BatteryMonitor.hpp

 
#ifndef BATTERY_MONITOR_H
#define BATTERY_MONITOR_H
 
#include <ti/drivers/I2C.h>
 
#define Board_AD7993_ADDR           (0x21)
#define AD7998_I2C_ADDRESS          (0x21)
#define AD4151_I2C_ADDRESS          (0x68)
// or it could be ...
// #define AD7998_I2C_ADDRESS          (0x22)
 
namespace Geometrics {
 
class BatteryMonitorReadings {
public:
    double VoltageTotal;
    double VoltageCell1;
    double VoltageCell2;
    double VoltageCell3;
    double Current;
};
 
 
 
 
class GeoBatteryMonitor
{
public:
  enum BatteryState {
      bsFirstOn = 0,                         // Power up only
      bsPowerOff,                        // Just as we switch off
      bsNoMag,                           // No mag but stay on
      bsLow,                             // About 30% left
      bsNormal,                          // Almost always here
      bsWiFiOnly,                        // Only WiFi powered
  };
  enum BatteryLevel {
      blUnknown,
      blNormal,
      blLow,
      blVeryLow,
      blCritical
  };
 
public:
   static void  Initialize               (const I2C_Handle      offboardI2cHandle);
   static enum  BatteryState VoltageLogic(float temperatureDegreesC);
   static void  InitADC                  (void);
   static void  ConvertAllAdcChannels    (void);
   static int   TemperatureAdjustedBatteryPercentage (float batteryVoltage, float temperatureDegreesC);
   static float  Get30PercentVoltage     (float temperatureDegreesC);
   static double FindLowestCell          (int batteryIndex);
 
   static BatteryLevel  sBatteryLevel;
   static unsigned      sBatteryPercentage;
   static BatteryState  sBatteryState;
   static float         sVoltageForPercentageCalc;
 
   #if (GEO_7998_BATTERY_MONITOR == GEO_TRUE)
   static BatteryMonitorReadings sReadings[2];
   #else
   static BatteryMonitorReadings sReadings[1];
   #endif
};
 
}
 
#endif