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Extend WIRE definition to support ATTINY85 #72

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Extend WIRE definition to support ATTINY85 #72

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24 changes: 17 additions & 7 deletions LiquidCrystal_I2C.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -2,11 +2,18 @@

#include "LiquidCrystal_I2C.h"
#include <inttypes.h>

#ifdef __AVR_ATtiny85__
#define WIRE TinyWireM
#else
#define WIRE Wire
#endif

#if defined(ARDUINO) && ARDUINO >= 100

#include "Arduino.h"

#define printIIC(args) Wire.write(args)
#define printIIC(args) WIRE.write(args)
inline size_t LiquidCrystal_I2C::write(uint8_t value) {
send(value, Rs);
return 1;
Expand All @@ -15,14 +22,17 @@ inline size_t LiquidCrystal_I2C::write(uint8_t value) {
#else
#include "WProgram.h"

#define printIIC(args) Wire.send(args)
#define printIIC(args) WIRE.send(args)
inline void LiquidCrystal_I2C::write(uint8_t value) {
send(value, Rs);
}

#endif
#include "Wire.h"

#ifdef __AVR_ATtiny85__
#include <TinyWireM.h>
#else
#include <Wire.h>
#endif


// When the display powers up, it is configured as follows:
Expand Down Expand Up @@ -63,7 +73,7 @@ void LiquidCrystal_I2C::init(){

void LiquidCrystal_I2C::init_priv()
{
Wire.begin();
WIRE.begin();
_displayfunction = LCD_4BITMODE | LCD_1LINE | LCD_5x8DOTS;
begin(_cols, _rows);
}
Expand Down Expand Up @@ -265,9 +275,9 @@ void LiquidCrystal_I2C::write4bits(uint8_t value) {
}

void LiquidCrystal_I2C::expanderWrite(uint8_t _data){
Wire.beginTransmission(_Addr);
WIRE.beginTransmission(_Addr);
printIIC((int)(_data) | _backlightval);
Wire.endTransmission();
WIRE.endTransmission();
}

void LiquidCrystal_I2C::pulseEnable(uint8_t _data){
Expand Down
5 changes: 5 additions & 0 deletions LiquidCrystal_I2C.h
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Original file line number Diff line number Diff line change
Expand Up @@ -4,7 +4,12 @@

#include <inttypes.h>
#include "Print.h"

#ifdef __AVR_ATtiny85__
#include <TinyWireM.h>
#else
#include <Wire.h>
#endif

// commands
#define LCD_CLEARDISPLAY 0x01
Expand Down