openXsensor/oXs_ads1115.h

   1 #ifndef OXS_ADS1115_h
   2 #define OXS_ADS1115_h
   3
   4 #include <Arduino.h>
   5 #include "oXs_config_basic.h"
   6 #include "oXs_config_advanced.h"
   7 #include "oXs_config_macros.h"
   8 #include "I2C.h"
   9 #include "oXs_curr.h"
  10 #include "oXs_4525.h"
  11
  12 // values to say how to use a ads measurement
  13 #define ADS_VOLT_1 0
  14 #define ADS_VOLT_2 1
  15 #define ADS_VOLT_3 2
  16 #define ADS_VOLT_4 3
  17 #define ADS_VOLT_5 4
  18 #define ADS_VOLT_6 5
  19 #define ADS_AIRSPEED 6
  20 #define ADS_CURRENT 7
  21 #define ADS_NOT_USED 8
  22
  23 // values to configure the ads multiplexer
  24 #define A0_TO_A1 0
  25 #define A0_TO_A3 1
  26 #define A1_TO_A3 2
  27 #define A2_TO_A3 3
  28 #define A0_TO_GND 4
  29 #define A1_TO_GND 5
  30 #define A2_TO_GND 6
  31 #define A3_TO_GND 7
  32 #define ADS_OFF 8
  33
  34 // values to configure the programable ads gain amplifier
  35 #define MV6144 0
  36 #define MV4096 1
  37 #define MV2048 2
  38 #define MV1024 3
  39 #define MV512 4
  40 #define MV256 5
  41
  42 // value to configure the rate of ads conversion (value is the delay in msec that must be wait before getting the conversion ; this take care of the tolerance of 10% foreseen in the datasheet
  43 #define MS137 0
  44 #define MS69 1
  45 #define MS35 2
  46 #define MS18 3
  47 #define MS9 4
  48 #define MS5 5
  49 #define MS3 6
  50 #define MS2 7
  51
  52
  53   extern const uint8_t ads_Measure[4] ;
  54   extern const uint8_t ads_Gain[4] ;
  55   extern const uint8_t ads_Rate[4] ;
  56   extern const float ads_Offset[4] ;
  57   extern const float ads_Scale[4] ;
  58   extern const uint8_t ads_MaxCount[4] ;
  59
  60
  61   extern uint32_t ads_MilliAskConv  ;
  62   extern uint8_t ads_Addr;
  63   extern uint8_t ads_CurrentIdx ;
  64   extern uint8_t I2CErrorCodeAds1115 ;
  65   extern int32_t ads_SumOfConv[4] ; // summarise all conversion in order to calculate average
  66   extern uint8_t ads_Counter[4]  ;
  67   extern struct ONE_MEASUREMENT ads_Conv[4] ; //averaged conversion including offset and scale
  68   extern uint8_t ads_Last_Conv_Idx ;
  69
  70
  71
  72 class OXS_ADS1115 {
  73 public:
  74 #ifdef DEBUG
  75   OXS_ADS1115(uint8_t addr, HardwareSerial &print);
  76 #else
  77   OXS_ADS1115(uint8_t addr) ;
  78 #endif
  79
  80   void setup();
  81   boolean  readSensor( void ); //return true if an averaged has just been calculated
  82   void ads_requestNextConv(void) ;
  83   void ads_calculateCurrent(void) ;
  84   void ads_calculate_airspeed( int16_t ads_difPressureADC ) ;
  85 #if defined(AN_ADS1115_IS_CONNECTED) && (AN_ADS1115_IS_CONNECTED == YES ) && defined(ADS_MEASURE) && defined(ADS_CURRENT_BASED_ON)
  86   struct CURRENTDATA adsCurrentData ;
  87   float floatConsumedMilliAmps ; // in mA
  88 #endif
  89
  90 #if defined(AN_ADS1115_IS_CONNECTED) && (AN_ADS1115_IS_CONNECTED == YES ) && defined(ADS_MEASURE) && defined(ADS_AIRSPEED_BASED_ON)
  91   struct AIRSPEEDDATA adsAirSpeedData ;
  92 #endif
  93
  94 private:
  95 #ifdef DEBUG
  96   HardwareSerial* printer;
  97 #endif
  98 }; // end class OXS_ADS1115
  99
 100
 101
 102 #endif // OXS_ADS1115
 103
 104