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-rw-r--r--libraries/LiquidCrystal/LiquidCrystal.cpp310
1 files changed, 0 insertions, 310 deletions
diff --git a/libraries/LiquidCrystal/LiquidCrystal.cpp b/libraries/LiquidCrystal/LiquidCrystal.cpp
deleted file mode 100644
index 0653487..0000000
--- a/libraries/LiquidCrystal/LiquidCrystal.cpp
+++ /dev/null
@@ -1,310 +0,0 @@
-#include "LiquidCrystal.h"
-
-#include <stdio.h>
-#include <string.h>
-#include <inttypes.h>
-#include "Arduino.h"
-
-// When the display powers up, it is configured as follows:
-//
-// 1. Display clear
-// 2. Function set:
-// DL = 1; 8-bit interface data
-// N = 0; 1-line display
-// F = 0; 5x8 dot character font
-// 3. Display on/off control:
-// D = 0; Display off
-// C = 0; Cursor off
-// B = 0; Blinking off
-// 4. Entry mode set:
-// I/D = 1; Increment by 1
-// S = 0; No shift
-//
-// Note, however, that resetting the Arduino doesn't reset the LCD, so we
-// can't assume that its in that state when a sketch starts (and the
-// 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)
-{
- 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, 255, 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, 255, 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;
- _data_pins[3] = d3;
- _data_pins[4] = d4;
- _data_pins[5] = d5;
- _data_pins[6] = d6;
- _data_pins[7] = d7;
-
- pinMode(_rs_pin, OUTPUT);
- // we can save 1 pin by not using RW. Indicate by passing 255 instead of pin#
- if (_rw_pin != 255) {
- pinMode(_rw_pin, OUTPUT);
- }
- pinMode(_enable_pin, OUTPUT);
-
- if (fourbitmode)
- _displayfunction = LCD_4BITMODE | LCD_1LINE | LCD_5x8DOTS;
- else
- _displayfunction = LCD_8BITMODE | LCD_1LINE | LCD_5x8DOTS;
-
- begin(16, 1);
-}
-
-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 != 255) {
- digitalWrite(_rw_pin, LOW);
- }
-
- //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 4-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(LCD_CLEARDISPLAY); // clear display, set cursor position to zero
- delayMicroseconds(2000); // this command takes a long time!
-}
-
-void LiquidCrystal::home()
-{
- command(LCD_RETURNHOME); // set cursor position to zero
- delayMicroseconds(2000); // this command takes a long time!
-}
-
-void LiquidCrystal::setCursor(uint8_t col, uint8_t row)
-{
- int row_offsets[] = { 0x00, 0x40, 0x14, 0x54 };
- 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);
-}
-
-// 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);
-}
-
-inline size_t LiquidCrystal::write(uint8_t value) {
- send(value, HIGH);
- return 1; // assume sucess
-}
-
-/************ 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);
-
- // if there is a RW pin indicated, set it low to Write
- if (_rw_pin != 255) {
- digitalWrite(_rw_pin, LOW);
- }
-
- if (_displayfunction & LCD_8BITMODE) {
- write8bits(value);
- } else {
- 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
-}
-
-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();
-}
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