TSL2550.h

00001 /*
00002  * mbed library to use a TAOS TSL2550 Ambient Light Sensor
00003  * Copyright (c) 2011 Stefan Goeckeritz, 
00004  * RheinAhrCampus Remagen, Suedallee 2, 53424 Remagen
00005  * 
00006  * Released under the MIT License: http://mbed.org/license/mit
00007  */
00008  
00009 #ifndef TSL2550_H
00010 #define TSL2550_H
00011 
00012 #include "mbed.h"
00013 
00014 class TSL2550 : public Base {
00015 public:
00016     TSL2550(PinName p_sda, PinName p_scl);
00017     TSL2550(I2C& p_i2c);
00018 
00019     unsigned short get_ch0();
00020     unsigned short get_ch1();    
00021     double get_lux();
00022     void update();
00023 
00024 protected:
00025     void init();
00026     unsigned short twi_read (unsigned short, unsigned short);
00027     void twi_write (unsigned short, unsigned short);
00028 
00029     I2C i2c;
00030 
00031 private:
00032     double lux;
00033     unsigned short ch0, ch1;
00034 };
00035 
00036 #endif