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119 lines
2.0 KiB
C++
119 lines
2.0 KiB
C++
#pragma once
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//
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// FILE: MINMAX.h
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// AUTHOR: Rob Tillaart
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// VERSION: 0.1.3
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// DATE: 2021-10-14
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// PURPOSE: MINMAX library - simple peak finder
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#include "Arduino.h"
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#define MINMAX_LIB_VERSION (F("0.1.3"))
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#define MINMAX_NO_CHANGE 0X00
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#define MINMAX_MIN_CHANGED 0X01
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#define MINMAX_MAX_CHANGED 0X02
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#define MINMAX_RESET_DONE 0X80
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class MINMAX
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{
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public:
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MINMAX()
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{
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reset();
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_resetCount = 0;
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_callback = NULL;
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}
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uint8_t add(const float value)
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{
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uint8_t rv = MINMAX_NO_CHANGE;
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_lastValue = value;
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if ((_resetCount != 0) && (_resetCount == _count))
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{
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reset();
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rv |= MINMAX_RESET_DONE;
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}
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if ((value < _minimum) || (_count == 0))
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{
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_minimum = value;
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_lastMin = millis();
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rv |= MINMAX_MIN_CHANGED;
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}
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if ((value > _maximum) || (_count == 0))
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{
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_maximum = value;
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_lastMax = millis();
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rv |= MINMAX_MAX_CHANGED;
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}
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_count++;
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if ((rv != MINMAX_NO_CHANGE) && (_callback != NULL)) _callback();
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return rv;
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}
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void reset()
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{
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_lastValue = 0;
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_minimum = 0;
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_maximum = 0;
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_count = 0;
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_lastMin = 0;
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_lastMax = 0;
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}
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void addCallBack( void (* func)(void) )
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{
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_callback = func;
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};
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void autoReset(uint32_t count) // obsolete 0.2.0
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{
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setAutoResetCount(count);
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};
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void setAutoResetCount(uint32_t count)
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{
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_resetCount = count;
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};
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uint32_t getAutoResetCount()
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{
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return _resetCount;
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};
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float lastValue() { return _lastValue; };
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float minimum() { return _minimum; };
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float maximum() { return _maximum; };
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uint32_t count() { return _count; };
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uint32_t lastMin() { return _lastMin; };
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uint32_t lastMax() { return _lastMax; };
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private:
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float _lastValue;
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float _minimum;
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float _maximum;
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uint32_t _count;
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uint32_t _resetCount;
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void (* _callback)(void);
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uint32_t _lastMin;
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uint32_t _lastMax;
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};
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// -- END OF FILE --
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