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43 lines
857 B
C
43 lines
857 B
C
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#ifndef MCP23017_H
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#define MCP23017_H
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//
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// FILE: MCP23017.h
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// AUTHOR: Rob Tillaart
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// VERSION: 0.1.0
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// PURPOSE: library for MCP23017 I2C module
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// LICENSE: MIT
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#include "Arduino.h"
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#include "Wire.h"
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#define MCP23017_LIB_VERSION "0.1.0"
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class MCP23017
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{
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public:
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MCP23017(uint8_t addr);
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#if defined(ESP8266) || defined(ESP32)
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void begin(const uint8_t dataPin, const uint8_t clockPin);
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#endif
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void begin();
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// single pin interface
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void pinMode(uint8_t pin, uint8_t value);
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void digitalWrite(uint8_t pin, uint8_t value);
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uint8_t digitalRead(uint8_t pin);
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// 8 pins interface
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void pinMode8(uint8_t port, uint8_t value);
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void write8(uint8_t port, uint8_t value);
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int read8(uint8_t port);
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private:
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void writeReg(uint8_t reg, uint8_t value);
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uint8_t readReg(uint8_t reg);
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uint8_t _addr;
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};
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#endif
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// -- END OF FILE --
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