Diff: CurrentTemperatureScreen.h

Revision:

0:da2b8c7a1ec1

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/CurrentTemperatureScreen.h	Mon May 11 15:25:52 2015 +0000
@@ -0,0 +1,190 @@
+/**
+@file CurrentTemperatureScreen.h
+ 
+
+
+*/
+#ifndef CURRENTTEMPERATURESCREEN_H
+#define CURRENTTEMPERATURESCREEN_H
+
+#include "ParameterController.h"
+#include "Inputs.h"
+#include "Sensors.h"
+
+/**
+@brief Displays the current temperature along with it's sentiment on the LCD screen\n
+@brief It consists of a parameter controller\n 
+@brief temperature is shown in deg cel by default but can be toggled to deg fahr\n
+@brief whent the enter button is pressed\n
+@author Augustine Kizito K\n
+@date April 2015
+*/
+
+
+
+
+class CurrentTemperatureScreen : public ParameterController // inherit ParameterController Properties
+{
+private:
+    void setTemperatureSentiment( float temperature); // get temperature sentiment
+    void temperatureUpdate();  // update the temperature
+    float getCurrentTemperature(); // get the current temperature
+    void changeUnits(); // change units form celsius to fahrenheit
+    void onBack(); // user pressed the back button
+    void onEnter(); // user pressed the enter button
+
+    bool changeScreen; // tracks if the user pressed a button that changes screen
+    int nextScreen; // tracks whether the user wants to go to
+    //the previous screen or next screen
+    bool celsius; // tracks the current units of temperature
+    Ticker tempTicker; // create ticker object
+
+
+public:
+    /**
+    This function manages the execution of the temperature screen
+    
+    @ returns
+     -1 - navigate to previous screen
+    */
+    int start();
+    /**
+    This function creates an instance of the current temperature scren
+    
+    */
+    CurrentTemperatureScreen()
+        :ParameterController( "Temperature", // Parameter
+                              "Deg Cel") // Units
+    {} // initialises parameter controller
+
+};
+
+int CurrentTemperatureScreen::start()
+{
+
+    changeScreen = false;
+    celsius = true; // units are in celsius
+
+    float currentTemperature = getCurrentTemperature(); // get current temperature
+
+    backButton.mode(PullDown); // activate pullDown resistor
+    enterButton.mode(PullDown); // activate pullDown resistor
+
+    backButton.rise(this,&CurrentTemperatureScreen::onBack); // call onBack when the back button is pressed
+    enterButton.rise(this,&CurrentTemperatureScreen::onEnter); // call onBack when the back button is pressed
+
+    debounce.start(); // start the debouncing timer
+
+    tempTicker.attach(this, &CurrentTemperatureScreen::temperatureUpdate, 10); // update parameter every 30 seconds
+
+    // initialise the ParameterController appropriately
+    ParameterController::setValue(currentTemperature);
+    setTemperatureSentiment(currentTemperature);
+    
+    // Launch the Parameter Controller
+    ParameterController::showInfo();
+
+    while(changeScreen == false) { // shows the screen until the user presses the back button
+        // mbed goes to sleep to save power
+        Sleep();
+    }
+
+    // detach interrupts
+    backButton.rise(NULL);
+    enterButton.rise(NULL);
+    tempTicker.detach();
+
+    return nextScreen;
+}
+
+void CurrentTemperatureScreen::temperatureUpdate()
+{
+
+    float currentTemperature = getCurrentTemperature(); // get current temperature
+    setTemperatureSentiment(currentTemperature); // update the temperature sentiment
+
+    if (!celsius) { // units are in celsius
+        //convert to fahrenheit
+        currentTemperature = (currentTemperature*9/5)+32;
+    }
+
+    // initialise the ParameterController appropriately
+    ParameterController::setValue(currentTemperature);
+    ParameterController::updateInfo();
+
+}
+
+
+void CurrentTemperatureScreen::setTemperatureSentiment(float temperature)
+{
+
+    if (temperature > 35) { // Blazing if temperature is greature than 35 Deg
+        ParameterController::setSentiment("Blazing   ");
+    } else if ( temperature <= 35 && temperature > 25 ) {
+        ParameterController::setSentiment("Hot       "); // Hot if temperature is between 35 and 25 Deg Cel
+    } else if ( temperature <= 25 && temperature > 20 ) {
+        ParameterController::setSentiment("Warm      "); // Warm if temperature is between 25 and 20 Deg Cel
+    } else if ( temperature <= 20 && temperature > 15 ) {
+        ParameterController::setSentiment("Cool      "); // Cool if temperature is between 20 and 15 Deg Cel
+    } else if ( temperature <= 15 && temperature >= 10 ) {
+        ParameterController::setSentiment("Cold      "); // Cold if temperature is between 15 and 10 Deg Cel
+    } else {
+        ParameterController::setSentiment("Frigid    "); // Frigid if temperature is less than 10
+    }
+
+}
+
+float CurrentTemperatureScreen::getCurrentTemperature()
+{
+    float temperature = getTemperature(); // read temperature from BMP180 sensor
+    return temperature;
+}
+
+void CurrentTemperatureScreen::onBack()
+{
+    if (debounceSuccess()) { // debugging successful
+        playSound(); // play sound from buzzer
+        nextScreen = -1;
+        changeScreen = true; // user wants to view a different screen
+        debounce.reset(); // reset the timer
+    }
+
+
+}
+
+void CurrentTemperatureScreen::onEnter()
+{
+    if (debounceSuccess()) { // debugging successful
+        playSound(); // sound the buzzer
+        changeUnits(); // change the units
+        debounce.reset(); // reset the timer
+    }
+
+}
+
+void CurrentTemperatureScreen::changeUnits()
+{
+    // toggle the units form Cel to Fahr and back
+    celsius = !celsius;
+
+    float currentTemperature = getCurrentTemperature(); // get current temperature
+    setTemperatureSentiment(currentTemperature);
+
+    if (celsius) { // Units are in celsius
+        ParameterController::setUnit("Deg Cel ");
+    } else { // Units are in Fahrenheit
+        ParameterController::setUnit("Deg Fahr");
+        //convert to fahrenheit
+        currentTemperature = (currentTemperature*9/5)+32;
+
+    }
+
+    // update the ParameterController appropriately
+    ParameterController::setValue(currentTemperature);
+    ParameterController::updateInfo();
+
+}
+
+
+
+#endif
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