Voltage.h

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/*
   Copyright (C) 2018 SFini

   This program is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation, either version 3 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/
#define ANALOG_FACTOR 0.03 


class MyVoltage
{
protected:
   MyOptions &myOptions;        
   MyData    &myData;           

   long       lowPowerStartSec; 

public:
   MyVoltage(MyOptions &options, MyData &data);

   bool begin();

   void readVoltage();
};

/* ******************************************** */

MyVoltage::MyVoltage(MyOptions &options, MyData &data)
   : myOptions(options)
   , myData(data)
   , lowPowerStartSec(0)
{
}

bool MyVoltage::begin()
{
   MyDbg(F("MyVoltage::begin"));
   pinMode(A0, INPUT);
   myData.voltage    = ANALOG_FACTOR * analogRead(A0); // Volt
   myData.isLowPower = myData.voltage < myOptions.powerSaveModeVoltage;
   lowPowerStartSec  = millis() / 1000;
}

void MyVoltage::readVoltage()
{
   bool isLowPower = false;
   long currSec    = millis() / 1000;
   
   myData.voltage = ANALOG_FACTOR * analogRead(A0); // Volt
   isLowPower     = myData.voltage < myOptions.powerSaveModeVoltage;

   if (myData.isLowPower && !isLowPower) { // Change to high power
      long lowPowerSec = currSec - lowPowerStartSec;

      myData.rtcData.lowPowerActiveTimeSec += lowPowerSec;
      if (myData.isPowerOn) {
         myData.rtcData.lowPowerPowerOnTimeSec += lowPowerSec;
      }
      MyDbg((String) F("Change to high power (V): ") + String(myData.voltage, 2));
   }
   if (!myData.isLowPower && isLowPower) { // Change to low power
      lowPowerStartSec = currSec;
      MyDbg((String) F("Change to low power (V): ") + String(myData.voltage, 2));
   }
   myData.isLowPower = isLowPower;
}