Augustine Kizito / Mbed 2 deprecated Solar_Powered_Smart_Camera

This program consists of the software developed for the ELEC5870M Individual Project. It runs on the mbed LPC1768. It uses the mbed RTOS to perform the following tasks: - Implements intuitive GUI with buttons, LCD TFT Display and LEDs. - Serial Communication with the RPi - I2C communication with INA219 voltage current sensors - Power control at the USB ports

Dependencies:   Adafruit_GFX Adafruit_ST7735 INA219 MODSERIAL MbedJSONValue mbed-rtos mbed

Screens/OutputScreen.h@6:196a63a3378d, 2017-04-30 (annotated)

Committer:
OHstin
Date:
Sun Apr 30 17:19:22 2017 +0000
Revision:
6:196a63a3378d
Parent:
4:c7b0670f96b2 
Final Code for mbed operation

Who changed what in which revision?

UserRevisionLine numberNew contents of line
OHstin 3:7666de697752 1 #ifndef OUTPUTSCREEN_H
OHstin 3:7666de697752 2 #define OUTPUTSCREEN_H
OHstin 3:7666de697752 3
OHstin 3:7666de697752 4 #include "ListController.h"
OHstin 3:7666de697752 5
OHstin 3:7666de697752 6 class OutputScreen:public Button <OutputScreen>
OHstin 3:7666de697752 7 {
OHstin 3:7666de697752 8 public:
OHstin 3:7666de697752 9 OutputScreen(uint16_t backgroundColor);
OHstin 3:7666de697752 10 int start();
OHstin 3:7666de697752 11 void buttonPressed(int button);
OHstin 3:7666de697752 12
OHstin 3:7666de697752 13 private:
OHstin 3:7666de697752 14 void drawOutputScreen();
OHstin 3:7666de697752 15 void drawTile();
OHstin 6:196a63a3378d 16 void updateTile();
OHstin 6:196a63a3378d 17 void drawWattage(float wattage, uint16_t color);
OHstin 3:7666de697752 18
OHstin 3:7666de697752 19 int changeScreen;
OHstin 6:196a63a3378d 20 float previousWattage;
OHstin 3:7666de697752 21 ListController *list; // manages the list
OHstin 3:7666de697752 22 bool scroll; // updated when a scroll event occurs
OHstin 3:7666de697752 23 bool enter; // updated when an enter event occurs
OHstin 3:7666de697752 24 uint16_t bgColor; // background color
OHstin 3:7666de697752 25
OHstin 3:7666de697752 26 };
OHstin 3:7666de697752 27
OHstin 3:7666de697752 28 OutputScreen::OutputScreen(uint16_t backgroundColor)
OHstin 3:7666de697752 29 {
OHstin 3:7666de697752 30
OHstin 3:7666de697752 31 bgColor = backgroundColor;
OHstin 3:7666de697752 32 }
OHstin 3:7666de697752 33
OHstin 3:7666de697752 34 int OutputScreen::start()
OHstin 3:7666de697752 35 {
OHstin 6:196a63a3378d 36 previousWattage = -1;
OHstin 3:7666de697752 37
OHstin 3:7666de697752 38 // draw the screen
OHstin 3:7666de697752 39 drawOutputScreen();
OHstin 3:7666de697752 40
OHstin 3:7666de697752 41 // attach interrupts to buttons
OHstin 3:7666de697752 42 Button<OutputScreen>::activateButtons(this);
OHstin 3:7666de697752 43
OHstin 3:7666de697752 44 changeScreen = 0;
OHstin 3:7666de697752 45 scroll = false;
OHstin 3:7666de697752 46 enter = false;
OHstin 3:7666de697752 47
OHstin 3:7666de697752 48
OHstin 3:7666de697752 49 while (changeScreen == 0) {
OHstin 6:196a63a3378d 50 updateTile();
OHstin 3:7666de697752 51
OHstin 3:7666de697752 52 // scroll event occured
OHstin 3:7666de697752 53 if (scroll) {
OHstin 3:7666de697752 54 // perform scroll on the list
OHstin 3:7666de697752 55 list->scroll();
OHstin 3:7666de697752 56 // reset variable
OHstin 3:7666de697752 57 scroll = false;
OHstin 3:7666de697752 58 }
OHstin 3:7666de697752 59
OHstin 3:7666de697752 60 // enter event occured
OHstin 3:7666de697752 61 if (enter) {
OHstin 3:7666de697752 62 // read the current option on the list
OHstin 3:7666de697752 63 changeScreen = list->getCurrentOption();
OHstin 3:7666de697752 64 }
OHstin 3:7666de697752 65 //wait_ms(500);
OHstin 3:7666de697752 66 Thread::wait(200);
OHstin 3:7666de697752 67 }
OHstin 3:7666de697752 68
OHstin 3:7666de697752 69 // release the memory held by the list
OHstin 3:7666de697752 70 delete list;
OHstin 3:7666de697752 71
OHstin 3:7666de697752 72 // dettach interrupts to buttons
OHstin 3:7666de697752 73 Button<OutputScreen>::deActivateButtons();
OHstin 3:7666de697752 74
OHstin 3:7666de697752 75 return changeScreen;
OHstin 3:7666de697752 76 }
OHstin 3:7666de697752 77
OHstin 3:7666de697752 78
OHstin 3:7666de697752 79 void OutputScreen::drawOutputScreen()
OHstin 3:7666de697752 80 {
OHstin 3:7666de697752 81
OHstin 3:7666de697752 82 // draw the tile
OHstin 3:7666de697752 83 drawTile();
OHstin 3:7666de697752 84
OHstin 3:7666de697752 85 // construct the list
OHstin 3:7666de697752 86 list = new ListController( 0,
OHstin 3:7666de697752 87 63,
OHstin 3:7666de697752 88 "Output",
OHstin 3:7666de697752 89 "Raspberry Pi",
OHstin 3:7666de697752 90 "Utility Port",
OHstin 3:7666de697752 91 "",
OHstin 3:7666de697752 92 "",
OHstin 3:7666de697752 93 backgroundColor,
OHstin 3:7666de697752 94 2);
OHstin 3:7666de697752 95
OHstin 3:7666de697752 96
OHstin 3:7666de697752 97 // draw the list
OHstin 3:7666de697752 98 list->drawList();
OHstin 3:7666de697752 99 //Button<BatteriesScreen>::activateButtons();
OHstin 3:7666de697752 100 }
OHstin 3:7666de697752 101
OHstin 6:196a63a3378d 102
OHstin 6:196a63a3378d 103
OHstin 3:7666de697752 104 void OutputScreen::drawTile()
OHstin 6:196a63a3378d 105 {
OHstin 6:196a63a3378d 106 // draw the green background
OHstin 3:7666de697752 107 tft.fillRect(0,0,tft.width(),63,ST7735_YELLOW);
OHstin 6:196a63a3378d 108
OHstin 6:196a63a3378d 109 // draw the text
OHstin 6:196a63a3378d 110 tft.setTextSize(1);
OHstin 6:196a63a3378d 111 tft.setCursor(5,5);
OHstin 6:196a63a3378d 112 tft.setTextColor(ST7735_BLUE);
OHstin 6:196a63a3378d 113 tft.printf("Power:");
OHstin 6:196a63a3378d 114
OHstin 6:196a63a3378d 115 // update the power values
OHstin 6:196a63a3378d 116 updateTile();
OHstin 6:196a63a3378d 117 }
OHstin 3:7666de697752 118
OHstin 6:196a63a3378d 119 void OutputScreen::updateTile()
OHstin 6:196a63a3378d 120 {
OHstin 6:196a63a3378d 121 // read the current power
OHstin 6:196a63a3378d 122 float wattage = getConsumptionPower();
OHstin 6:196a63a3378d 123
OHstin 6:196a63a3378d 124 // temporary storage
OHstin 6:196a63a3378d 125 char wattageString[5];
OHstin 6:196a63a3378d 126
OHstin 6:196a63a3378d 127 // tracks previously measured power
OHstin 6:196a63a3378d 128 // ensure first value is ridiculous
OHstin 6:196a63a3378d 129 // to enable print on startup
OHstin 6:196a63a3378d 130 //static float previousWattage = -1;
OHstin 6:196a63a3378d 131
OHstin 6:196a63a3378d 132 // convert float to char*
OHstin 6:196a63a3378d 133 // to round off to 1 decimal place
OHstin 6:196a63a3378d 134 sprintf(wattageString,"%.1f",wattage);
OHstin 6:196a63a3378d 135
OHstin 6:196a63a3378d 136 // convert back to float
OHstin 6:196a63a3378d 137 wattage = atof(wattageString);
OHstin 6:196a63a3378d 138
OHstin 6:196a63a3378d 139 // multiply by 10
OHstin 6:196a63a3378d 140 wattage = wattage*10;
OHstin 6:196a63a3378d 141
OHstin 6:196a63a3378d 142 // convert float to integer
OHstin 6:196a63a3378d 143 float currentWattage = wattage;
OHstin 6:196a63a3378d 144
OHstin 6:196a63a3378d 145 if(currentWattage != previousWattage){
OHstin 6:196a63a3378d 146
OHstin 6:196a63a3378d 147 // first delete the previous wattage
OHstin 6:196a63a3378d 148 drawWattage(previousWattage,ST7735_YELLOW);
OHstin 6:196a63a3378d 149 // then write the new wattage
OHstin 6:196a63a3378d 150 drawWattage(currentWattage,ST7735_RED);
OHstin 6:196a63a3378d 151
OHstin 6:196a63a3378d 152
OHstin 6:196a63a3378d 153 }else{
OHstin 6:196a63a3378d 154 // do nothing
OHstin 6:196a63a3378d 155 }
OHstin 6:196a63a3378d 156
OHstin 6:196a63a3378d 157 // update the previous wattage
OHstin 6:196a63a3378d 158 previousWattage = currentWattage;
OHstin 6:196a63a3378d 159 }
OHstin 6:196a63a3378d 160
OHstin 6:196a63a3378d 161 void OutputScreen::drawWattage(float wattage, uint16_t color)
OHstin 6:196a63a3378d 162 {
OHstin 6:196a63a3378d 163 // convert float to integer
OHstin 6:196a63a3378d 164 int wattageInt = wattage;
OHstin 6:196a63a3378d 165
OHstin 6:196a63a3378d 166 // divide by 10
OHstin 6:196a63a3378d 167 int firstInt = wattageInt/10;
OHstin 6:196a63a3378d 168
OHstin 6:196a63a3378d 169 // print the quotient as the first value
OHstin 6:196a63a3378d 170 int secondInt = wattageInt%10;
OHstin 6:196a63a3378d 171
OHstin 6:196a63a3378d 172 // the coordinates of the first large digit
OHstin 6:196a63a3378d 173 int startWidth = 40;
OHstin 6:196a63a3378d 174 int startHeight = 15;
OHstin 6:196a63a3378d 175
OHstin 6:196a63a3378d 176 // The first Large Digit
OHstin 6:196a63a3378d 177 tft.setTextSize(6);
OHstin 6:196a63a3378d 178 tft.setCursor(startWidth, startHeight);
OHstin 6:196a63a3378d 179 tft.setTextColor(color);
OHstin 6:196a63a3378d 180 tft.printf("%d",firstInt);
OHstin 6:196a63a3378d 181
OHstin 6:196a63a3378d 182 // the decimal point
OHstin 6:196a63a3378d 183 tft.setCursor(startWidth+ 28, startHeight + 21);
OHstin 6:196a63a3378d 184 tft.setTextSize(3);
OHstin 6:196a63a3378d 185 tft.printf(".");
OHstin 6:196a63a3378d 186
OHstin 6:196a63a3378d 187 // The second Large Digit
OHstin 6:196a63a3378d 188 tft.setCursor(startWidth + 45, startHeight);
OHstin 6:196a63a3378d 189 tft.setTextSize(6);
OHstin 6:196a63a3378d 190 tft.printf("%d", secondInt);
OHstin 6:196a63a3378d 191
OHstin 6:196a63a3378d 192 // The power units
OHstin 6:196a63a3378d 193 tft.setCursor(startWidth + 80, startHeight + 15);
OHstin 6:196a63a3378d 194 tft.setTextSize(3);
OHstin 6:196a63a3378d 195 tft.printf("W");
OHstin 6:196a63a3378d 196
OHstin 6:196a63a3378d 197 // reset the text size to smallest
OHstin 6:196a63a3378d 198 tft.setTextSize(1);
OHstin 3:7666de697752 199 }
OHstin 3:7666de697752 200
OHstin 3:7666de697752 201 void OutputScreen::buttonPressed(int button)
OHstin 3:7666de697752 202 {
OHstin 3:7666de697752 203 switch(button) {
OHstin 3:7666de697752 204
OHstin 3:7666de697752 205 case BACKBUTTON:
OHstin 3:7666de697752 206 // navigate to the previous screen
OHstin 3:7666de697752 207 changeScreen = -1;
OHstin 3:7666de697752 208 break;
OHstin 3:7666de697752 209
OHstin 3:7666de697752 210 case SCROLLBUTTON:
OHstin 3:7666de697752 211 // scroll to the next option
OHstin 3:7666de697752 212 scroll = true;
OHstin 3:7666de697752 213 break;
OHstin 3:7666de697752 214
OHstin 3:7666de697752 215 case ENTERBUTTON:
OHstin 3:7666de697752 216 // navigate to the selected option
OHstin 3:7666de697752 217 //changeScreen = ListController::getCurrentOption();
OHstin 4:c7b0670f96b2 218 enter = true;
OHstin 4:c7b0670f96b2 219 break;
OHstin 3:7666de697752 220
OHstin 3:7666de697752 221 default:
OHstin 3:7666de697752 222 // do nothing
OHstin 3:7666de697752 223 break;
OHstin 3:7666de697752 224 }
OHstin 3:7666de697752 225 }
OHstin 3:7666de697752 226
OHstin 3:7666de697752 227 #endif