Akta3d_Potentiometer.h

#ifndef Akta3d_Potentiometer_h
#define Akta3d_Potentiometer_h

#include "Arduino.h"

class Akta3d_Potentiometer
{
  public:
    /*
      Initialize a potentiometer return a value between minValue and maxValue
      @param pin: Anolog pin
      @param minValue: minimal value returned
      @param maxValue: maximal value returned
      @param minA: minimal value returned by the analog pin
      @param maxA: maximal value returned by the analog pin
      @param lowPassBCoeff: [0,1] 
        new_value = lowPassACoeff*old_value + lowPassBCoeff*new_value
        where lowPassACoeff+lowPassBCoeff=1, and the smaller the lowPassBCoeff (ie. lowPassBCoeff=0.2) the bigger the filtering effect.
      @param updateValueEachMs: On Wemos mini D1 the analog pin A0 is used 
      The ADC inside ESP SoC is used also for WiFi stuff IMHO, we should not read the value on each loop to have fonctional WIFI
    */
    Akta3d_Potentiometer(uint16_t pin, int minValue, int maxValue, int minA = 0, int maxA = 1024, float lowPassBCoeff = 0.05, int updateValueEachMs = 50);
    void update();
    bool changed();
    int value();
    
  private:
    uint16_t _pin;
    int _minA;
    int _maxA;
    int _minValue;
    int _maxValue;
    float _bCoeff;
    
    int _newComputedValue;
    int _lastComputedValue;
    int _lastAnalogValue;

    int _lastUpdate;
    int _updateValueEachMs;
};

#endif