(DA) Internet of Things and Smart Electronics- ELE3006M2122 / Mbed 2 deprecated Final_Project_V11_DLeaming_25574043

Addition of FSM to try and set initial starting temperature for use throughout project. Additional menu option. Joystick input 'bouncing' during FSM use - to be debugged

Dependencies:   mbed N5110v02 TMP102 JoystickIoT

main.cpp@8:07323fcab6d1, 2022-01-16 (annotated)

Committer:
legstar85
Date:
Sun Jan 16 22:46:29 2022 +0000
Revision:
8:07323fcab6d1
Parent:
7:d77e95505e43
Child:
9:d71b92c916f8
New version - adding of lights/controls to temperature monitoring

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 8:07323fcab6d1 34 PwmOut LED01 (PTA1); // PCB Surface Mounted LED's - LED1
legstar85 8:07323fcab6d1 35 PwmOut LED02 (PTA2); // PCB Surface Mounted LED's - LED2
legstar85 8:07323fcab6d1 36 PwmOut LED03 (PTC2); // PCB Surface Mounted LED's - LED3
legstar85 8:07323fcab6d1 37 PwmOut LED04 (PTC3); // PCB Surface Mounted LED's - LED4
legstar85 8:07323fcab6d1 38 PwmOut LED05 (PTC4); // PCB Surface Mounted LED's - LED5
legstar85 8:07323fcab6d1 39 PwmOut LED06 (PTD3); // PCB Surface Mounted LED's - LED6
legstar85 8:07323fcab6d1 40
legstar85 8:07323fcab6d1 41 PwmOut Buzzer (PTC10); // PCB Surface Mounted Piezo Buzzer
legstar85 3:80c1eba78f9b 42
legstar85 2:e0091b5311f1 43 InterruptIn sw2(SW2); // K64F on-board switches
legstar85 2:e0091b5311f1 44 InterruptIn sw3(SW3); // K64F on-board switches
legstar85 3:80c1eba78f9b 45 InterruptIn ButtonA (PTB9); // PCB Button - A
legstar85 3:80c1eba78f9b 46 InterruptIn ButtonB (PTD0); // PCB Button - B
legstar85 7:d77e95505e43 47 InterruptIn ButtonBack (PTB10); // PCB Button - Back
legstar85 3:80c1eba78f9b 48
legstar85 5:eebd36a47049 49 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 50 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 7:d77e95505e43 51 volatile int g_ButtonBack_flag = 0; // flag - must be volatile as changes within ISR - g_ prefix makes it easier to distinguish it as global
legstar85 5:eebd36a47049 52 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 53 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 54 volatile int option = 0; // Menu option selection based on joystick direction
legstar85 2:e0091b5311f1 55
legstar85 2:e0091b5311f1 56 void error(); // error function hangs flashing an LED
legstar85 2:e0091b5311f1 57 void init_serial(); // setup serial port
legstar85 2:e0091b5311f1 58 void init_K64F(); // set-up the on-board LEDs and switches
legstar85 3:80c1eba78f9b 59 void init_PCB(); // set-up the PCB LEDs and buttons
legstar85 5:eebd36a47049 60 void ButtonA_isr(); //
legstar85 5:eebd36a47049 61 void ButtonB_isr(); //
legstar85 7:d77e95505e43 62 void ButtonBack_isr(); //
legstar85 5:eebd36a47049 63 void sw2_isr(); //
legstar85 5:eebd36a47049 64 void menu_timer_isr(); //
legstar85 6:ebf4784ce92b 65 void OnStartup(); //
legstar85 6:ebf4784ce92b 66 void Run(); //
legstar85 6:ebf4784ce92b 67 void ConstantMonitoring(); //
eencae 0:21a200b880d7 68
eencae 0:21a200b880d7 69 int main()
eencae 0:21a200b880d7 70 {
legstar85 2:e0091b5311f1 71 init_K64F(); // initialise the board
legstar85 2:e0091b5311f1 72 init_serial(); // initialise the serial port
legstar85 3:80c1eba78f9b 73 init_PCB(); // initialise the PCB
legstar85 3:80c1eba78f9b 74
legstar85 2:e0091b5311f1 75 tmp102.init(); // call the sensor init method using dot syntax
legstar85 2:e0091b5311f1 76 lcd.init(); // initialise display
legstar85 3:80c1eba78f9b 77 joystick.init(); // initialise joystick
legstar85 3:80c1eba78f9b 78
legstar85 5:eebd36a47049 79 ticker_menu.attach(&menu_timer_isr,0.2); // Attach ticker for the Joystick
legstar85 5:eebd36a47049 80
legstar85 3:80c1eba78f9b 81 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 82 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 83 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 84
legstar85 2:e0091b5311f1 85 lcd.setContrast(0.5); // change set contrast in range 0.0 to 1.0
eencae 0:21a200b880d7 86
legstar85 6:ebf4784ce92b 87 OnStartup(); //
legstar85 6:ebf4784ce92b 88 Run(); //
legstar85 5:eebd36a47049 89
legstar85 5:eebd36a47049 90 }
eencae 0:21a200b880d7 91
eencae 0:21a200b880d7 92 void init_serial() {
legstar85 2:e0091b5311f1 93 pc.baud(115200); // set to highest baud - ensure terminal software matches
eencae 0:21a200b880d7 94 }
eencae 0:21a200b880d7 95
eencae 0:21a200b880d7 96 void init_K64F()
eencae 0:21a200b880d7 97 {
legstar85 2:e0091b5311f1 98 r_led = 1; // on-board LEDs are active-low, so set pin high to turn them off.
legstar85 2:e0091b5311f1 99 g_led = 1; // on-board LEDs are active-low, so set pin high to turn them off.
legstar85 2:e0091b5311f1 100 b_led = 1; // on-board LEDs are active-low, so set pin high to turn them off.
eencae 0:21a200b880d7 101
legstar85 2:e0091b5311f1 102 sw2.mode(PullNone); // since the on-board switches have external pull-ups, we should disable the internal pull-down
legstar85 2:e0091b5311f1 103 sw3.mode(PullNone); // resistors that are enabled by default using InterruptIn
eencae 0:21a200b880d7 104
eencae 0:21a200b880d7 105 }
legstar85 3:80c1eba78f9b 106
legstar85 3:80c1eba78f9b 107 void init_PCB ()
legstar85 3:80c1eba78f9b 108 {
legstar85 3:80c1eba78f9b 109 LED01 = 1; // PCB surface mounted LED's are active low - write a 1 to turn them off initiallly
legstar85 3:80c1eba78f9b 110 LED02 = 1;
legstar85 3:80c1eba78f9b 111 LED03 = 1;
legstar85 3:80c1eba78f9b 112 LED04 = 1;
legstar85 3:80c1eba78f9b 113 LED05 = 1;
legstar85 3:80c1eba78f9b 114 LED06 = 1;
legstar85 3:80c1eba78f9b 115
legstar85 3:80c1eba78f9b 116 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 117 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 118
legstar85 3:80c1eba78f9b 119 }
legstar85 3:80c1eba78f9b 120
legstar85 3:80c1eba78f9b 121 void ButtonA_isr() // ButtonA event-triggered interrupt
legstar85 3:80c1eba78f9b 122 {
legstar85 3:80c1eba78f9b 123 g_ButtonA_flag = 1; // set flag in ISR
legstar85 3:80c1eba78f9b 124 }
legstar85 3:80c1eba78f9b 125
legstar85 3:80c1eba78f9b 126 void ButtonB_isr() // ButtonB event-triggered interrupt
legstar85 3:80c1eba78f9b 127 {
legstar85 3:80c1eba78f9b 128 g_ButtonB_flag = 1; // set flag in ISR
legstar85 3:80c1eba78f9b 129 }
legstar85 3:80c1eba78f9b 130
legstar85 7:d77e95505e43 131 void ButtonBack_isr() // ButtonB event-triggered interrupt
legstar85 7:d77e95505e43 132 {
legstar85 7:d77e95505e43 133 g_ButtonBack_flag = 1; // set flag in ISR
legstar85 7:d77e95505e43 134 }
legstar85 7:d77e95505e43 135
legstar85 3:80c1eba78f9b 136 void sw2_isr() // SW2 event-triggered interrupt
legstar85 3:80c1eba78f9b 137 {
legstar85 3:80c1eba78f9b 138 g_sw2_flag = 1; // set flag in ISR
legstar85 5:eebd36a47049 139 }
legstar85 5:eebd36a47049 140
legstar85 5:eebd36a47049 141 void menu_timer_isr()
legstar85 5:eebd36a47049 142 {
legstar85 6:ebf4784ce92b 143 g_menu_timer_flag = 1; // set flag in ISR
legstar85 6:ebf4784ce92b 144 }
legstar85 6:ebf4784ce92b 145
legstar85 6:ebf4784ce92b 146 void OnStartup() //Run some start up display
legstar85 6:ebf4784ce92b 147 {
legstar85 6:ebf4784ce92b 148 lcd.clear(); // clear buffer at start of every loop
legstar85 7:d77e95505e43 149 lcd.printString("--------------",0,0); // can directly print strings at specified co-ordinates (must be less than 84 pixels to fit on display)
legstar85 7:d77e95505e43 150 lcd.printString(" Smart Cold",0,1); // Just a welcome message before auto moving to main menu
legstar85 7:d77e95505e43 151 lcd.printString(" Storage",0,2); //
legstar85 7:d77e95505e43 152 lcd.printString(" Monitoring",0,3); //
legstar85 8:07323fcab6d1 153 lcd.printString("V09 - Jan 2022",0,4); //
legstar85 7:d77e95505e43 154 lcd.printString("--------------",0,5); //
legstar85 6:ebf4784ce92b 155 lcd.refresh(); // need to refresh display after setting pixels or writing strings
legstar85 6:ebf4784ce92b 156 wait(5.0); // leave welcome screen on for designated amount of time
legstar85 6:ebf4784ce92b 157 lcd.clear(); // clear buffer at start of every loop
legstar85 6:ebf4784ce92b 158 lcd.refresh(); // need to refresh display after setting pixels or writing strings
legstar85 8:07323fcab6d1 159 lcd.printString("--------------",0,0); //
legstar85 8:07323fcab6d1 160 lcd.printString(" Use Joystick",0,1); // Instruction for use of menu
legstar85 8:07323fcab6d1 161 lcd.printString(" To Navigate",0,2); //
legstar85 8:07323fcab6d1 162 lcd.printString("",0,3); // Blank Line
legstar85 8:07323fcab6d1 163 lcd.printString(" A = Select",0,4); //
legstar85 8:07323fcab6d1 164 lcd.printString("--------------",0,5); //
legstar85 6:ebf4784ce92b 165 lcd.refresh(); // need to refresh display after setting pixels or writing strings
legstar85 7:d77e95505e43 166 wait(5.0); //
legstar85 5:eebd36a47049 167 }
legstar85 5:eebd36a47049 168
legstar85 6:ebf4784ce92b 169 enum EMenuState //An enum controlling the current state of the display.
legstar85 6:ebf4784ce92b 170 {
legstar85 6:ebf4784ce92b 171 MENUSTATE_Main,
legstar85 6:ebf4784ce92b 172 MENUSTATE_Monitor,
legstar85 6:ebf4784ce92b 173 MENUSTATE_OneOff,
legstar85 6:ebf4784ce92b 174 MENUSTATE_About,
legstar85 7:d77e95505e43 175 MENUSTATE_Author,
legstar85 6:ebf4784ce92b 176
legstar85 6:ebf4784ce92b 177 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 178 };
legstar85 6:ebf4784ce92b 179
legstar85 6:ebf4784ce92b 180 void Run()
legstar85 5:eebd36a47049 181 {
legstar85 6:ebf4784ce92b 182 int MenuState;
legstar85 6:ebf4784ce92b 183 int SelectedItem = 0;
legstar85 6:ebf4784ce92b 184 int NumMenuItems = 1;
legstar85 6:ebf4784ce92b 185
legstar85 7:d77e95505e43 186 char buffer[14]; // each character is 6 pixels wide, screen is 84 pixels (84/6 = 14)
legstar85 7:d77e95505e43 187
legstar85 6:ebf4784ce92b 188 while(1){
legstar85 6:ebf4784ce92b 189 if (g_menu_timer_flag){
legstar85 5:eebd36a47049 190 g_menu_timer_flag = 0;
legstar85 5:eebd36a47049 191
legstar85 6:ebf4784ce92b 192 bool bAButtonWasPressed = g_ButtonA_flag; // Get the value of the input flags and reset them
legstar85 6:ebf4784ce92b 193 bool bBButtonWasPressed = g_ButtonB_flag;
legstar85 6:ebf4784ce92b 194 g_ButtonA_flag = 0;
legstar85 6:ebf4784ce92b 195 g_ButtonB_flag = 0;
legstar85 6:ebf4784ce92b 196
legstar85 5:eebd36a47049 197 lcd.clear(); // clear buffer at start of every loop
legstar85 6:ebf4784ce92b 198
legstar85 6:ebf4784ce92b 199 int NewMenuState = MENUSTATTE_Num; // The new menu we want to transition to, if any.
legstar85 6:ebf4784ce92b 200
legstar85 6:ebf4784ce92b 201 switch(MenuState) // Update and Draw whichever menu we're on.
legstar85 6:ebf4784ce92b 202 {
legstar85 6:ebf4784ce92b 203 case MENUSTATE_Main:
legstar85 6:ebf4784ce92b 204 {
legstar85 6:ebf4784ce92b 205
legstar85 7:d77e95505e43 206 NumMenuItems = 4; // 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 207 if(SelectedItem >= NumMenuItems)
legstar85 6:ebf4784ce92b 208 {
legstar85 6:ebf4784ce92b 209
legstar85 6:ebf4784ce92b 210 SelectedItem = 0; // Something has gone wrong, reset selected item.
legstar85 6:ebf4784ce92b 211 }
legstar85 6:ebf4784ce92b 212 lcd.printString("---- MENU ----",0,0);
legstar85 6:ebf4784ce92b 213 lcd.printString("M1 - Monitor",0,1);
legstar85 6:ebf4784ce92b 214 lcd.printString("M2 - One-off",0,2);
legstar85 6:ebf4784ce92b 215 lcd.printString("About",0,3);
legstar85 7:d77e95505e43 216 lcd.printString("Author",0,4);
legstar85 6:ebf4784ce92b 217
legstar85 6:ebf4784ce92b 218 if(bAButtonWasPressed) // If A was pressed then we transition to the selected screen.
legstar85 6:ebf4784ce92b 219 {
legstar85 8:07323fcab6d1 220 if(SelectedItem == 0) // If 0 line is selected, move to detailed menu
legstar85 8:07323fcab6d1 221 { // Actually 0 line + 1, see circle draw and selection below
legstar85 6:ebf4784ce92b 222 NewMenuState = MENUSTATE_Monitor;
legstar85 6:ebf4784ce92b 223 }
legstar85 8:07323fcab6d1 224 else if(SelectedItem == 1) // If 1 line is selected, move to detailed menu
legstar85 8:07323fcab6d1 225 { // Actually 1 line + 1, see circle draw and selection below
legstar85 6:ebf4784ce92b 226 NewMenuState = MENUSTATE_OneOff;
legstar85 6:ebf4784ce92b 227 }
legstar85 8:07323fcab6d1 228 else if(SelectedItem == 2) // If 2 line is selected, move to detailed menu
legstar85 8:07323fcab6d1 229 { // Actually 2 line + 1, see circle draw and selection below
legstar85 6:ebf4784ce92b 230 NewMenuState = MENUSTATE_About;
legstar85 6:ebf4784ce92b 231 }
legstar85 8:07323fcab6d1 232 else if(SelectedItem == 3) // If 3 line is selected, move to detailed menu
legstar85 8:07323fcab6d1 233 { // Actually 3 line + 1, see circle draw and selection below
legstar85 7:d77e95505e43 234 NewMenuState = MENUSTATE_Author;
legstar85 7:d77e95505e43 235 }
legstar85 6:ebf4784ce92b 236 }
legstar85 6:ebf4784ce92b 237 }
legstar85 6:ebf4784ce92b 238 break;
legstar85 6:ebf4784ce92b 239 case MENUSTATE_Monitor:
legstar85 6:ebf4784ce92b 240 {
legstar85 6:ebf4784ce92b 241
legstar85 8:07323fcab6d1 242 NumMenuItems = 1; // Detail the number of items in Menu - need this to wrap the selection around properly etc.
legstar85 6:ebf4784ce92b 243
legstar85 6:ebf4784ce92b 244 if(SelectedItem >= NumMenuItems)
legstar85 6:ebf4784ce92b 245 {
legstar85 6:ebf4784ce92b 246 NewMenuState = MENUSTATE_Main; // Something has gone wrong, drop back to the main menu.
legstar85 6:ebf4784ce92b 247 }
legstar85 6:ebf4784ce92b 248
legstar85 7:d77e95505e43 249 float T = tmp102.get_temperature(); // read temperature and print to lcd
legstar85 7:d77e95505e43 250 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 7:d77e95505e43 251 if (length <= 14) // if string will fit on display (assuming printing at x=0)
legstar85 7:d77e95505e43 252 lcd.printString("-- Constant --",0,0);
legstar85 7:d77e95505e43 253 lcd.printString("- Monitoring -",0,1);
legstar85 7:d77e95505e43 254 lcd.printString(buffer,0,3); // display on screen
legstar85 7:d77e95505e43 255 lcd.printString(" 'A' to Menu",0,5);
legstar85 7:d77e95505e43 256 lcd.refresh(); // need to refresh display after setting pixels or writing strings
legstar85 8:07323fcab6d1 257 wait(0.5);
legstar85 8:07323fcab6d1 258
legstar85 8:07323fcab6d1 259 float high_temp = tmp102.get_temperature(); // read temperature
legstar85 8:07323fcab6d1 260 if (high_temp >= 22) { // High temp alarm condition - in real world would be lot lower!!
legstar85 8:07323fcab6d1 261 LED01 = 0; // Light LED01 if temperature is over specified
legstar85 8:07323fcab6d1 262 LED02 = 0; // Light LED02 if temperature is over specified
legstar85 8:07323fcab6d1 263 LED03 = 0; // Light LED03 if temperature is over specified
legstar85 8:07323fcab6d1 264 }
legstar85 8:07323fcab6d1 265 else {
legstar85 8:07323fcab6d1 266 LED01 = 1; // LED01 off if temperature is below specified
legstar85 8:07323fcab6d1 267 LED02 = 1; // LED01 off if temperature is below specified
legstar85 8:07323fcab6d1 268 LED03 = 1; // LED01 off if temperature is below specified
legstar85 8:07323fcab6d1 269 }
legstar85 7:d77e95505e43 270
legstar85 6:ebf4784ce92b 271 if(bAButtonWasPressed)
legstar85 6:ebf4784ce92b 272 {
legstar85 6:ebf4784ce92b 273 if(SelectedItem == 0)
legstar85 6:ebf4784ce92b 274 {
legstar85 6:ebf4784ce92b 275 NewMenuState = MENUSTATE_Main;
legstar85 6:ebf4784ce92b 276 }
legstar85 6:ebf4784ce92b 277 }
legstar85 6:ebf4784ce92b 278 }
legstar85 6:ebf4784ce92b 279 break;
legstar85 6:ebf4784ce92b 280 case MENUSTATE_OneOff:
legstar85 6:ebf4784ce92b 281 {
legstar85 6:ebf4784ce92b 282
legstar85 8:07323fcab6d1 283 NumMenuItems = 1; // Detail the number of items in Menu - need this to wrap the selection around properly etc.
legstar85 6:ebf4784ce92b 284 if(SelectedItem >= NumMenuItems)
legstar85 6:ebf4784ce92b 285 {
legstar85 7:d77e95505e43 286 NewMenuState = MENUSTATE_Main; // Something has gone wrong, drop back to the main menu.
legstar85 6:ebf4784ce92b 287 }
legstar85 6:ebf4784ce92b 288
legstar85 8:07323fcab6d1 289 float T = tmp102.get_temperature(); // read temperature and print to lcd
legstar85 8:07323fcab6d1 290 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 8:07323fcab6d1 291 if (length <= 14) // if string will fit on display (assuming printing at x=0)
legstar85 8:07323fcab6d1 292 lcd.printString("-- One-Off --",0,0);
legstar85 8:07323fcab6d1 293 lcd.printString("-- Measure --",0,1);
legstar85 8:07323fcab6d1 294 lcd.printString(buffer,0,3); // display on screen
legstar85 8:07323fcab6d1 295 lcd.printString(" 'A' to Menu",0,5);
legstar85 6:ebf4784ce92b 296
legstar85 6:ebf4784ce92b 297 if(bAButtonWasPressed)
legstar85 6:ebf4784ce92b 298 {
legstar85 6:ebf4784ce92b 299 if(SelectedItem == 0)
legstar85 6:ebf4784ce92b 300 {
legstar85 8:07323fcab6d1 301 NewMenuState = MENUSTATE_Main; // Take us back to top menu
legstar85 6:ebf4784ce92b 302 }
legstar85 6:ebf4784ce92b 303 }
legstar85 6:ebf4784ce92b 304
legstar85 6:ebf4784ce92b 305 }
legstar85 6:ebf4784ce92b 306 break;
legstar85 6:ebf4784ce92b 307 case MENUSTATE_About:
legstar85 6:ebf4784ce92b 308 {
legstar85 6:ebf4784ce92b 309
legstar85 8:07323fcab6d1 310 NumMenuItems = 1; // Detail the number of items in Menu - need this to wrap the selection around properly etc.
legstar85 6:ebf4784ce92b 311 if(SelectedItem >= NumMenuItems)
legstar85 6:ebf4784ce92b 312 {
legstar85 6:ebf4784ce92b 313 NewMenuState = MENUSTATE_Main; // Something has gone wrong, drop back to the main menu.
legstar85 6:ebf4784ce92b 314 }
legstar85 6:ebf4784ce92b 315
legstar85 7:d77e95505e43 316 lcd.printString("--- About ---",0,0);
legstar85 7:d77e95505e43 317 lcd.printString("ELE3006M - IoT",0,1);
legstar85 7:d77e95505e43 318 lcd.printString(" Project",0,2);
legstar85 7:d77e95505e43 319 lcd.printString("Uni of Lincoln",0,3);
legstar85 8:07323fcab6d1 320 lcd.printString(" 'A' to Menu",0,5);
legstar85 8:07323fcab6d1 321 lcd.refresh();
legstar85 6:ebf4784ce92b 322
legstar85 6:ebf4784ce92b 323 if(bAButtonWasPressed)
legstar85 6:ebf4784ce92b 324 {
legstar85 6:ebf4784ce92b 325 if(SelectedItem == 0)
legstar85 6:ebf4784ce92b 326 {
legstar85 6:ebf4784ce92b 327 NewMenuState = MENUSTATE_Main;
legstar85 6:ebf4784ce92b 328 }
legstar85 6:ebf4784ce92b 329 }
legstar85 6:ebf4784ce92b 330 }
legstar85 6:ebf4784ce92b 331 break;
legstar85 7:d77e95505e43 332 case MENUSTATE_Author:
legstar85 7:d77e95505e43 333 {
legstar85 7:d77e95505e43 334
legstar85 8:07323fcab6d1 335 NumMenuItems = 1; // Detail the number of items in Menu - need this to wrap the selection around properly etc.
legstar85 7:d77e95505e43 336 if(SelectedItem >= NumMenuItems)
legstar85 7:d77e95505e43 337 {
legstar85 7:d77e95505e43 338 NewMenuState = MENUSTATE_Main; // Something has gone wrong, drop back to the main menu.
legstar85 7:d77e95505e43 339 }
legstar85 7:d77e95505e43 340
legstar85 7:d77e95505e43 341 lcd.printString("--- Author ---",0,0);
legstar85 8:07323fcab6d1 342 lcd.printString("David Leaming ",0,1);
legstar85 8:07323fcab6d1 343 lcd.printString(" 25574043 ",0,2);
legstar85 8:07323fcab6d1 344 lcd.printString(" VolkerRail",0,3);
legstar85 7:d77e95505e43 345 lcd.printString(" 'A' to Menu",0,5);
legstar85 7:d77e95505e43 346
legstar85 7:d77e95505e43 347 if(bAButtonWasPressed)
legstar85 7:d77e95505e43 348 {
legstar85 7:d77e95505e43 349 if(SelectedItem == 0)
legstar85 7:d77e95505e43 350 {
legstar85 8:07323fcab6d1 351 NewMenuState = MENUSTATE_Main; // Take us back to top menu
legstar85 7:d77e95505e43 352 }
legstar85 7:d77e95505e43 353 }
legstar85 7:d77e95505e43 354 }
legstar85 7:d77e95505e43 355 break;
legstar85 7:d77e95505e43 356
legstar85 6:ebf4784ce92b 357 default:
legstar85 6:ebf4784ce92b 358 {
legstar85 6:ebf4784ce92b 359 NewMenuState = MENUSTATE_Main; // Something has gone wrong, drop back to the main menu.
legstar85 6:ebf4784ce92b 360 }
legstar85 6:ebf4784ce92b 361 };
legstar85 5:eebd36a47049 362
legstar85 6:ebf4784ce92b 363 if(NewMenuState != MENUSTATTE_Num) // If we have requested a new menu state.
legstar85 6:ebf4784ce92b 364 {
legstar85 8:07323fcab6d1 365 printf("Transitioning to MenuState: %i\n", NewMenuState); // Observe on serial port - ensure transition to correct screen
legstar85 6:ebf4784ce92b 366
legstar85 6:ebf4784ce92b 367 MenuState = NewMenuState; // We want to transition the menu to a new state.
legstar85 6:ebf4784ce92b 368
legstar85 6:ebf4784ce92b 369 // Do any bookkeeping needed when moving to new state.
legstar85 6:ebf4784ce92b 370 SelectedItem = 0; // Reset the selected item.
legstar85 6:ebf4784ce92b 371
legstar85 6:ebf4784ce92b 372 lcd.clear(); // Clear the display for one frame on state transition.
legstar85 6:ebf4784ce92b 373 } // Could do something else like invert colour etc here.
legstar85 6:ebf4784ce92b 374 else
legstar85 6:ebf4784ce92b 375 {
legstar85 6:ebf4784ce92b 376
legstar85 7:d77e95505e43 377 // If we have not selected to move to a new menu.
legstar85 7:d77e95505e43 378 unsigned int SelectionMarkerRadius = 4 ; // Draw a marker circle at end of line to show which is the currently selected item.
legstar85 7:d77e95505e43 379 unsigned int SelectionMarkerX = WIDTH - (2 * SelectionMarkerRadius);
legstar85 8:07323fcab6d1 380 unsigned int SelectionMarkerY = (HEIGHT / 5) * (SelectedItem + 1); // +1 because of the menu title being on first row
legstar85 7:d77e95505e43 381 lcd.drawCircle(SelectionMarkerX, SelectionMarkerY, SelectionMarkerRadius, FILL_BLACK);
legstar85 6:ebf4784ce92b 382
legstar85 6:ebf4784ce92b 383 // Handle Joystick Input
legstar85 6:ebf4784ce92b 384 switch (joystick.get_direction()) { // Call to check direction joystick is pointing
legstar85 6:ebf4784ce92b 385 printf("Direction = %i\n"); //
legstar85 6:ebf4784ce92b 386 case N: //
legstar85 6:ebf4784ce92b 387 SelectedItem--; //
legstar85 6:ebf4784ce92b 388 break; //
legstar85 6:ebf4784ce92b 389 case S: //
legstar85 6:ebf4784ce92b 390 SelectedItem++; //
legstar85 6:ebf4784ce92b 391 break; //
legstar85 6:ebf4784ce92b 392 }
legstar85 6:ebf4784ce92b 393
legstar85 6:ebf4784ce92b 394 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 395 {
legstar85 6:ebf4784ce92b 396 SelectedItem = NumMenuItems - 1;
legstar85 6:ebf4784ce92b 397 }
legstar85 6:ebf4784ce92b 398 else if(SelectedItem >= NumMenuItems)
legstar85 6:ebf4784ce92b 399 {
legstar85 6:ebf4784ce92b 400 SelectedItem = 0;
legstar85 6:ebf4784ce92b 401 }
legstar85 5:eebd36a47049 402 }
legstar85 5:eebd36a47049 403
legstar85 6:ebf4784ce92b 404 lcd.refresh(); //Finally update the display.
legstar85 6:ebf4784ce92b 405 }
legstar85 6:ebf4784ce92b 406 }
legstar85 5:eebd36a47049 407 }
legstar85 6:ebf4784ce92b 408
legstar85 5:eebd36a47049 409