text: #include "MagneticSensorAnalog.h"
  
  /** MagneticSensorAnalog(uint8_t _pinAnalog, int _min, int _max)
   * @param _pinAnalog  the pin that is reading the pwm from magnetic sensor
   * @param _min_raw_count  the smallest expected reading.  Whilst you might expect it to be 0 it is often ~15.  Getting this wrong results in a small click once per revolution
   * @param _max_raw_count  the largest value read.  whilst you might expect it to be 2^10 = 1023 it is often ~ 1020. Note: For ESP32 (with 12bit ADC the value will be nearer 4096)
   */
  MagneticSensorAnalog::MagneticSensorAnalog(uint8_t _pinAnalog, int _min_raw_count, int _max_raw_count){
  
    pinAnalog = _pinAnalog;
  
    cpr = _max_raw_count - _min_raw_count;
    min_raw_count = _min_raw_count;
    max_raw_count = _max_raw_count;
  
    if(pullup == Pullup::USE_INTERN){
      pinMode(pinAnalog, INPUT_PULLUP);
    }else{
      pinMode(pinAnalog, INPUT);
    }
  
  }
  
  
  void MagneticSensorAnalog::init(){
  	raw_count = getRawCount();
  
    this->Sensor::init(); // call base class init
  }
  
  //  Shaft angle calculation
  //  angle is in radians [rad]
  float MagneticSensorAnalog::getSensorAngle(){
    // raw data from the sensor
    raw_count = getRawCount();   
    return ( (float) (raw_count) / (float)cpr) * _2PI;
  }
  
  // function reading the raw counter of the magnetic sensor
  int MagneticSensorAnalog::getRawCount(){
  	return analogRead(pinAnalog);
  }
  