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https://github.com/RobTillaart/Arduino.git
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51 lines
774 B
C++
51 lines
774 B
C++
//
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// FILE: PCF8574.H
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// AUTHOR: Rob Tillaart
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// DATE: 02-febr-2013
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// VERSION: 0.1.02
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// PURPOSE: I2C PCF8574 library for Arduino
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// URL:
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//
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// HISTORY:
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// see PCF8574.cpp file
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//
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#ifndef _PCF8574_H
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#define _PCF8574_H
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#if defined(ARDUINO) && ARDUINO >= 100
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#include "Arduino.h"
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#else
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#include "WProgram.h"
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#endif
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#define PCF8574_LIB_VERSION "0.1.02"
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class PCF8574
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{
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public:
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PCF8574(int address);
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uint8_t read8();
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uint8_t read(uint8_t pin);
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uint8_t value();
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void write8(uint8_t value);
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void write(uint8_t pin, uint8_t value);
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void toggle(uint8_t pin);
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void shiftRight(uint8_t n=1);
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void shiftLeft(uint8_t n=1);
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int lastError();
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private:
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int _address;
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uint8_t _data;
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int _error;
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};
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#endif
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//
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// END OF FILE
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//
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