Adafruit_INA237.h

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#ifndef _ADAFRUIT_INA237_H
#define _ADAFRUIT_INA237_H

#include <Adafruit_INA2xx.h>

#define INA237_I2CADDR_DEFAULT 0x40 
#define INA237_DEVICE_ID 0x238      
#define INA238_DEVICE_ID 0x238      


typedef enum _ina237_alert_type {
  INA237_ALERT_CONVERSION_READY = 0x1, 
  INA237_ALERT_OVERTEMPERATURE = 0x2,  
  INA237_ALERT_OVERPOWER = 0x4,        
  INA237_ALERT_UNDERVOLTAGE = 0x8,     
  INA237_ALERT_OVERVOLTAGE = 0x10,     
  INA237_ALERT_UNDERSHUNT = 0x20,      
  INA237_ALERT_OVERSHUNT = 0x40,       
  INA237_ALERT_NONE = 0x0,             
} INA237_AlertType;

class Adafruit_INA237 : public Adafruit_INA2xx {
 public:
  Adafruit_INA237();
  bool begin(uint8_t i2c_addr = INA237_I2CADDR_DEFAULT,
             TwoWire* theWire = &Wire, bool skipReset = false);

  // INA237/INA238 specific functions
  INA237_AlertType getAlertType(void);
  void setAlertType(INA237_AlertType alert);
  float readDieTemp(void) override;
  float readBusVoltage(void) override;
  float readShuntVoltage(void) override;
  float readCurrent(void) override;
  float readPower(void) override;
  void setShunt(float shunt_res = 0.1, float max_current = 3.2) override;

 protected:
  void _updateShuntCalRegister(void) override;
};

#endif