Diff: ENVIROMENTAL/VEML6070.h

Revision:

0:f8a9cceb4186

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ENVIROMENTAL/VEML6070.h	Mon Jun 10 12:50:02 2019 +0000
@@ -0,0 +1,50 @@
+/***************************************************
+  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