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63 lines
1.7 KiB
63 lines
1.7 KiB
/**
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* @file bombatuino_INPUT_74HC4051.h
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*
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* @author Lukas Haubaum (lukas@haubaum.de)
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*
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* @date February, 2013
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*
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* @brief arduino library for reading inputs from 74HC4051 multiplexer
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*
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* library is for specialiced use: all I/O ports are used as analog inputs, values are stored and a callback function is called, when a value changes
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*
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* */
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#ifndef bombatuino_INPUT_74HC4051_h
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#define bombatuino_INPUT_74HC4051_h
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#define INPUT_74HC4051_TOLERANCE 0 /**< I/O DIRECTION REGISTER PORT A - Controls the direction of the data I/O. */
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#if !defined(CallbackFunction)
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/**
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* callback function
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*
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* @param address
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* @param pin
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* @param value
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*/
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typedef void (*CallbackFunction)(int,int,int);
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#endif
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class INPUT_74HC4051
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{
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public:
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/**
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* initalize the class, should be called in setup() function
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*
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* @param analog input pin on arduino, connected Z pin here
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* @param digital output pin for S0
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* @param digital output pin for S0
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* @param digital output pin for S0
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* @param callback function
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*/
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void begin(uint8_t analog, uint8_t s0, uint8_t s1, uint8_t s2,CallbackFunction cbF);
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/**
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* read values and call callback function on change, should be called in loop()
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*/
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void loop(void);
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/**
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* get value of specific pin (0-7)
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*
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* @param pin
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* @return value of pin
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*/
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int getSpecificValue(uint8_t pin);
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private:
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uint8_t _analog; /**< analog input pin on arduino, connected Z pin here */
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uint8_t _s0; /**< digital output pin for S0 */
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uint8_t _s1; /**< digital output pin for S0 */
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uint8_t _s2; /**< digital output pin for S0 */
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int _value[8]; /**< read values */
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CallbackFunction _callbackFunction; /**< callback function */
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};
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#endif
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