Augustine Kizito
Year Two Project ELEC 2645: Embedded Systems Project Portable Weather Station
Dependencies: BMP180 ConfigFile N5110 PowerControl beep mbed
WeatherApp.h
- Committer:
- OHstin
- Date:
- 2015-05-11
- Revision:
- 0:da2b8c7a1ec1
File content as of revision 0:da2b8c7a1ec1:
/**
@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
}
}
}