TemperatureController.h

00001 #ifndef __TEMPERATURECONTROLLER_H__
00002 #define __TEMPERATURECONTROLLER_H__
00003 
00004 #include "mbed.h"
00005 #include "settings.h"
00006 #include "SensorController.h"
00007 
00008 
00009 /** The TemperatureController measures the Vernier temperature probe.
00010  */
00011 class TemperatureController : public SensorController {
00012     public:
00013         /**
00014          * Constructs a new TemperatureController that measures and averages the value from the temperature probe.
00015          * @param threaded whether or not the controller should be threaded.
00016          * @param interval_ms delay between each iteration, only if threaded is set to \a true.
00017          */
00018         TemperatureController(bool threaded, int interval_ms) : SensorController(threaded, interval_ms) {printf("Initiate Temperature Controller\r\n");}
00019 
00020         /** Returns the Temperature measured (in Celsius) during the last update() */
00021         virtual float getValue();
00022 
00023         /** Measures the Temperature N times and stores the average value of these measurements. */
00024         virtual void update();
00025 
00026         /** Returns "TemperatureController" */
00027         virtual std::string getName();
00028         
00029         virtual void setLed(bool);
00030 
00031     private:
00032         /**
00033          * The latest temperature measurement, average of N measurements.
00034          */
00035         float temperature;
00036 
00037         /**
00038          * This reads the temperature.
00039          * @return Return the average temperature over N reads in Celsius.
00040          */
00041         static float readSensor();
00042 
00043         /**
00044          * Returns value read from mbed to Celsius.
00045          * @return temperature in Celsius.
00046          */
00047         static float analoginToCelsius(float);
00048 
00049         /**
00050          * Adjusts value for measurement mistakes.
00051          * @return adjusted value in volt.
00052          */
00053         static float getOffset(float);
00054 
00055 };
00056 
00057 #endif