(DA) Internet of Things and Smart Electronics- ELE3006M2122 / Mbed 2 deprecated Final_Project_V09_DLeaming_25574043

New version - adding of lights/controls to temperature monitoring

Dependencies:   mbed N5110v02 TMP102 JoystickIoT

main.cpp@6:ebf4784ce92b, 2022-01-14 (annotated)

Committer:
legstar85
Date:
Fri Jan 14 10:41:46 2022 +0000
Revision:
6:ebf4784ce92b
Parent:
5:eebd36a47049
Child:
7:d77e95505e43
Production of selectable menu

Who changed what in which revision?

UserRevisionLine numberNew contents of line
legstar85 4:0090145b3286 1 /*
legstar85 2:e0091b5311f1 2 * @ File main.cpp
legstar85 4:0090145b3286 3 * @ Author - David Leaming - 25574043
legstar85 2:e0091b5311f1 4 * @ Date - December 2021
legstar85 2:e0091b5311f1 5 *
legstar85 2:e0091b5311f1 6 * Acknowledgements
legstar85 2:e0091b5311f1 7 * Craig A. Evans, University of Leeds, TMP102 Library ,Feb 2016
legstar85 2:e0091b5311f1 8 * Dr Edmond Nurellari, University of Lincoln, Joystick & N5110 Libraries
legstar85 2:e0091b5311f1 9 *
eencae 0:21a200b880d7 10 */
eencae 0:21a200b880d7 11
legstar85 2:e0091b5311f1 12 #include "mbed.h" // include the library header, ensure the library has been imported into the project
eencae 1:dd5fb735acf1 13 #include "TMP102.h"
legstar85 2:e0091b5311f1 14 #include "N5110.h"
legstar85 2:e0091b5311f1 15 #include "Joystick.h"
legstar85 2:e0091b5311f1 16 #include "Bitmap.h"
eencae 0:21a200b880d7 17
legstar85 2:e0091b5311f1 18 TMP102 tmp102(I2C_SDA,I2C_SCL); // Create TMP102 object
legstar85 2:e0091b5311f1 19
legstar85 2:e0091b5311f1 20 // VCC,SCE,RST,D/C,MOSI,SCLK,LED
legstar85 2:e0091b5311f1 21 N5110 lcd(PTC9,PTC0,PTC7,PTD2,PTD1,PTC11); // Create Screen Object - K64F - pwr from 3V3, GND Pin also needs connecting
legstar85 2:e0091b5311f1 22
legstar85 3:80c1eba78f9b 23 // y x button
legstar85 3:80c1eba78f9b 24 Joystick joystick(PTB10,PTB11,PTC16); // Define Joystick Object
eencae 0:21a200b880d7 25
legstar85 2:e0091b5311f1 26 Serial pc(USBTX,USBRX); // UART connection for PC
legstar85 2:e0091b5311f1 27
legstar85 5:eebd36a47049 28 Ticker ticker_menu; // Create Menu ticker object
legstar85 5:eebd36a47049 29
legstar85 2:e0091b5311f1 30 DigitalOut r_led(LED_RED); // K64F on-board LEDs
legstar85 2:e0091b5311f1 31 DigitalOut g_led(LED_GREEN); // K64F on-board LEDs
legstar85 2:e0091b5311f1 32 DigitalOut b_led(LED_BLUE); // K64F on-board LEDs
eencae 0:21a200b880d7 33
legstar85 3:80c1eba78f9b 34 DigitalOut LED01 (PTA1); // PCB Surface Mounted LED's - LED1
legstar85 3:80c1eba78f9b 35 DigitalOut LED02 (PTA2); // PCB Surface Mounted LED's - LED2
legstar85 3:80c1eba78f9b 36 DigitalOut LED03 (PTC2); // PCB Surface Mounted LED's - LED3
legstar85 3:80c1eba78f9b 37 DigitalOut LED04 (PTC3); // PCB Surface Mounted LED's - LED4
legstar85 3:80c1eba78f9b 38 DigitalOut LED05 (PTC4); // PCB Surface Mounted LED's - LED5
legstar85 3:80c1eba78f9b 39 DigitalOut LED06 (PTD3); // PCB Surface Mounted LED's - LED6
legstar85 3:80c1eba78f9b 40
legstar85 2:e0091b5311f1 41 InterruptIn sw2(SW2); // K64F on-board switches
legstar85 2:e0091b5311f1 42 InterruptIn sw3(SW3); // K64F on-board switches
legstar85 3:80c1eba78f9b 43 InterruptIn ButtonA (PTB9); // PCB Button - A
legstar85 3:80c1eba78f9b 44 InterruptIn ButtonB (PTD0); // PCB Button - B
legstar85 3:80c1eba78f9b 45
legstar85 5:eebd36a47049 46 volatile int g_ButtonA_flag = 0; // flag - must be volatile as changes within ISR - g_ prefix makes it easier to distinguish it as global
legstar85 5:eebd36a47049 47 volatile int g_ButtonB_flag = 0; // flag - must be volatile as changes within ISR - g_ prefix makes it easier to distinguish it as global
legstar85 5:eebd36a47049 48 volatile int g_sw2_flag = 0; // flag - must be volatile as changes within ISR - g_ prefix makes it easier to distinguish it as global
legstar85 5:eebd36a47049 49 volatile int g_menu_timer_flag = 0; // flag - must be volatile as changes within ISR - g_ prefix makes it easier to distinguish it as global
legstar85 5:eebd36a47049 50 volatile int option = 0; // Menu option selection based on joystick direction
legstar85 2:e0091b5311f1 51
legstar85 2:e0091b5311f1 52 void error(); // error function hangs flashing an LED
legstar85 2:e0091b5311f1 53 void init_serial(); // setup serial port
legstar85 2:e0091b5311f1 54 void init_K64F(); // set-up the on-board LEDs and switches
legstar85 3:80c1eba78f9b 55 void init_PCB(); // set-up the PCB LEDs and buttons
legstar85 5:eebd36a47049 56 void ButtonA_isr(); //
legstar85 5:eebd36a47049 57 void ButtonB_isr(); //
legstar85 5:eebd36a47049 58 void sw2_isr(); //
legstar85 5:eebd36a47049 59 void menu_timer_isr(); //
legstar85 6:ebf4784ce92b 60 void OnStartup(); //
legstar85 6:ebf4784ce92b 61 void Run(); //
legstar85 6:ebf4784ce92b 62 void ConstantMonitoring(); //
eencae 0:21a200b880d7 63
eencae 0:21a200b880d7 64 int main()
eencae 0:21a200b880d7 65 {
legstar85 2:e0091b5311f1 66 init_K64F(); // initialise the board
legstar85 2:e0091b5311f1 67 init_serial(); // initialise the serial port
legstar85 3:80c1eba78f9b 68 init_PCB(); // initialise the PCB
legstar85 3:80c1eba78f9b 69
legstar85 2:e0091b5311f1 70 tmp102.init(); // call the sensor init method using dot syntax
legstar85 2:e0091b5311f1 71 lcd.init(); // initialise display
legstar85 3:80c1eba78f9b 72 joystick.init(); // initialise joystick
legstar85 3:80c1eba78f9b 73
legstar85 5:eebd36a47049 74 ticker_menu.attach(&menu_timer_isr,0.2); // Attach ticker for the Joystick
legstar85 5:eebd36a47049 75
legstar85 3:80c1eba78f9b 76 sw2.fall(&sw2_isr); // SW2 has a pull-up resistor, so the pin will be at 3.3 V by default and fall to 0 V when pressed. We therefore need to look for a falling edge on the pin to fire the interrupt
legstar85 3:80c1eba78f9b 77 ButtonA.rise(&ButtonA_isr); // External push button, pin set to 0V by pull down command, means a rising edge is looked for
legstar85 3:80c1eba78f9b 78 ButtonB.rise(&ButtonB_isr); // External push button, pin set to 0V by pull down command, means a rising edge is looked for
legstar85 2:e0091b5311f1 79
legstar85 2:e0091b5311f1 80 lcd.setContrast(0.5); // change set contrast in range 0.0 to 1.0
eencae 0:21a200b880d7 81
legstar85 6:ebf4784ce92b 82 OnStartup(); //
legstar85 6:ebf4784ce92b 83 Run(); //
legstar85 5:eebd36a47049 84
legstar85 5:eebd36a47049 85 }
eencae 0:21a200b880d7 86
eencae 0:21a200b880d7 87 void init_serial() {
legstar85 2:e0091b5311f1 88 pc.baud(115200); // set to highest baud - ensure terminal software matches
eencae 0:21a200b880d7 89 }
eencae 0:21a200b880d7 90
eencae 0:21a200b880d7 91 void init_K64F()
eencae 0:21a200b880d7 92 {
legstar85 2:e0091b5311f1 93 r_led = 1; // on-board LEDs are active-low, so set pin high to turn them off.
legstar85 2:e0091b5311f1 94 g_led = 1; // on-board LEDs are active-low, so set pin high to turn them off.
legstar85 2:e0091b5311f1 95 b_led = 1; // on-board LEDs are active-low, so set pin high to turn them off.
eencae 0:21a200b880d7 96
legstar85 2:e0091b5311f1 97 sw2.mode(PullNone); // since the on-board switches have external pull-ups, we should disable the internal pull-down
legstar85 2:e0091b5311f1 98 sw3.mode(PullNone); // resistors that are enabled by default using InterruptIn
eencae 0:21a200b880d7 99
eencae 0:21a200b880d7 100 }
legstar85 3:80c1eba78f9b 101
legstar85 3:80c1eba78f9b 102 void init_PCB ()
legstar85 3:80c1eba78f9b 103 {
legstar85 3:80c1eba78f9b 104 LED01 = 1; // PCB surface mounted LED's are active low - write a 1 to turn them off initiallly
legstar85 3:80c1eba78f9b 105 LED02 = 1;
legstar85 3:80c1eba78f9b 106 LED03 = 1;
legstar85 3:80c1eba78f9b 107 LED04 = 1;
legstar85 3:80c1eba78f9b 108 LED05 = 1;
legstar85 3:80c1eba78f9b 109 LED06 = 1;
legstar85 3:80c1eba78f9b 110
legstar85 3:80c1eba78f9b 111 ButtonA.mode(PullDown); // Set pin to Pull Down to OV, meaning that a rising edge is looked for when button is pressed
legstar85 3:80c1eba78f9b 112 ButtonB.mode(PullDown); // Set pin to Pull Down to OV, meaning that a rising edge is looked for when button is pressed
legstar85 3:80c1eba78f9b 113
legstar85 3:80c1eba78f9b 114 }
legstar85 3:80c1eba78f9b 115
legstar85 3:80c1eba78f9b 116 void ButtonA_isr() // ButtonA event-triggered interrupt
legstar85 3:80c1eba78f9b 117 {
legstar85 3:80c1eba78f9b 118 g_ButtonA_flag = 1; // set flag in ISR
legstar85 3:80c1eba78f9b 119 }
legstar85 3:80c1eba78f9b 120
legstar85 3:80c1eba78f9b 121 void ButtonB_isr() // ButtonB event-triggered interrupt
legstar85 3:80c1eba78f9b 122 {
legstar85 3:80c1eba78f9b 123 g_ButtonB_flag = 1; // set flag in ISR
legstar85 3:80c1eba78f9b 124 }
legstar85 3:80c1eba78f9b 125
legstar85 3:80c1eba78f9b 126 void sw2_isr() // SW2 event-triggered interrupt
legstar85 3:80c1eba78f9b 127 {
legstar85 3:80c1eba78f9b 128 g_sw2_flag = 1; // set flag in ISR
legstar85 5:eebd36a47049 129 }
legstar85 5:eebd36a47049 130
legstar85 5:eebd36a47049 131 void menu_timer_isr()
legstar85 5:eebd36a47049 132 {
legstar85 6:ebf4784ce92b 133 g_menu_timer_flag = 1; // set flag in ISR
legstar85 6:ebf4784ce92b 134 }
legstar85 6:ebf4784ce92b 135
legstar85 6:ebf4784ce92b 136 void OnStartup() //Run some start up display
legstar85 6:ebf4784ce92b 137 {
legstar85 6:ebf4784ce92b 138 lcd.clear(); // clear buffer at start of every loop
legstar85 6:ebf4784ce92b 139 lcd.printString("Smart Cold",0,0); // can directly print strings at specified co-ordinates (must be less than 84 pixels to fit on display)
legstar85 6:ebf4784ce92b 140 lcd.printString("Storage",0,1); // Just a welcome message before auto moving to main menu
legstar85 6:ebf4784ce92b 141 lcd.printString("Monitoring",0,2);
legstar85 6:ebf4784ce92b 142 lcd.printString("",0,2); // Blank Line
legstar85 6:ebf4784ce92b 143 lcd.printString("V1.0 - 2021",0,4);
legstar85 6:ebf4784ce92b 144 lcd.printString("David Leaming",0,5);
legstar85 6:ebf4784ce92b 145 lcd.refresh(); // need to refresh display after setting pixels or writing strings
legstar85 6:ebf4784ce92b 146 wait(5.0); // leave welcome screen on for designated amount of time
legstar85 6:ebf4784ce92b 147 lcd.clear(); // clear buffer at start of every loop
legstar85 6:ebf4784ce92b 148 lcd.refresh(); // need to refresh display after setting pixels or writing strings
legstar85 6:ebf4784ce92b 149 lcd.printString("Use Joystick",0,0); // Instruction for use of menu
legstar85 6:ebf4784ce92b 150 lcd.printString("To Navigate",0,1);
legstar85 6:ebf4784ce92b 151 lcd.printString("",0,2); // Blank Line
legstar85 6:ebf4784ce92b 152 lcd.printString("A = Select",0,3);
legstar85 6:ebf4784ce92b 153 lcd.refresh(); // need to refresh display after setting pixels or writing strings
legstar85 6:ebf4784ce92b 154 wait(5.0);
legstar85 5:eebd36a47049 155 }
legstar85 5:eebd36a47049 156
legstar85 6:ebf4784ce92b 157 enum EMenuState //An enum controlling the current state of the display.
legstar85 6:ebf4784ce92b 158 {
legstar85 6:ebf4784ce92b 159 MENUSTATE_Main,
legstar85 6:ebf4784ce92b 160 MENUSTATE_Monitor,
legstar85 6:ebf4784ce92b 161 MENUSTATE_OneOff,
legstar85 6:ebf4784ce92b 162 MENUSTATE_About,
legstar85 6:ebf4784ce92b 163
legstar85 6:ebf4784ce92b 164 MENUSTATTE_Num, // This is a special enum value that just gives is a way to get the number of elements in the enum.
legstar85 6:ebf4784ce92b 165 };
legstar85 6:ebf4784ce92b 166
legstar85 6:ebf4784ce92b 167 void Run()
legstar85 5:eebd36a47049 168 {
legstar85 6:ebf4784ce92b 169 int MenuState;
legstar85 6:ebf4784ce92b 170 int SelectedItem = 0;
legstar85 6:ebf4784ce92b 171 int NumMenuItems = 1;
legstar85 6:ebf4784ce92b 172
legstar85 6:ebf4784ce92b 173 while(1){
legstar85 6:ebf4784ce92b 174 if (g_menu_timer_flag){
legstar85 5:eebd36a47049 175 g_menu_timer_flag = 0;
legstar85 5:eebd36a47049 176
legstar85 6:ebf4784ce92b 177 bool bAButtonWasPressed = g_ButtonA_flag; // Get the value of the input flags and reset them
legstar85 6:ebf4784ce92b 178 bool bBButtonWasPressed = g_ButtonB_flag;
legstar85 6:ebf4784ce92b 179 g_ButtonA_flag = 0;
legstar85 6:ebf4784ce92b 180 g_ButtonB_flag = 0;
legstar85 6:ebf4784ce92b 181
legstar85 5:eebd36a47049 182 lcd.clear(); // clear buffer at start of every loop
legstar85 6:ebf4784ce92b 183
legstar85 6:ebf4784ce92b 184 int NewMenuState = MENUSTATTE_Num; // The new menu we want to transition to, if any.
legstar85 6:ebf4784ce92b 185
legstar85 6:ebf4784ce92b 186 switch(MenuState) // Update and Draw whichever menu we're on.
legstar85 6:ebf4784ce92b 187 {
legstar85 6:ebf4784ce92b 188 case MENUSTATE_Main:
legstar85 6:ebf4784ce92b 189 {
legstar85 6:ebf4784ce92b 190
legstar85 6:ebf4784ce92b 191 NumMenuItems = 3; // Dont for get to set this when changing number of items in the menu. We need this to wrap the selection around properly etc.
legstar85 6:ebf4784ce92b 192 if(SelectedItem >= NumMenuItems)
legstar85 6:ebf4784ce92b 193 {
legstar85 6:ebf4784ce92b 194
legstar85 6:ebf4784ce92b 195 SelectedItem = 0; // Something has gone wrong, reset selected item.
legstar85 6:ebf4784ce92b 196 }
legstar85 6:ebf4784ce92b 197 lcd.printString("---- MENU ----",0,0);
legstar85 6:ebf4784ce92b 198 lcd.printString("M1 - Monitor",0,1);
legstar85 6:ebf4784ce92b 199 lcd.printString("M2 - One-off",0,2);
legstar85 6:ebf4784ce92b 200 lcd.printString("About",0,3);
legstar85 6:ebf4784ce92b 201
legstar85 6:ebf4784ce92b 202 if(bAButtonWasPressed) // If A was pressed then we transition to the selected screen.
legstar85 6:ebf4784ce92b 203 {
legstar85 6:ebf4784ce92b 204 if(SelectedItem == 0)
legstar85 6:ebf4784ce92b 205 {
legstar85 6:ebf4784ce92b 206 NewMenuState = MENUSTATE_Monitor;
legstar85 6:ebf4784ce92b 207 }
legstar85 6:ebf4784ce92b 208 else if(SelectedItem == 1)
legstar85 6:ebf4784ce92b 209 {
legstar85 6:ebf4784ce92b 210 NewMenuState = MENUSTATE_OneOff;
legstar85 6:ebf4784ce92b 211 }
legstar85 6:ebf4784ce92b 212 else if(SelectedItem == 2)
legstar85 6:ebf4784ce92b 213 {
legstar85 6:ebf4784ce92b 214 NewMenuState = MENUSTATE_About;
legstar85 6:ebf4784ce92b 215 }
legstar85 6:ebf4784ce92b 216 }
legstar85 6:ebf4784ce92b 217 }
legstar85 6:ebf4784ce92b 218 break;
legstar85 6:ebf4784ce92b 219 case MENUSTATE_Monitor:
legstar85 6:ebf4784ce92b 220 {
legstar85 6:ebf4784ce92b 221
legstar85 6:ebf4784ce92b 222 NumMenuItems = 1; // Dont for get to set this when changing number of items in the menu. We need this to wrap the selection around properly etc.
legstar85 6:ebf4784ce92b 223
legstar85 6:ebf4784ce92b 224 if(SelectedItem >= NumMenuItems)
legstar85 6:ebf4784ce92b 225 {
legstar85 6:ebf4784ce92b 226 NewMenuState = MENUSTATE_Main; // Something has gone wrong, drop back to the main menu.
legstar85 6:ebf4784ce92b 227 }
legstar85 6:ebf4784ce92b 228
legstar85 6:ebf4784ce92b 229 lcd.printString("-- Monitor --",0,0);
legstar85 6:ebf4784ce92b 230 lcd.printString("Back",0,1);
legstar85 6:ebf4784ce92b 231
legstar85 6:ebf4784ce92b 232 //TODO: Whatever the monitor screen should display...
legstar85 6:ebf4784ce92b 233
legstar85 6:ebf4784ce92b 234 if(bAButtonWasPressed)
legstar85 6:ebf4784ce92b 235 {
legstar85 6:ebf4784ce92b 236 if(SelectedItem == 0)
legstar85 6:ebf4784ce92b 237 {
legstar85 6:ebf4784ce92b 238 NewMenuState = MENUSTATE_Main;
legstar85 6:ebf4784ce92b 239 }
legstar85 6:ebf4784ce92b 240 }
legstar85 6:ebf4784ce92b 241 }
legstar85 6:ebf4784ce92b 242 break;
legstar85 6:ebf4784ce92b 243 case MENUSTATE_OneOff:
legstar85 6:ebf4784ce92b 244 {
legstar85 6:ebf4784ce92b 245
legstar85 6:ebf4784ce92b 246 NumMenuItems = 1; //TOVEY: Dont for get to set this when changing number of items in the menu. We need this to wrap the selection around properly etc.
legstar85 6:ebf4784ce92b 247 if(SelectedItem >= NumMenuItems)
legstar85 6:ebf4784ce92b 248 {
legstar85 6:ebf4784ce92b 249 NewMenuState = MENUSTATE_Main; //Something has gone wrong, drop back to the main menu.
legstar85 6:ebf4784ce92b 250 }
legstar85 6:ebf4784ce92b 251
legstar85 6:ebf4784ce92b 252 lcd.printString("-- One-off --",0,0);
legstar85 6:ebf4784ce92b 253 lcd.printString("Back",0,1);
legstar85 6:ebf4784ce92b 254
legstar85 6:ebf4784ce92b 255 //TODO: Whatever the One-off screen should display...
legstar85 6:ebf4784ce92b 256
legstar85 6:ebf4784ce92b 257 if(bAButtonWasPressed)
legstar85 6:ebf4784ce92b 258 {
legstar85 6:ebf4784ce92b 259 if(SelectedItem == 0)
legstar85 6:ebf4784ce92b 260 {
legstar85 6:ebf4784ce92b 261 NewMenuState = MENUSTATE_Main;
legstar85 6:ebf4784ce92b 262 }
legstar85 6:ebf4784ce92b 263 }
legstar85 6:ebf4784ce92b 264
legstar85 6:ebf4784ce92b 265 }
legstar85 6:ebf4784ce92b 266 break;
legstar85 6:ebf4784ce92b 267 case MENUSTATE_About:
legstar85 6:ebf4784ce92b 268 {
legstar85 6:ebf4784ce92b 269
legstar85 6:ebf4784ce92b 270 NumMenuItems = 1; // Dont for get to set this when changing number of items in the menu. We need this to wrap the selection around properly etc.
legstar85 6:ebf4784ce92b 271 if(SelectedItem >= NumMenuItems)
legstar85 6:ebf4784ce92b 272 {
legstar85 6:ebf4784ce92b 273 NewMenuState = MENUSTATE_Main; // Something has gone wrong, drop back to the main menu.
legstar85 6:ebf4784ce92b 274 }
legstar85 6:ebf4784ce92b 275
legstar85 6:ebf4784ce92b 276 lcd.printString("-- About --",0,0);
legstar85 6:ebf4784ce92b 277 lcd.printString("Back",0,1);
legstar85 6:ebf4784ce92b 278
legstar85 6:ebf4784ce92b 279 //TODO: Whatever the about screen should display...
legstar85 6:ebf4784ce92b 280
legstar85 6:ebf4784ce92b 281 if(bAButtonWasPressed)
legstar85 6:ebf4784ce92b 282 {
legstar85 6:ebf4784ce92b 283 if(SelectedItem == 0)
legstar85 6:ebf4784ce92b 284 {
legstar85 6:ebf4784ce92b 285 NewMenuState = MENUSTATE_Main;
legstar85 6:ebf4784ce92b 286 }
legstar85 6:ebf4784ce92b 287 }
legstar85 6:ebf4784ce92b 288 }
legstar85 6:ebf4784ce92b 289 break;
legstar85 6:ebf4784ce92b 290 default:
legstar85 6:ebf4784ce92b 291 {
legstar85 6:ebf4784ce92b 292 NewMenuState = MENUSTATE_Main; // Something has gone wrong, drop back to the main menu.
legstar85 6:ebf4784ce92b 293 }
legstar85 6:ebf4784ce92b 294 };
legstar85 5:eebd36a47049 295
legstar85 6:ebf4784ce92b 296 if(NewMenuState != MENUSTATTE_Num) // If we have requested a new menu state.
legstar85 6:ebf4784ce92b 297 {
legstar85 6:ebf4784ce92b 298 printf("Transitioning to MenuState: %i\n", NewMenuState); //
legstar85 6:ebf4784ce92b 299
legstar85 6:ebf4784ce92b 300 MenuState = NewMenuState; // We want to transition the menu to a new state.
legstar85 6:ebf4784ce92b 301
legstar85 6:ebf4784ce92b 302 // Do any bookkeeping needed when moving to new state.
legstar85 6:ebf4784ce92b 303 SelectedItem = 0; // Reset the selected item.
legstar85 6:ebf4784ce92b 304
legstar85 6:ebf4784ce92b 305 lcd.clear(); // Clear the display for one frame on state transition.
legstar85 6:ebf4784ce92b 306 } // Could do something else like invert colour etc here.
legstar85 6:ebf4784ce92b 307 else
legstar85 6:ebf4784ce92b 308 {
legstar85 6:ebf4784ce92b 309
legstar85 6:ebf4784ce92b 310 // If we have not selected to move to a new menu.
legstar85 6:ebf4784ce92b 311 unsigned int SelectionMarkerRadius = 4 ; // Draw a marker circle at end of line to show which is the currently selected item.
legstar85 6:ebf4784ce92b 312 unsigned int SelectionMarkerX = WIDTH - (2 * SelectionMarkerRadius);
legstar85 6:ebf4784ce92b 313 unsigned int SelectionMarkerY = (HEIGHT / 5) * (SelectedItem + 1); //+1 because of the menu title.
legstar85 6:ebf4784ce92b 314 lcd.drawCircle(SelectionMarkerX, SelectionMarkerY, SelectionMarkerRadius, FILL_BLACK);
legstar85 6:ebf4784ce92b 315
legstar85 6:ebf4784ce92b 316 // Handle Joystick Input
legstar85 6:ebf4784ce92b 317 switch (joystick.get_direction()) { // Call to check direction joystick is pointing
legstar85 6:ebf4784ce92b 318 printf("Direction = %i\n"); //
legstar85 6:ebf4784ce92b 319 case N: //
legstar85 6:ebf4784ce92b 320 SelectedItem--; //
legstar85 6:ebf4784ce92b 321 break; //
legstar85 6:ebf4784ce92b 322 case S: //
legstar85 6:ebf4784ce92b 323 SelectedItem++; //
legstar85 6:ebf4784ce92b 324 break; //
legstar85 6:ebf4784ce92b 325 }
legstar85 6:ebf4784ce92b 326
legstar85 6:ebf4784ce92b 327 if(SelectedItem < 0) //Wrap the selection around to the start/end of the menu if it goes below 0 or above NumMenuItems.
legstar85 6:ebf4784ce92b 328 {
legstar85 6:ebf4784ce92b 329 SelectedItem = NumMenuItems - 1;
legstar85 6:ebf4784ce92b 330 }
legstar85 6:ebf4784ce92b 331 else if(SelectedItem >= NumMenuItems)
legstar85 6:ebf4784ce92b 332 {
legstar85 6:ebf4784ce92b 333 SelectedItem = 0;
legstar85 6:ebf4784ce92b 334 }
legstar85 5:eebd36a47049 335 }
legstar85 5:eebd36a47049 336
legstar85 6:ebf4784ce92b 337 lcd.refresh(); //Finally update the display.
legstar85 6:ebf4784ce92b 338 }
legstar85 6:ebf4784ce92b 339 }
legstar85 5:eebd36a47049 340 }
legstar85 6:ebf4784ce92b 341
legstar85 5:eebd36a47049 342
legstar85 5:eebd36a47049 343 void ConstantMonitoring()
legstar85 5:eebd36a47049 344 {
legstar85 6:ebf4784ce92b 345
legstar85 6:ebf4784ce92b 346 char buffer[14]; // each character is 6 pixels wide, screen is 84 pixels (84/6 = 14)
legstar85 5:eebd36a47049 347 while (1) {
legstar85 5:eebd36a47049 348
legstar85 5:eebd36a47049 349 lcd.normalMode(); // normal colour mode
legstar85 5:eebd36a47049 350 lcd.setBrightness(0.5); // put LED backlight on 50%
legstar85 5:eebd36a47049 351 lcd.clear(); // clear buffer at start of every loop
legstar85 5:eebd36a47049 352 lcd.refresh(); // need to refresh display after setting pixels or writing strings
legstar85 5:eebd36a47049 353
legstar85 5:eebd36a47049 354 float T = tmp102.get_temperature(); // read temperature and print to lcd
legstar85 5:eebd36a47049 355 int length = sprintf(buffer,"T = %.2f C",T); // print formatted data to buffer - it is important the format specifier ensures the length will fit in the buffer
legstar85 5:eebd36a47049 356 if (length <= 14) // if string will fit on display (assuming printing at x=0)
legstar85 5:eebd36a47049 357 lcd.printString(buffer,0,2); // display on screen
legstar85 5:eebd36a47049 358 lcd.refresh(); // need to refresh display after setting pixels or writing strings
legstar85 5:eebd36a47049 359 wait(2.0);
legstar85 5:eebd36a47049 360
legstar85 5:eebd36a47049 361 if (g_ButtonA_flag) { // check if flag i.e. interrupt has occured
legstar85 5:eebd36a47049 362 g_ButtonA_flag = 0; // if it has, clear the flag
legstar85 5:eebd36a47049 363
legstar85 5:eebd36a47049 364 printf("Button A Press \n"); // send message over serial port - can observe in CoolTerm etc.
legstar85 5:eebd36a47049 365 LED01=0;
legstar85 5:eebd36a47049 366 wait(5.0);
legstar85 5:eebd36a47049 367 LED01=1;
legstar85 5:eebd36a47049 368 }
legstar85 5:eebd36a47049 369
legstar85 5:eebd36a47049 370 if (g_ButtonB_flag) { // check if flag i.e. interrupt has occured
legstar85 5:eebd36a47049 371 g_ButtonB_flag = 0; // if it has, clear the flag
legstar85 5:eebd36a47049 372
legstar85 5:eebd36a47049 373 printf("Button B Press \n"); // send message over serial port - can observe in CoolTerm etc.
legstar85 5:eebd36a47049 374 LED02=0;
legstar85 5:eebd36a47049 375 wait(5.0);
legstar85 5:eebd36a47049 376 LED02=1;
legstar85 5:eebd36a47049 377 }
legstar85 6:ebf4784ce92b 378 }
legstar85 6:ebf4784ce92b 379 }