Seeed_VEML6070.h

#ifndef _SEEED_VE_H
#define _SEEED_VE_H

#include "Arduino.h"
#include "Wire.h"


#ifndef SEEED_DN_DEFINES
#define SEEED_DN_DEFINES

#ifdef ARDUINO_SAMD_VARIANT_COMPLIANCE
    #define SERIAL_DB SerialUSB
#else
    #define SERIAL_DB Serial
#endif


typedef int            s32;
typedef long unsigned int   u32;
typedef short          s16;
typedef unsigned short u16;
typedef char           s8;
typedef unsigned char  u8;

typedef enum {
    NO_ERROR = 0,
    ERROR_PARAM = -1,
    ERROR_COMM = -2,
    ERROR_OTHERS = -128,
} err_t;


#define CHECK_RESULT(a,b)   do{if(a=b)  {    \
            SERIAL_DB.print(__FILE__);    \
            SERIAL_DB.print(__LINE__);   \
            SERIAL_DB.print(" error code =");  \
            SERIAL_DB.println(a);                   \
            return a;   \
        }}while(0)

#endif

#define ENABLE 1
#define DISABLE 0
#define INT_102_STEP    0
#define INT_145_STEP    1


#define IIC_ADDR_H      0X39
#define IIC_ADDR_L      0X38
#define IIC_ADDR_ARA    0X0C




/*Three IIC address,Different functions are implemented by different addresses*/
#define ENABLE_BIT          0X01
#define INT_ENABLE_BIT      0X20
#define THRES_BIT           0X10

#define INTEGRA_BIT         0X0C

/** Divide UV index into five levels:LOW,MODERATE,HIGH,VERY_HIGH,EXTREME.

*/
typedef enum {
    LOW_LEVEL = 0,
    MODERATE,
    HIGH_LEVEL,
    VERY_HIGH,
    EXTREME,
} RISK_LEVEL;


/** Tntegration time,When Rset =300kΩ，T=125ms，Rset = 600KΩ,T=-250ms

 * */
typedef enum {
    HALF_OF_T = 0X00,
    ONE_T = 0X04,
    TWO_T = 0X08,
    FOUR_T = 0X0C,
} integration_time_t;



class VEML6070 {
  public:
    VEML6070();
    ~VEML6070() {}
    err_t clear_ack();
    err_t set_cmd_reg();
    err_t read_step(u16& step);

    err_t init();
    err_t disable();
    err_t enable();
    err_t set_interrupt(bool thre, bool stat);
    err_t set_integra_time(integration_time_t T);
    void wait_for_ready();
    RISK_LEVEL convert_to_risk_level(u16 uvs_step);
  private:
    u8 addr_h;
    u8 addr_l;
    u8 addr_ara;
    u8 cmd_reg;
};








#endif