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56 lines
1.3 KiB
C++
56 lines
1.3 KiB
C++
#pragma once
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// FILE: PinOutGroup.h
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// AUTHOR: Rob dot Tillaart at gmail dot com
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// VERSION: 0.1.1
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// DATE: 2017-04-26
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// PURPOSE: PinOutGroup library for Arduino
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// HISTORY: See PinOutGroup.cpp
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//
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#include "Arduino.h"
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#define PINOUTGROUP_LIB_VERSION "0.1.1"
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// smaller MAXSIZE will reduce memory footprint with ditto bytes.
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#ifndef PINOUTGROUP_MAXSIZE
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#define PINOUTGROUP_MAXSIZE 16
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#endif
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class PinOutGroup
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{
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public:
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PinOutGroup();
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// enables one to reset at he pinGroup and repopulate it
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void clear();
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// adds a predefined array of pin numbers to the PinOutGroup
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// sets all to (LOW, HIGH)
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bool add(uint8_t sz, uint8_t* ar, uint8_t value = LOW);
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// adds a single pin to the PinOutGroup, default to LOW.
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bool add(uint8_t pin, uint8_t value = LOW);
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// set up to 16 pins "simultaneously" in one call.
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uint8_t write(uint16_t value);
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// write to a single pin while maintaining internal admin
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uint8_t write(uint8_t idx, uint8_t value);
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// retrieve the last set value
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uint16_t read() { return _lastValue; };
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uint8_t size() { return _size; };
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// check how many free "slots" there are...
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uint8_t free() { return PINOUTGROUP_MAXSIZE - _size; };
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private:
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uint16_t _lastValue = 0;
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uint8_t _pins[PINOUTGROUP_MAXSIZE];
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uint8_t _size = 0;
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};
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// -- END OF FILE --
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