void LiquidCrystal::begin(uint8_t cols, uint8_t lines, uint8_t dotsize) {
_displayfunction |= LCD_2LINE;
_numlines = lines;
setRowOffsets(0x00, 0x40, 0x00 + cols, 0x40 + cols);
// Now we pull both RS and R/W low to begin commands
digitalWrite(_rs_pin, LOW);
digitalWrite(_enable_pin, LOW);
digitalWrite(_rw_pin, LOW);
// Send function set command sequence
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);
}
void LCD::begin(uint8_t cols, uint8_t rows, uint8_t charsize) {
if (rows > 1) {
displayFunction |= LCD_2LINE;
}
numLines = rows;
setRowOffsets(0x00, 0x40, 0x00 + cols, 0x40 + cols);
if ((charsize != LCD_5x8DOTS) && (rows == 1)) {
displayFunction |= LCD_5x10DOTS;
}
pinMode(pinRS, OUTPUT);
pinMode(pinE, OUTPUT);
if (pinRW != 255)
pinMode(pinRW, OUTPUT);
for (int i=0; i<((displayFunction & LCD_8BITMODE) ? 8 : 4); ++i)
pinMode(pinData[i], OUTPUT);
_delay_us(50000);
digitalOutput(pinRS, LOW);
digitalOutput(pinE, LOW);
if (pinRW != 255)
digitalOutput(pinRW, LOW);
if (! (displayFunction & LCD_8BITMODE)) {
write4bits(0x03);
_delay_us(4500);
write4bits(0x03);
_delay_us(4500);
write4bits(0x03);
_delay_us(150);
write4bits(0x02);
} else {
command(LCD_FUNCTIONSET | displayFunction);
_delay_us(4500);
command(LCD_FUNCTIONSET | displayFunction);
_delay_us(150);
command(LCD_FUNCTIONSET | displayFunction);
}
command(LCD_FUNCTIONSET | displayFunction);
displayControl = LCD_DISPLAYON | LCD_CURSOROFF | LCD_BLINKOFF;
display();
clear();
displayMode = LCD_ENTRYLEFT | LCD_ENTRYSHIFTDECREMENT;
command(LCD_ENTRYMODESET | displayMode);
}
void LiquidCrystal_EADIP204_6::begin(uint8_t dotsize) {
// _displayfunction |= LCD_2LINE;
setRowOffsets(0x00, 0x20, 0x40, 0x60);
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);
// Do these once, instead of every time a character is drawn for speed reasons.
for (int i=0; i<((_displayfunction & LCD_8BITMODE) ? 8 : 4); ++i)
{
pinMode(_data_pins[i], OUTPUT);
}
// 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 before 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);
delayMicroseconds(4500);
command(LCD_FSET | LCD_RE); //function set RE=1 lcd.command (0x24) / /
delayMicroseconds(4500);
command(LCD_4L5DF);
delayMicroseconds(4500);
command(LCD_SETCGRAMADDR);
delayMicroseconds(4500);
for (int i = 0; i < 16; ++i) {
send(LCD_SYM_MODE_OFF, HIGH);
}
delayMicroseconds(4500);
command(LCD_FSET);
delayMicroseconds(4500);
delayMicroseconds(4500);
} 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);
}
void LiquidCrystal::begin(uint8_t cols, uint8_t lines, uint8_t dotsize) {
if (lines > 1) {
_displayfunction |= LCD_2LINE;
}
_numlines = lines;
setRowOffsets(0x00, 0x40, 0x00 + cols, 0x40 + cols);
// for some 1 line displays you can select a 10 pixel high font
if ((dotsize != LCD_5x8DOTS) && (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 before 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);
}
