Year Two Project ELEC 2645: Embedded Systems Project Portable Weather Station
Dependencies: BMP180 ConfigFile N5110 PowerControl beep mbed
Diff: WeatherApp.h
- Revision:
- 0:da2b8c7a1ec1
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/WeatherApp.h Mon May 11 15:25:52 2015 +0000
@@ -0,0 +1,912 @@
+/**
+
+@file WeatherApp.h
+
+*/
+
+
+#include "CurrentTemperatureScreen.h"
+#include "TemperatureScreen.h"
+#include "BrightnessScreen.h"
+#include "MainMenuScreen.h"
+#include "SettingsScreen.h"
+#include "TemperaturePlot.h"
+#include "LogScreen.h"
+#include "DurationScreen.h"
+#include "IntervalScreen.h"
+#include "LogOptionScreen.h"
+#include "TempViewLogScreen.h"
+#include "TemperatureLog.h"
+#include "SoundScreen.h"
+#include "Sensors.h"
+#include "PressureScreen.h"
+#include "PressurePlot.h"
+#include "CurrentPressureScreen.h"
+#include "PrsViewLogScreen.h"
+#include "PressureLog.h"
+#include "BatteryStatusScreen.h"
+#include "EthernetPowerControl.h"
+
+/**
+@brief This controls the entire weather application. It is the Navigation Controller
+@brief It determines which screen should be displayed when a button is selected
+@brief It also manages the status bar
+@author Augustine K Kizito
+@date April 2015
+*/
+
+
+class WeatherApp
+{
+private:
+ void appInitialise(); // initalises the weather app
+ void updateStatusBar(); // updates time and battery icon
+ void clearScreen(); // clears everything on the screen apart from the status bar
+ void initSound(); // initialises sound
+ void initBrightness(); // initialises lcd brightness
+
+ Ticker status; // updates the status bar at regular intervals
+public:
+ /**
+ Runs the Weather Application on the mbed
+
+ */
+ void run();
+
+};
+
+void WeatherApp::run()
+{
+ appInitialise();
+
+ // Objects for screens
+ MainMenuScreen menu;
+ TemperatureScreen temp;
+ PressureScreen prs;
+ CurrentTemperatureScreen currTemp;
+ CurrentPressureScreen currPrs;
+ BrightnessScreen bright;
+ SettingsScreen settings;
+ IntervalScreen tempInt;
+ IntervalScreen prsInt;
+ DurationScreen tempDur;
+ DurationScreen prsDur;
+ TemperaturePlot templot;
+ PressurePlot prsplot;
+ LogScreen logg;
+ LogOptionScreen optOne;
+ LogOptionScreen optTwo;
+ TemperatureLog tempLog;
+ PressureLog prsLog;
+ SoundScreen sound;
+ BatteryStatusScreen currBatt;
+
+ // these booleans allow the user to smoothly navigate between layers
+ // the main menu is the first layer, when the user selects an option they go into the second layer and so on.
+ bool backFirstLayer;
+ bool backSecondLayer;
+ bool backThirdLayer;
+ bool backFourthLayer;
+
+ while(1) {
+
+ switch(menu.start()) {
+
+ // Temperature
+ case 0:
+ backFirstLayer = false;
+ clearScreen();
+
+ while(!backFirstLayer) {
+
+ switch(temp.start()) {
+
+ // View Temp
+ case 0:
+ backSecondLayer = false;
+ clearScreen();
+
+ while(!backSecondLayer) {
+
+ switch(currTemp.start()) {
+
+ case -1:
+ clearScreen();
+ backSecondLayer = true;
+ break;
+ }
+ }
+ break;
+
+ //Realtime Plot
+ case 1:
+ backSecondLayer = false;
+ clearScreen();
+
+ while(!backSecondLayer) {
+
+ // Intervals
+
+ switch(tempInt.start()) {
+
+ // 1 second
+ case 0:
+ backThirdLayer = false;
+ clearScreen();
+
+ while(!backThirdLayer) {
+
+ switch(templot.start(0)) {
+
+ // Previous Screen
+ case -1:
+ backThirdLayer = true;
+ clearScreen();
+ break;
+
+ }
+
+ }
+ break;
+
+ // 5 seconds
+ case 1:
+ backThirdLayer = false;
+ clearScreen();
+
+ while(!backThirdLayer) {
+
+ switch(templot.start(1)) {
+
+ // Previous Screen
+ case -1:
+ backThirdLayer = true;
+ clearScreen();
+ break;
+
+ }
+
+ }
+ break;
+
+ // 10 seconds
+ case 2:
+ backThirdLayer = false;
+ clearScreen();
+
+ while(!backThirdLayer) {
+
+ switch(templot.start(2)) {
+
+ // Previous Screen
+ case -1:
+ backThirdLayer = true;
+ clearScreen();
+ break;
+
+ }
+
+ }
+ break;
+
+ // 30 seconds
+ case 3:
+ backThirdLayer = false;
+ clearScreen();
+
+ while(!backThirdLayer) {
+
+ switch(templot.start(3)) {
+
+ case -1:
+ backThirdLayer = true;
+ clearScreen();
+ break;
+
+ }
+
+ }
+ break;
+
+ //Previous Screen
+ case -1:
+ clearScreen();
+ backSecondLayer = true;
+ break;
+ }
+ }
+ break;
+
+ //Previous Screen
+ case -1:
+ backSecondLayer = false;
+ clearScreen();
+ backFirstLayer = true;
+ break;
+
+ }
+ }
+ break;
+
+ // Pressure
+ case 1:
+ backFirstLayer = false;
+ clearScreen();
+
+ while(!backFirstLayer) {
+
+ switch(prs.start()) {
+
+ // View Prs
+ case 0:
+ backSecondLayer = false;
+ clearScreen();
+
+ while(!backSecondLayer) {
+
+ switch(currPrs.start()) {
+
+ // Previous Screen
+ case -1:
+ backSecondLayer = true;
+ clearScreen();
+ break;
+
+ }
+
+ }
+ break;
+
+ // Plot Prs
+ case 1:
+ backSecondLayer = false;
+ clearScreen();
+
+ while(!backSecondLayer) {
+
+ switch(prsInt.start()) {
+
+ // 250 ms
+ case 0:
+ backThirdLayer = false;
+ clearScreen();
+
+ while(!backThirdLayer) {
+ switch(prsplot.start(0)) {
+
+ // Previous Screen
+ case -1:
+ backThirdLayer = true;
+ clearScreen();
+ break;
+
+ }
+
+
+ }
+ break;
+
+ // 500 ms
+ case 1:
+ backThirdLayer = false;
+ clearScreen();
+
+ while(!backThirdLayer) {
+ switch(prsplot.start(1)) {
+
+ // Previous Screen
+ case -1:
+ backThirdLayer = true;
+ clearScreen();
+ break;
+ }
+
+
+ }
+ break;
+
+ // 1 second
+ case 2:
+ backThirdLayer = false;
+ clearScreen();
+
+ while(!backThirdLayer) {
+ switch(prsplot.start(2)) {
+
+ // Previous Screen
+ case -1:
+ backThirdLayer = true;
+ clearScreen();
+ break;
+ }
+
+
+ }
+ break;
+
+ // 5 seconds
+ case 3:
+ backThirdLayer = false;
+ clearScreen();
+
+ while(!backThirdLayer) {
+ switch(prsplot.start(3)) {
+
+ // Previous Screen
+ case -1:
+ backThirdLayer = true;
+ clearScreen();
+ break;
+ }
+
+
+ }
+ break;
+
+ // Previous Screen
+ case -1:
+ backSecondLayer = true;
+ clearScreen();
+ break;
+ }
+ }
+ break;
+
+ // Previous Screen
+ case -1:
+ backFirstLayer = true;
+ clearScreen();
+ break;
+ }
+
+ }
+ break;
+
+ // Log
+ case 2:
+ backFirstLayer = false;
+ clearScreen();
+
+ while(!backFirstLayer) {
+
+ switch(logg.start()) {
+
+ // New Log
+ case 0:
+ backSecondLayer = false;
+ clearScreen();
+
+ while(!backSecondLayer) {
+
+ switch(optOne.start()) {
+
+ //Temperature
+ case 0:
+ backThirdLayer = false;
+ clearScreen();
+
+ while(!backThirdLayer) {
+
+ switch(tempDur.start()) {
+
+ // 5 minutes
+ case 0:
+ backFourthLayer = false;
+ clearScreen();
+ status.detach(); // stop updating status bar
+
+ while (!backFourthLayer) {
+
+ switch(tempLog.start(0)) {
+
+ // Previous Screen
+ case -1:
+ backFourthLayer = true;
+ clearScreen();
+ appInitialise(); // Initialise the app
+
+ }
+
+ }
+ break;
+
+ // 10 minutes
+ case 1:
+ backFourthLayer = false;
+ clearScreen();
+ status.detach(); // stop updating status bar
+
+ while (!backFourthLayer) {
+
+ switch(tempLog.start(1)) {
+
+ // Previous Screen
+ case -1:
+ backFourthLayer = true;
+ clearScreen();
+ appInitialise(); // initialise the app
+
+ }
+
+ }
+ break;
+
+ // 30 minutes
+ case 2:
+ backFourthLayer = false;
+ clearScreen();
+ status.detach(); // stop updating status bar
+
+ while (!backFourthLayer) {
+
+ switch(tempLog.start(2)) {
+
+ // Previous Screen
+ case -1:
+ backFourthLayer = true;
+ clearScreen();
+ appInitialise(); // initialise the app
+
+ }
+
+ }
+ break;
+
+ // 1 Hour
+ case 3:
+ backFourthLayer = false;
+ clearScreen();
+ status.detach(); // stop updating status bar
+
+ while (!backFourthLayer) {
+
+ switch(tempLog.start(3)) {
+
+ // Previous Screen
+ case -1:
+ backFourthLayer = true;
+ clearScreen();
+ appInitialise(); // initialise the app
+
+ }
+
+ }
+ break;
+
+
+ // Previous Screen
+ case -1:
+ backThirdLayer = true;
+ clearScreen();
+
+ }
+ }
+ break;
+
+ //Pressure
+ case 1:
+ backThirdLayer = false;
+ clearScreen();
+
+
+ while(!backThirdLayer) {
+
+ switch(prsDur.start()) {
+
+ // 5 minutes
+ case 0:
+ backFourthLayer = false;
+ clearScreen();
+ status.detach(); // stop updating status bar
+
+ while(!backFourthLayer) {
+
+ switch(prsLog.start(0)) {
+
+ // Previous Screen
+ case -1:
+ backFourthLayer = true;
+ clearScreen();
+ appInitialise(); // initialise the app
+ break;
+
+ }
+
+
+ }
+ break;
+
+ // 10 minutes
+ case 1:
+ backFourthLayer = false;
+ clearScreen();
+ status.detach(); // stop updating status bar
+
+ while(!backFourthLayer) {
+
+ switch(prsLog.start(1)) {
+
+ // Previous Screen
+ case -1:
+ backFourthLayer = true;
+ clearScreen();
+ appInitialise(); // initialise the app
+ break;
+
+ }
+ }
+ break;
+
+ // 30 minutes
+ case 2:
+ backFourthLayer = false;
+ clearScreen();
+ status.detach(); // stop updating status bar
+
+ while(!backFourthLayer) {
+
+ switch(prsLog.start(2)) {
+
+ // Previous Screen
+ case -1:
+ backFourthLayer = true;
+ clearScreen();
+ appInitialise(); // initialise the app
+ break;
+
+ }
+ }
+ break;
+
+ // 1 Hour
+ case 3:
+ backFourthLayer = false;
+ clearScreen();
+ status.detach(); // stop updating status bar
+
+ while(!backFourthLayer) {
+
+ switch(prsLog.start(3)) {
+
+ // Previous Screen
+ case -1:
+ backFourthLayer = true;
+ clearScreen();
+ appInitialise(); // initialise the app
+ break;
+
+ }
+ }
+ break;
+
+ // Previous Screen
+ case -1:
+ backThirdLayer = true;
+ clearScreen();
+ break;
+
+ }
+ }
+ break;
+
+ //Previous Screen
+ case -1:
+ backSecondLayer = true;
+ clearScreen();
+ break;
+
+ }
+
+ }
+ break;
+
+ // View Log
+ case 1:
+ backSecondLayer = false;
+ clearScreen();
+
+ while(!backSecondLayer) {
+
+ switch(optTwo.start()) {
+
+ //Temperature
+ case 0:
+ backThirdLayer = false;
+ clearScreen();
+
+ while(!backThirdLayer) {
+
+ TempViewLogScreen tempView;
+
+ switch(tempView.start()) {
+
+ // Previous Screen
+ case -1:
+ backThirdLayer = true;
+ clearScreen();
+ break;
+ }
+ }
+ break;
+
+ // Pressure
+ case 1:
+ backThirdLayer = false;
+ clearScreen();
+
+ while(!backThirdLayer) {
+
+ PrsViewLogScreen prsView;
+
+ switch(prsView.start()) {
+
+ // Previous Screen
+ case -1:
+ backThirdLayer = true;
+ clearScreen();
+ break;
+ }
+ }
+
+ break;
+
+ // Previous Screen
+ case -1:
+ backSecondLayer = true;
+ clearScreen();
+ break;
+
+ }
+
+
+ }
+ break;
+
+ // Previous Screen
+ case -1:
+ backFirstLayer = true;
+ clearScreen();
+ break;
+ }
+
+
+ }
+ break;
+
+ // Settings
+ case 3:
+ backFirstLayer = false;
+ clearScreen();
+
+ while(!backFirstLayer) {
+
+ switch(settings.start()) {
+
+ // Brightness
+ case 0:
+ backSecondLayer = false;
+ clearScreen();
+
+ while(!backSecondLayer) {
+
+ switch(bright.start()) {
+
+ // Previous Screen
+ case -1:
+ backSecondLayer = true;
+ clearScreen();
+
+ }
+
+ }
+
+ break;
+
+ // Sound FX
+ case 1:
+ backSecondLayer = false;
+ clearScreen();
+
+ while(!backSecondLayer) {
+
+ switch(sound.start()) {
+
+ // Previous Screen
+ case -1:
+ backSecondLayer = true;
+ clearScreen();
+
+ }
+
+ }
+ break;
+
+ // Battery Status
+ case 2:
+ backSecondLayer = false;
+ clearScreen();
+
+ while(!backSecondLayer) {
+
+ switch(currBatt.start()) {
+
+ // Previous Screen
+ case -1:
+ backSecondLayer = true;
+ clearScreen();
+
+ }
+
+ }
+ break;
+
+ // Previous Screen
+ case -1:
+ backFirstLayer = true;
+ clearScreen();
+ break;
+
+
+ }
+ }
+
+ default:
+ // show nothing
+ break;
+
+ }
+
+
+ }
+}
+
+void WeatherApp::updateStatusBar()
+{
+
+ ////GET THE CURRENT TIME///////////
+ time_t seconds = time(NULL);
+
+ char buffer[32];
+ strftime(buffer, 32, "%R", localtime(&seconds)); // format the time in HH:MM 24 Hr clock
+////////////////////////////////////////////
+
+ lcd.printString( buffer, 0,0);// display the time
+
+
+
+ float batteryVoltage = getVoltage();
+
+
+
+
+ // draw the empty battery
+ lcd.setPixel(73,3);
+ lcd.setPixel(72,3);
+ lcd.setPixel(73,4);
+ lcd.setPixel(72,4);
+ lcd.drawRect(74,1,8,5,0);
+ lcd.clearPixel(76,3);
+ lcd.clearPixel(76,4);
+ lcd.clearPixel(78,3);
+ lcd.clearPixel(78,4);
+ lcd.clearPixel(80,3);
+ lcd.clearPixel(80,4);
+
+
+
+ if (batteryVoltage > 7.92) { // battery voltage is greater than 2.6V
+ // battery has three bars
+ lcd.drawLine(76,3,76,4,1);
+ lcd.drawLine(78,3,78,4,1);
+ lcd.drawLine(80,3,80,4,1);
+
+ } else if ( (batteryVoltage < 7.92 )&& (batteryVoltage > 6.5)) { // battery voltage is between 2.64V and 1.65V
+ // battery has two bars
+ lcd.drawLine(78,3,78,4,1);
+ lcd.drawLine(80,3,80,4,1);
+
+ } else if ((batteryVoltage < 6.5) && (batteryVoltage > 6.0)) { // battery voltage is between 1.65V and 0.66V
+ // battery has one bar
+ lcd.drawLine(80,3,80,4,1);
+ } else { // battery voltage is less than 0.66V
+ // empty battery
+ }
+
+ if (batteryVoltage < 6.5) {
+
+ if(!batStatLedState) {
+
+ turnOnBatStatLed();
+ }
+
+
+ } else {
+
+ turnOffBatStatLed();
+
+ }
+
+ lcd.refresh();
+
+}
+
+void WeatherApp::clearScreen()
+{
+ // clear the screen
+ lcd.clear();
+
+ // update the status bar
+ updateStatusBar();
+
+}
+
+void WeatherApp::appInitialise()
+{
+ //*** THIS WAS REMOVED **// it causes program to crash
+ //PHY_PowerDown(); // power down the ethernet port to save power
+
+
+ bmp180.Initialize(); // initialise the temperature/pressure sensor
+ debounceInit(); // initialise the button debouncer
+ lcd.init(); // intialise the lcd
+ //set_time(1431199080); // used to set unix time
+ updateStatusBar(); // update status bar
+ status.attach(this,&WeatherApp::updateStatusBar, 10.0); // update the status bar every 10 seconds
+ initSound(); // initialise sound
+ initBrightness(); // initialsie brightness
+
+
+}
+
+void WeatherApp::initSound() // initialise sound
+{
+ // sound key and value pair
+ char *soundKey = "sound ";
+ char soundValue[BUFSIZ];
+
+ // prepare the cfg file to be read
+ cfg.read("/local/sound.cfg");
+
+ // if key and value exist, retrieve and store
+ if (cfg.getValue(soundKey, &soundValue[0], sizeof(soundValue))) {
+
+ int sound = atoi(soundValue); // convert string to integer
+
+ // set the sound appropriateley
+ if (sound == 1) {
+ soundFx = true; // sound on
+ } else {
+ soundFx = false; // sound off
+ }
+ }
+
+}
+
+void WeatherApp::initBrightness() // initialises brightness
+{
+ // brightness key and value pair
+ char *brightnessKey = "brightness ";
+ char brightnessValue[BUFSIZ];
+
+ // prepare the cfg file to be read
+ cfg.read("/local/bright.cfg");
+
+ // if key aand value exist, retrieve and store
+ if (cfg.getValue(brightnessKey, &brightnessValue[0], sizeof(brightnessValue))) {
+
+ int brightness = atoi(brightnessValue); // convert string to integer
+ currentBrightness = brightness;
+
+ // set the lcd brightness appropriately
+ if (brightness == 100) {
+ lcd.setBrightness(1.0); // 100 %
+ } else if (brightness == 50) {
+ lcd.setBrightness(0.5); // 50 %
+ } else if (brightness == 25) {
+ lcd.setBrightness(0.25); // 25 %
+ } else {
+ lcd.setBrightness(0); // Off
+ }
+ }
+
+}
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