File content as of revision 2:14568f6891b3:

/***************************************************
  This is a library for the VEML6070 UV-A Sensor

  Works with the VEML6070 sensor from Adafruit
  ----> https://www.adafruit.com/products/2899
  Or knock-off sensors from aliexpress

  These sensors use I2C to communicate, 2 pins are required to
  interface

  The VEML6070 is capable of alerting when UV levels rise past a pre-set level.
  It uses a "ACK" pin, and the SMBus Alert Response Address must be read to 
  clear the alert.
  If alert is turned on, you must clear the alert bit before you read/write the
  sensor.

  06/09/2017 - Initial mbed driver by Scott Roberts
 ****************************************************/


#ifndef VEML6070_H
#define VEML6070_H

#include "mbed.h"

// really unusual way of getting data, your read from two different addrs!
#define VEML6070_ADDR_H (0x39 << 1)
#define VEML6070_ADDR_L (0x38 << 1)

// three different integration times
typedef enum veml6070_integrationtime {
    VEML6070_HALF_T,
    VEML6070_1_T,
    VEML6070_2_T,
    VEML6070_4_T,
} veml6070_integrationtime_t;


class VEML6070
{
public:
    VEML6070(I2C& p_i2c);
    void begin(veml6070_integrationtime_t itime);
    uint16_t readUV(void);
protected:
    I2C  _i2c;
private:
    char dt[2];
};
#endif