LiquidCrystal_MCP23017_custompin Class Reference

MCP23017 I2C default class with special character support. More...

#include <lcd_MCP23017.h>

Inherits LiquidCrystal_MCP23017_custompin_base.

Public Member Functions
	LiquidCrystal_MCP23017_custompin (uint8_t lcdAddr, uint8_t rsPin, uint8_t rwPin, uint8_t enPin, uint8_t d4Pin, uint8_t d5Pin, uint8_t d6Pin, uint8_t d7Pin, uint8_t blPin, t_backlightPol blType, uint8_t cols, uint8_t rows)
	constructor for a LCD on a MCP23017 with free pin assignement More...
	LiquidCrystal_MCP23017_custompin (uint8_t lcdAddr, uint8_t rsPin, uint8_t rwPin, uint8_t enPin, uint8_t d4Pin, uint8_t d5Pin, uint8_t d6Pin, uint8_t d7Pin, uint8_t blPin, t_backlightPol blType, uint8_t cols, uint8_t rows, CallBack funcPtr)
	constructor for a LCD on a MCP23017 with free pin assignement More...
	LiquidCrystal_MCP23017_custompin (TwoWire &i2cPort, uint8_t lcdAddr, uint8_t rsPin, uint8_t rwPin, uint8_t enPin, uint8_t d4Pin, uint8_t d5Pin, uint8_t d6Pin, uint8_t d7Pin, uint8_t blPin, t_backlightPol blType, uint8_t cols, uint8_t rows)
	constructor for a LCD on a MCP23017 with free pin assignement More...
	LiquidCrystal_MCP23017_custompin (TwoWire &i2cPort, uint8_t lcdAddr, uint8_t rsPin, uint8_t rwPin, uint8_t enPin, uint8_t d4Pin, uint8_t d5Pin, uint8_t d6Pin, uint8_t d7Pin, uint8_t blPin, t_backlightPol blType, uint8_t cols, uint8_t rows, CallBack funcPtr)
	constructor for a LCD on a MCP23017 with free pin assignement More...
size_t	write (uint8_t value)
	writes a character to the LCD More...

Detailed Description

MCP23017 I2C default class with special character support.

This class can be used with a MCP23017 - a 16 channel I2C portexpander.

Constructor & Destructor Documentation

LiquidCrystal_MCP23017_custompin() [1/4]

LiquidCrystal_MCP23017_custompin::LiquidCrystal_MCP23017_custompin ( uint8_t  lcdAddr, uint8_t  rsPin, uint8_t  rwPin, uint8_t  enPin, uint8_t  d4Pin, uint8_t  d5Pin, uint8_t  d6Pin, uint8_t  d7Pin, uint8_t  blPin, t_backlightPol  blType, uint8_t  cols, uint8_t  rows  )

inline

constructor for a LCD on a MCP23017 with free pin assignement

This constructor uses the default character converter

Parameters

lcdAddr	the I2C address
rsPin	the RS pin
rwPin	the RW pin
enPin	the Enable pin
d4Pin	data pin 4
d5Pin	data pin 5
d6Pin	data pin 6
d7Pin	data pin 7
blPin	pin for backlight
blType	set to POSITIVE or NEGATIVE
cols	the columns 8, 16, 20, 24 or 40
rows	the rows: 1, 2, or 4

LiquidCrystal_MCP23017_custompin() [2/4]

LiquidCrystal_MCP23017_custompin::LiquidCrystal_MCP23017_custompin ( uint8_t  lcdAddr, uint8_t  rsPin, uint8_t  rwPin, uint8_t  enPin, uint8_t  d4Pin, uint8_t  d5Pin, uint8_t  d6Pin, uint8_t  d7Pin, uint8_t  blPin, t_backlightPol  blType, uint8_t  cols, uint8_t  rows, CallBack  funcPtr  )

inline

constructor for a LCD on a MCP23017 with free pin assignement

This constructor an indidvidual character converter

Parameters

lcdAddr	the I2C address
rsPin	the RS pin
rwPin	the RW pin
enPin	the Enable pin
d4Pin	data pin 4
d5Pin	data pin 5
d6Pin	data pin 6
d7Pin	data pin 7
blPin	pin for backlight
blType	set to POSITIVE or NEGATIVE
cols	the columns 8, 16, 20, 24 or 40
rows	the rows: 1, 2, or 4
funcPtr	a callback to convert UTF-8 characters

LiquidCrystal_MCP23017_custompin() [3/4]

LiquidCrystal_MCP23017_custompin::LiquidCrystal_MCP23017_custompin ( TwoWire &  i2cPort, uint8_t  lcdAddr, uint8_t  rsPin, uint8_t  rwPin, uint8_t  enPin, uint8_t  d4Pin, uint8_t  d5Pin, uint8_t  d6Pin, uint8_t  d7Pin, uint8_t  blPin, t_backlightPol  blType, uint8_t  cols, uint8_t  rows  )

inline

constructor for a LCD on a MCP23017 with free pin assignement

This constructor accepts a Wire interface and the default converter

Parameters

i2cPort	the I2C port, i.e. Wire
lcdAddr	the I2C address
rsPin	the RS pin
rwPin	the RW pin
enPin	the Enable pin
d4Pin	data pin 4
d5Pin	data pin 5
d6Pin	data pin 6
d7Pin	data pin 7
blPin	pin for backlight
blType	set to POSITIVE or NEGATIVE
cols	the columns 8, 16, 20, 24 or 40
rows	the rows: 1, 2, or 4

LiquidCrystal_MCP23017_custompin() [4/4]

LiquidCrystal_MCP23017_custompin::LiquidCrystal_MCP23017_custompin ( TwoWire &  i2cPort, uint8_t  lcdAddr, uint8_t  rsPin, uint8_t  rwPin, uint8_t  enPin, uint8_t  d4Pin, uint8_t  d5Pin, uint8_t  d6Pin, uint8_t  d7Pin, uint8_t  blPin, t_backlightPol  blType, uint8_t  cols, uint8_t  rows, CallBack  funcPtr  )

inline

constructor for a LCD on a MCP23017 with free pin assignement

This constructor accepts a Wire interface and a indidvidual character converter

Parameters

i2cPort	the I2C port, i.e. Wire
lcdAddr	the I2C address
rsPin	the RS pin
rwPin	the RW pin
enPin	the Enable pin
d4Pin	data pin 4
d5Pin	data pin 5
d6Pin	data pin 6
d7Pin	data pin 7
blPin	pin for backlight
blType	set to POSITIVE or NEGATIVE
cols	the columns 8, 16, 20, 24 or 40
rows	the rows: 1, 2, or 4
funcPtr	a callback to convert UTF-8 characters

Member Function Documentation

write()

size_t LiquidCrystal_MCP23017_custompin::write ( uint8_t  value )

inline

writes a character to the LCD

This function uses the converter for UTF-8 characters.

Parameters

value

the character to be written to the display