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ston1th 2017-11-05 18:30:54 +01:00
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libraries/LiquidCrystal_I2C2004V1/diff.txt Normal file
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< //YWROBOT
< //last updated on 26/11/2010
< //Tim Starling Fix the reset bug (Thanks Tim)
< //wiki doc http://www.dfrobot.com/wiki/index.php?title=I2C/TWI_LCD1602_Module_(SKU:_DFR0063)
< //Support Forum: http://www.dfrobot.com/forum/
<
---
> // LiquidCrystal_I2C V2.0
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< #include "WProgram.h"
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<
---
> #include "Arduino.h"
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< delay(50);
---
> delayMicroseconds(50000);
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< // we start in 8bit mode, try to set 4 bit mode
< write4bits(0x03 << 4);
< delayMicroseconds(4500); // wait min 4.1ms
<
< // second try
< write4bits(0x03 << 4);
< delayMicroseconds(4500); // wait min 4.1ms
<
< // third go!
< write4bits(0x03 << 4);
< delayMicroseconds(150);
<
< // finally, set to 4-bit interface
< write4bits(0x02 << 4);
---
> // 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);
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< inline void LiquidCrystal_I2C::write(uint8_t value) {
---
> inline size_t LiquidCrystal_I2C::write(uint8_t value) {
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> return 0;
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< uint8_t highnib=value&0xf0;
< uint8_t lownib=(value<<4)&0xf0;
< write4bits((highnib)|mode);
< write4bits((lownib)|mode);
---
> uint8_t highnib=value>>4;
> uint8_t lownib=value & 0x0F;
> write4bits((highnib)|mode);
> write4bits((lownib)|mode);
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< Wire.send((int)(_data) | _backlightval);
---
> Wire.write((int)(_data) | _backlightval);