Added I2C port expander support to HD44780
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@ -354,8 +354,8 @@ const bool Z_ENDSTOPS_INVERTING = true; // set to true to invert the logic of th
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//The LCD is attached via an I2C port expander.
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//#define LCD_I2C
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#ifdef LCD_I2C
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// Port Expander Type - PCF8574 or MCP23008
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#define LCD_I2C_TYPE PCF8574
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// Port Expander Type - 0=PCF8574 or 1=MCP23008
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#define LCD_I2C_TYPE 0
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// I2C Address of the port expander
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#define LCD_I2C_ADDRESS 0x20
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#endif
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@ -7,11 +7,16 @@
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**/
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#if LANGUAGE_CHOICE == 6
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#include "LiquidCrystalRus.h"
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#define LCD_CLASS LiquidCrystalRus
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#include "LiquidCrystalRus.h"
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#define LCD_CLASS LiquidCrystalRus
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#else
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#include <LiquidCrystal.h>
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#define LCD_CLASS LiquidCrystal
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#ifdef LCD_I2C
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#include <LiquidCrystal_I2C.h>
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#define LCD_CLASS LiquidCrystal_I2C
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#else
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#include <LiquidCrystal.h>
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#define LCD_CLASS LiquidCrystal
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#endif
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#endif
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/* Custom characters defined in the first 8 characters of the LCD */
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@ -25,7 +30,12 @@
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#define LCD_STR_CLOCK "\x07"
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#define LCD_STR_ARROW_RIGHT "\x7E" /* from the default character set */
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LCD_CLASS lcd(LCD_PINS_RS, LCD_PINS_ENABLE, LCD_PINS_D4, LCD_PINS_D5,LCD_PINS_D6,LCD_PINS_D7); //RS,Enable,D4,D5,D6,D7
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#ifdef LCD_I2C
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LCD_CLASS lcd(LCD_I2C_ADDRESS, LCD_WIDTH, LCD_HEIGHT, LCD_I2C_TYPE); //address, columns, rows, type
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#else
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LCD_CLASS lcd(LCD_PINS_RS, LCD_PINS_ENABLE, LCD_PINS_D4, LCD_PINS_D5,LCD_PINS_D6,LCD_PINS_D7); //RS,Enable,D4,D5,D6,D7
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#endif
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static void lcd_implementation_init()
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{
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byte bedTemp[8] =
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@ -111,7 +121,11 @@ static void lcd_implementation_init()
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B00000,
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B00000
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}; //thanks Sonny Mounicou
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lcd.begin(LCD_WIDTH, LCD_HEIGHT);
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#ifdef LCD_I2C
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lcd.init();
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#else
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lcd.begin(LCD_WIDTH, LCD_HEIGHT);
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#endif
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lcd.createChar(LCD_STR_BEDTEMP[0], bedTemp);
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lcd.createChar(LCD_STR_DEGREE[0], degree);
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lcd.createChar(LCD_STR_THERMOMETER[0], thermometer);
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