_t); void command(uint8_t); private: void send(uint8_t, uint8_t); - - uint8_t _four_bit_mode; + void write4bits(uint8_t); + void write8bits(uint8_t); + void pulseEnable(); + uint8_t _rs_pin; // LOW: command. HIGH: character. uint8_t _rw_pin; // LOW: write to LCD. HIGH: read from LCD. uint8_t _enable_pin; // activated by a HIGH pulse. uint8_t _data_pins[8]; + + uint8_t _displayfunction; + uint8_t _displaycontrol; + uint8_t _displaymode; + + uint8_t _initialized; + + uint8_t _numlines,_currline; }; #endif diff --git a/libraries/LiquidCrystal/examples/Autoscroll/Autoscroll.pde b/libraries/LiquidCrystal/examples/Autoscroll/Autoscroll.pde new file mode 100644 index 0000000..bf33743 --- /dev/null +++ b/libraries/LiquidCrystal/examples/Autoscroll/Autoscroll.pde @@ -0,0 +1,70 @@ +/* + 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 autoscroll() + and noAutoscroll() functions to make new text scroll or not. + + 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 + * 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 25 July 2009 + by David A. Mellis + + http://www.arduino.cc/en/Tutorial/LiquidCrystal + */ + +// include the library code: +#include <LiquidCrystal.h> + +// 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(16,2); +} + +void loop() { + // set the cursor to (0,0): + lcd.setCursor(0, 0); + // print from 0 to 9: + for (int thisChar = 0; thisChar < 10; thisChar++) { + lcd.print(thisChar); + delay(500); + } + + // set the cursor to (16,1): + lcd.setCursor(16,1); + // 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(); +} + diff --git a/libraries/LiquidCrystal/examples/Blink/Blink.pde b/libraries/LiquidCrystal/examples/Blink/Blink.pde new file mode 100644 index 0000000..83c79b4 --- /dev/null +++ b/libraries/LiquidCrystal/examples/Blink/Blink.pde @@ -0,0 +1,58 @@ +/* + LiquidCrystal Library - Blink + + 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 "Hello World!" to the LCD and makes the + cursor block blink. + + 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 + * 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 25 July 2009 + by David A. Mellis + + http://www.arduino.cc/en/Tutorial/LiquidCrystal + + */ + +// include the library code: +#include <LiquidCrystal.h> + +// 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 rows and columns: + lcd.begin(16, 2); + // Print a message to the LCD. + lcd.print("hello, world!"); +} + +void loop() { + // Turn off the blinking cursor: + lcd.noBlink(); + delay(3000); + // Turn on the blinking cursor: + lcd.blink(); + delay(3000); +} + + diff --git a/libraries/LiquidCrystal/examples/Cursor/Cursor.pde b/libraries/LiquidCrystal/examples/Cursor/Cursor.pde new file mode 100644 index 0000000..c0273f4 --- /dev/null +++ b/libraries/LiquidCrystal/examples/Cursor/Cursor.pde @@ -0,0 +1,58 @@ +/* + LiquidCrystal Library - Cursor + + 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 "Hello World!" to the LCD and + uses the cursor() and noCursor() methods to turn + on and off the cursor. + + 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 + * 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 25 July 2009 + by David A. Mellis + + + http://www.arduino.cc/en/Tutorial/LiquidCrystal + */ + +// include the library code: +#include <LiquidCrystal.h> + +// 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 rows and columns: + lcd.begin(16, 2); + // Print a message to the LCD. + lcd.print("hello, world!"); +} + +void loop() { + // Turn off the cursor: + lcd.noCursor(); + delay(500); + // Turn on the cursor: + lcd.cursor(); + delay(500); +} + diff --git a/libraries/LiquidCrystal/examples/Display/Display.pde b/libraries/LiquidCrystal/examples/Display/Display.pde new file mode 100644 index 0000000..b430539 --- /dev/null +++ b/libraries/LiquidCrystal/examples/Display/Display.pde @@ -0,0 +1,58 @@ +/* + LiquidCrystal Library - display() and noDisplay() + + 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 "Hello World!" to the LCD and uses the + display() and noDisplay() functions to turn on and off + the display. + + 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 + * 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 25 July 2009 + by David A. Mellis + + + http://www.arduino.cc/en/Tutorial/LiquidCrystal + */ + +// include the library code: +#include <LiquidCrystal.h> + +// 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 rows and columns: + lcd.begin(16, 2); + // Print a message to the LCD. + lcd.print("hello, world!"); +} + +void loop() { + // Turn off the display: + lcd.noDisplay(); + delay(500); + // Turn on the display: + lcd.display(); + delay(500); +} + diff --git a/libraries/LiquidCrystal/examples/HelloWorld/HelloWorld.pde b/libraries/LiquidCrystal/examples/HelloWorld/HelloWorld.pde index 2f244d0..76cd746 100644 --- a/libraries/LiquidCrystal/examples/HelloWorld/HelloWorld.pde +++ b/libraries/LiquidCrystal/examples/HelloWorld/HelloWorld.pde @@ -1,18 +1,56 @@ +/* + LiquidCrystal Library - Hello World + + 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 "Hello World!" to the LCD + and shows the time. + + 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 + * 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 25 July 2009 + by David A. Mellis + + + http://www.arduino.cc/en/Tutorial/LiquidCrystal + */ + +// include the library code: #include <LiquidCrystal.h> -// LiquidCrystal display with: -// rs on pin 12 -// rw on pin 11 -// enable on pin 10 -// d4, d5, d6, d7 on pins 5, 4, 3, 2 -LiquidCrystal lcd(12, 11, 10, 5, 4, 3, 2); +// initialize the library with the numbers of the interface pins +LiquidCrystal lcd(12, 11, 5, 4, 3, 2); -void setup() -{ +void setup() { + // set up the LCD's number of rows and columns: + lcd.begin(16, 2); // Print a message to the LCD. lcd.print("hello, world!"); } -void loop() -{ +void loop() { + // set the cursor to column 0, line 1 + // (note: line 1 is the second row, since counting begins with 0): + lcd.setCursor(0, 1); + // print the number of seconds since reset: + lcd.print(millis()/1000); } + diff --git a/libraries/LiquidCrystal/examples/Scroll/Scroll.pde b/libraries/LiquidCrystal/examples/Scroll/Scroll.pde new file mode 100644 index 0000000..9276553 --- /dev/null +++ b/libraries/LiquidCrystal/examples/Scroll/Scroll.pde @@ -0,0 +1,83 @@ +/* + LiquidCrystal Library - scrollDisplayLeft() and scrollDisplayRight() + + 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 "Hello World!" to the LCD and uses the + scrollDisplayLeft() and scrollDisplayRight() methods to scroll + the text. + + 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 + * 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 25 July 2009 + by David A. Mellis + + http://www.arduino.cc/en/Tutorial/LiquidCrystal + */ + +// include the library code: +#include <LiquidCrystal.h> + +// 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 rows and columns: + lcd.begin(16, 2); + //lcd.setCursor(0,7); + // Print a message to the LCD. + lcd.print("hello, world!"); + delay(1000); +} + +void loop() { + // scroll 13 positions (string length) to the left + // to move it offscreen left: + for (int positionCounter = 0; positionCounter < 13; positionCounter++) { + // scroll one position left: + lcd.scrollDisplayLeft(); + // wait a bit: + delay(150); + } + + // scroll 29 positions (string length + display length) to the right + // to move it offscreen right: + for (int positionCounter = 0; positionCounter < 29; positionCounter++) { + // scroll one position right: + lcd.scrollDisplayRight(); + // wait a bit: + delay(150); + } + + // scroll 16 positions (display length + string length) to the left + // to move it back to center: + for (int positionCounter = 0; positionCounter < 16; positionCounter++) { + // scroll one position left: + lcd.scrollDisplayLeft(); + // wait a bit: + delay(150); + } + + // delay at the end of the full loop: + delay(1000); + +} + diff --git a/libraries/LiquidCrystal/examples/SerialDisplay/SerialDisplay.pde b/libraries/LiquidCrystal/examples/SerialDisplay/SerialDisplay.pde index 0c4ce35..a094c24 100644 --- a/libraries/LiquidCrystal/examples/SerialDisplay/SerialDisplay.pde +++ b/libraries/LiquidCrystal/examples/SerialDisplay/SerialDisplay.pde @@ -1,19 +1,47 @@ /* - * Displays text sent over the serial port (e.g. from the Serial Monitor) on - * an attached LCD. + LiquidCrystal Library - Serial Input + + 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 displays text sent over the serial port + (e.g. from the Serial Monitor) on an attached LCD. + + 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 + * 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 25 July 2009 + by David A. Mellis + + http://www.arduino.cc/en/Tutorial/LiquidCrystal */ +// include the library code: #include <LiquidCrystal.h> -// LiquidCrystal display with: -// rs on pin 12 -// rw on pin 11 -// enable on pin 10 -// d4, d5, d6, d7 on pins 5, 4, 3, 2 -LiquidCrystal lcd(12, 11, 10, 5, 4, 3, 2); +// initialize the library with the numbers of the interface pins +LiquidCrystal lcd(12, 11, 5, 4, 3, 2); -void setup() -{ +void setup(){ + // set up the LCD's number of rows and columns: + lcd.begin(16, 2); + // initialize the serial communications: Serial.begin(9600); } diff --git a/libraries/LiquidCrystal/examples/TextDirection/TextDirection.pde b/libraries/LiquidCrystal/examples/TextDirection/TextDirection.pde new file mode 100644 index 0000000..725eb0d --- /dev/null +++ b/libraries/LiquidCrystal/examples/TextDirection/TextDirection.pde @@ -0,0 +1,84 @@ + /* + 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 leftToRight() and rightToLeft() + to move the cursor. + + 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 + * 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 25 July 2009 + by David A. Mellis + + http://www.arduino.cc/en/Tutorial/LiquidCrystal + + */ + +// include the library code: +#include <LiquidCrystal.h> + +// initialize the library with the numbers of the interface pins +LiquidCrystal lcd(12, 11, 5, 4, 3, 2); + +int thisChar = 'a'; + +void setup() { + // set up the LCD's number of rows and columns: + lcd.begin(16, 2); + // turn on the cursor: + lcd.cursor(); + Serial.begin(9600); +} + +void loop() { + // reverse directions at 'm': + if (thisChar == 'm') { + // go right for the next letter + lcd.rightToLeft(); + } + // reverse again at 's': + if (thisChar == 's') { + // go left for the next letter + lcd.leftToRight(); + } + // reset at 'z': + if (thisChar > 'z') { + // go to (0,0): + lcd.home(); + // start again at 0 + thisChar = 'a'; + } + // print the character + lcd.print(thisChar, BYTE); + // wait a second: + delay(1000); + // increment the letter: + thisChar++; +} + + + + + + + + diff --git a/libraries/LiquidCrystal/examples/setCursor/setCursor.pde b/libraries/LiquidCrystal/examples/setCursor/setCursor.pde new file mode 100644 index 0000000..edd2e77 --- /dev/null +++ b/libraries/LiquidCrystal/examples/setCursor/setCursor.pde @@ -0,0 +1,68 @@ +/* + 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 + * 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 25 July 2009 + by David A. Mellis + + http://www.arduino.cc/en/Tutorial/LiquidCrystal + */ + +// 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 rows and columns: + lcd.begin(numRows, numCols); +} + +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.print(thisLetter, BYTE); + delay(200); + } + } + } +} + + diff --git a/libraries/LiquidCrystal/keywords.txt b/libraries/LiquidCrystal/keywords.txt index 367ab1f..132845c 100755 --- a/libraries/LiquidCrystal/keywords.txt +++ b/libraries/LiquidCrystal/keywords.txt @@ -12,10 +12,24 @@ LiquidCrystal KEYWORD1 # Methods and Functions (KEYWORD2) ####################################### +begin KEYWORD2 clear KEYWORD2 home KEYWORD2 print KEYWORD2 setCursor KEYWORD2 +cursor KEYWORD2 +noCursor KEYWORD2 +blink KEYWORD2 +noBlink KEYWORD2 +display KEYWORD2 +noDisplay KEYWORD2 +autoscroll KEYWORD2 +noAutoscroll KEYWORD2 +leftToRight KEYWORD2 +rightToLeft KEYWORD2 +scrollDisplayLeft KEYWORD2 +scrollDisplayRight KEYWORD2 +createChar KEYWORD2 ####################################### # Constants (LITERAL1) |