Scott Roberts / VEML6070

Driver for Vishay VEML6070 UV-A Sensor

Dependents:   FTHR_SensorHub

VEML6070.h@2:14568f6891b3, 2017-06-21 (annotated)

Committer:
smatthew
Date:
Wed Jun 21 01:05:57 2017 +0000
Revision:
2:14568f6891b3
Parent:
0:820bf4c174e1 
commit;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
smatthew 0:820bf4c174e1 1 /***************************************************
smatthew 0:820bf4c174e1 2 This is a library for the VEML6070 UV-A Sensor
smatthew 0:820bf4c174e1 3
smatthew 0:820bf4c174e1 4 Works with the VEML6070 sensor from Adafruit
smatthew 0:820bf4c174e1 5 ----> https://www.adafruit.com/products/2899
smatthew 0:820bf4c174e1 6 Or knock-off sensors from aliexpress
smatthew 0:820bf4c174e1 7
smatthew 0:820bf4c174e1 8 These sensors use I2C to communicate, 2 pins are required to
smatthew 0:820bf4c174e1 9 interface
smatthew 0:820bf4c174e1 10
smatthew 0:820bf4c174e1 11 The VEML6070 is capable of alerting when UV levels rise past a pre-set level.
smatthew 2:14568f6891b3 12 It uses a "ACK" pin, and the SMBus Alert Response Address must be read to
smatthew 2:14568f6891b3 13 clear the alert.
smatthew 2:14568f6891b3 14 If alert is turned on, you must clear the alert bit before you read/write the
smatthew 2:14568f6891b3 15 sensor.
smatthew 0:820bf4c174e1 16
smatthew 0:820bf4c174e1 17 06/09/2017 - Initial mbed driver by Scott Roberts
smatthew 0:820bf4c174e1 18 ****************************************************/
smatthew 0:820bf4c174e1 19
smatthew 0:820bf4c174e1 20
smatthew 0:820bf4c174e1 21 #ifndef VEML6070_H
smatthew 0:820bf4c174e1 22 #define VEML6070_H
smatthew 0:820bf4c174e1 23
smatthew 0:820bf4c174e1 24 #include "mbed.h"
smatthew 0:820bf4c174e1 25
smatthew 0:820bf4c174e1 26 // really unusual way of getting data, your read from two different addrs!
smatthew 0:820bf4c174e1 27 #define VEML6070_ADDR_H (0x39 << 1)
smatthew 0:820bf4c174e1 28 #define VEML6070_ADDR_L (0x38 << 1)
smatthew 0:820bf4c174e1 29
smatthew 0:820bf4c174e1 30 // three different integration times
smatthew 0:820bf4c174e1 31 typedef enum veml6070_integrationtime {
smatthew 0:820bf4c174e1 32 VEML6070_HALF_T,
smatthew 0:820bf4c174e1 33 VEML6070_1_T,
smatthew 0:820bf4c174e1 34 VEML6070_2_T,
smatthew 0:820bf4c174e1 35 VEML6070_4_T,
smatthew 0:820bf4c174e1 36 } veml6070_integrationtime_t;
smatthew 0:820bf4c174e1 37
smatthew 0:820bf4c174e1 38
smatthew 0:820bf4c174e1 39 class VEML6070
smatthew 0:820bf4c174e1 40 {
smatthew 0:820bf4c174e1 41 public:
smatthew 0:820bf4c174e1 42 VEML6070(I2C& p_i2c);
smatthew 0:820bf4c174e1 43 void begin(veml6070_integrationtime_t itime);
smatthew 0:820bf4c174e1 44 uint16_t readUV(void);
smatthew 0:820bf4c174e1 45 protected:
smatthew 0:820bf4c174e1 46 I2C _i2c;
smatthew 0:820bf4c174e1 47 private:
smatthew 0:820bf4c174e1 48 char dt[2];
smatthew 0:820bf4c174e1 49 };
smatthew 0:820bf4c174e1 50 #endif