(DA) Internet of Things and Smart Electronics- ELE3006M2122
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Final_Project_V18_DLeaming_25574043
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main.cpp
00001 /* 00002 * Prints a string of characters to the screen buffer, string is cut off after the 83rd pixel. 00003 * @param x - the column number (0 to 83) 00004 * @param y - the row number (0-5) - the display is split into 6 banks - each bank can be considered a row 00005 * 00006 * @ File main.cpp 00007 * @ Author - David Leaming - 25574043 00008 * @ Date - January 2022 00009 * 00010 * Acknowledgements 00011 * Craig A. Evans, University of Leeds, TMP102 Library, Feb 2016 00012 * Dr Edmond Nurellari, University of Lincoln, Joystick, N5110 Libraries & SD Card Libraries 00013 * Paul Staron, Piezo Buzzer utility, April 2019 00014 */ 00015 00016 #include "mbed.h" // Include the library header, ensure the library has been imported into the project 00017 #include "TMP102.h" // 00018 #include "N5110.h" // 00019 #include "Joystick.h" // 00020 #include "Bitmap.h" // 00021 #include "SDFileSystem.h" // 00022 // 00023 TMP102 tmp102(I2C_SDA,I2C_SCL); // Create TMP102 object 00024 // 00025 // VCC,SCE,RST,D/C,MOSI,SCLK,LED // 00026 N5110 lcd(PTC9,PTC0,PTC7,PTD2,PTD1,PTC11); // Create Screen Object - K64F - pwr from 3V3, GND Pin also needs connecting 00027 // 00028 // y x button // 00029 Joystick joystick(PTB10,PTB11,PTC16); // Define Joystick Object 00030 // 00031 SDFileSystem sd(PTE3, PTE1, PTE2, PTE4, "sd"); // MOSI, MISO, SCK, CS - Connections to SD card holder on K64F (SPI interface) 00032 // 00033 Serial pc(USBTX,USBRX); // UART connection for PC 00034 // 00035 struct State { // Struct for state 00036 int output; // output value 00037 float time; // time in state 00038 int nextState[9]; // array of next states 00039 }; // 00040 // 00041 State fsm[11] = { // 00042 {15,0.5,{0,1,0,0,0,10,0,0,0}}, // State 0 - 15 Degrees 00043 {16,0.5,{1,2,1,1,1,0,1,1,1}}, // State 1 - 16 Degrees 00044 {17,0.5,{2,3,2,2,2,1,2,2,2}}, // State 2 - 17 Degrees 00045 {18,0.5,{3,4,3,3,3,2,3,3,3}}, // State 3 - 18 Degrees 00046 {19,0.5,{4,5,4,4,4,3,4,4,4}}, // State 4 - 19 Degrees 00047 {20,0.5,{5,6,5,5,5,4,5,5,5}}, // State 5 - 20 Degrees 00048 {21,0.5,{6,7,6,6,6,5,6,6,6}}, // State 6 - 21 Degrees 00049 {22,0.5,{7,8,7,7,7,6,7,7,7}}, // State 7 - 22 Degrees 00050 {23,0.5,{8,9,8,8,8,7,8,8,8}}, // State 8 - 23 Degrees 00051 {24,0.5,{9,10,9,9,9,8,9,9,9}}, // State 9 - 24 Degrees 00052 {25,0.5,{10,1,10,10,10,9,10,10,10}} // State 10 - 25 Degrees 00053 }; // 00054 // 00055 Ticker ticker_menu; // Create Menu ticker object 00056 // 00057 DigitalOut r_led(LED_RED); // K64F on-board LEDs 00058 DigitalOut g_led(LED_GREEN); // K64F on-board LEDs 00059 DigitalOut b_led(LED_BLUE); // K64F on-board LEDs 00060 // 00061 PwmOut LED01 (PTA1); // PCB Surface Mounted LED's - LED1 00062 PwmOut LED02 (PTA2); // PCB Surface Mounted LED's - LED2 00063 PwmOut LED03 (PTC2); // PCB Surface Mounted LED's - LED3 00064 PwmOut LED04 (PTC3); // PCB Surface Mounted LED's - LED4 00065 PwmOut LED05 (PTC4); // PCB Surface Mounted LED's - LED5 00066 PwmOut LED06 (PTD3); // PCB Surface Mounted LED's - LED6 00067 // 00068 PwmOut Buzzer (PTC10); // PCB Surface Mounted Piezo Buzzer 00069 // 00070 InterruptIn sw2(SW2); // K64F on-board switches 00071 InterruptIn sw3(SW3); // K64F on-board switches 00072 InterruptIn ButtonA (PTB9); // PCB Button - A 00073 InterruptIn ButtonB (PTD0); // PCB Button - B 00074 InterruptIn ButtonBack (PTB10); // PCB Button - Back 00075 // 00076 volatile int g_ButtonA_flag = 0; // Flag - must be volatile as changes within ISR - g_ prefix makes it easier to distinguish it as global 00077 volatile int g_ButtonB_flag = 0; // Flag - must be volatile as changes within ISR - g_ prefix makes it easier to distinguish it as global 00078 volatile int g_ButtonBack_flag = 0; // Flag - must be volatile as changes within ISR - g_ prefix makes it easier to distinguish it as global 00079 volatile int g_sw2_flag = 0; // Flag - must be volatile as changes within ISR - g_ prefix makes it easier to distinguish it as global 00080 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 00081 volatile int option = 0; // Menu option selection based on joystick direction 00082 volatile int g_state = 0; // 00083 volatile int g_StartTemp = 0; // 00084 volatile float g_TempReading = 0.0f; // 00085 // 00086 void error(); // error function hangs flashing an LED 00087 void init_serial(); // setup serial port 00088 void init_K64F(); // set-up the on-board LEDs and switches 00089 void init_PCB(); // set-up the PCB LEDs and buttons 00090 void ButtonA_isr(); // 00091 void ButtonB_isr(); // 00092 void ButtonBack_isr(); // 00093 void sw2_isr(); // 00094 void menu_timer_isr(); // 00095 void OnStartup(); // 00096 void Run(); // 00097 void StartTemp(); // 00098 void delete_file(char filename[]); // 00099 void HighTemp(); // 00100 void SuperHighTemp(); // 00101 void UltraHighTemp(); // 00102 void LowTemp(); // 00103 void SuperLowTemp(); // 00104 void UltraLowTemp(); // 00105 void PeripheralsOffHigh(); // 00106 void PeripheralsOffLow(); // 00107 // 00108 int main() // 00109 { // 00110 init_K64F(); // Initialise the board 00111 init_serial(); // initialise the serial port 00112 init_PCB(); // Initialise the PCB 00113 // 00114 tmp102.init(); // Call the sensor init method using dot syntax 00115 lcd.init(); // Initialise display 00116 joystick.init(); // Initialise joystick 00117 // 00118 ticker_menu.attach(&menu_timer_isr,0.2); // Attach ticker for the Joystick 00119 // 00120 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 00121 ButtonA.rise(&ButtonA_isr); // External push button, pin set to 0V by pull down command, means a rising edge is looked for 00122 ButtonB.rise(&ButtonB_isr); // External push button, pin set to 0V by pull down command, means a rising edge is looked for 00123 // 00124 lcd.setContrast(0.5); // change set contrast in range 0.0 to 1.0 00125 // 00126 OnStartup(); // Call intro screen 00127 Run(); // Call main-menu and functions 00128 } // 00129 // 00130 void init_serial() { // 00131 pc.baud(115200); // set to highest baud - ensure terminal software matches 00132 } // 00133 // 00134 void init_K64F() // 00135 { // 00136 r_led = 1; // on-board LEDs are active-low, so set pin high to turn them off. 00137 g_led = 1; // on-board LEDs are active-low, so set pin high to turn them off. 00138 b_led = 1; // on-board LEDs are active-low, so set pin high to turn them off. 00139 // 00140 sw2.mode(PullNone); // since the on-board switches have external pull-ups, we should disable the internal pull-down 00141 sw3.mode(PullNone); // resistors that are enabled by default using InterruptIn 00142 } // 00143 // 00144 void init_PCB () // 00145 { // 00146 LED01 = 1; // PCB surface mounted LED's are active low - write a 1 to turn them off initiallly 00147 LED02 = 1; // PCB surface mounted LED's are active low - write a 1 to turn them off initiallly 00148 LED03 = 1; // PCB surface mounted LED's are active low - write a 1 to turn them off initiallly 00149 LED04 = 1; // PCB surface mounted LED's are active low - write a 1 to turn them off initiallly 00150 LED05 = 1; // PCB surface mounted LED's are active low - write a 1 to turn them off initiallly 00151 LED06 = 1; // PCB surface mounted LED's are active low - write a 1 to turn them off initiallly 00152 // 00153 Buzzer = 0; // Ensure Piezo Buzzer is off 00154 // 00155 ButtonA.mode(PullDown); // Set pin to Pull Down to OV, meaning that a rising edge is looked for when button is pressed 00156 ButtonB.mode(PullDown); // Set pin to Pull Down to OV, meaning that a rising edge is looked for when button is pressed 00157 } // 00158 // 00159 void ButtonA_isr() // ButtonA event-triggered interrupt 00160 { // 00161 g_ButtonA_flag = 1; // set flag in ISR 00162 } // 00163 // 00164 void ButtonB_isr() // ButtonB event-triggered interrupt 00165 { // 00166 g_ButtonB_flag = 1; // set flag in ISR 00167 } // 00168 // 00169 void ButtonBack_isr() // ButtonB event-triggered interrupt 00170 { // 00171 g_ButtonBack_flag = 1; // set flag in ISR 00172 } // 00173 // 00174 void sw2_isr() // SW2 event-triggered interrupt 00175 { // 00176 g_sw2_flag = 1; // set flag in ISR 00177 } // 00178 // 00179 void menu_timer_isr() // 00180 { // 00181 g_menu_timer_flag = 1; // set flag in ISR 00182 } // 00183 // 00184 void OnStartup() // Run some start up display 00185 { // 00186 Buzzer.period(1.0/659.0); // Welcome sounds from Piezo 00187 Buzzer = 0.5; // 00188 wait(0.5); // 00189 Buzzer.period(1.0/494.0); // 00190 Buzzer = 0.5; // 00191 wait(0.5); // 00192 Buzzer.period(1.0/554.0); // 00193 Buzzer = 0.5; // 00194 wait(0.5); // 00195 Buzzer = 0; // Turn off welcome sounds 00196 lcd.clear(); // Clear buffer at start of every loop 00197 lcd.printString("--------------",0,0); // Can directly print strings at specified co-ordinates (must be less than 84 pixels to fit on display) 00198 lcd.printString(" Smart Cold",0,1); // Just a welcome message before auto moving to main menu 00199 lcd.printString(" Storage",0,2); // 00200 lcd.printString(" Monitoring",0,3); // 00201 lcd.printString("V18 - Jan 2022",0,4); // 00202 lcd.printString("--------------",0,5); // 00203 lcd.refresh(); // Need to refresh display after setting pixels or writing strings 00204 wait(5.0); // Leave welcome screen on for designated amount of time 00205 lcd.clear(); // Clear buffer at start of every loop 00206 lcd.refresh(); // Need to refresh display after setting pixels or writing strings 00207 lcd.printString("--------------",0,0); // 00208 lcd.printString(" Use Joystick",0,1); // Instruction for use of menu 00209 lcd.printString(" To Navigate",0,2); // 00210 lcd.printString("",0,3); // Blank Line 00211 lcd.printString(" A = Select",0,4); // 00212 lcd.printString("--------------",0,5); // 00213 lcd.refresh(); // Need to refresh display after setting pixels or writing strings 00214 wait(5.0); // 00215 init_PCB(); // Ran again to ensure all LED's etc are turned off 00216 printf("Transition to Temp Selection %i\n",StartTemp); // Observe on serial port - ensure transition to correct screen 00217 } // 00218 // 00219 enum EMenuState // An enum controlling the current state of the display. 00220 { // 00221 MENUSTATE_StartTemp, // Defining each menu state to be called upon later (Integer Value of 0) 00222 MENUSTATE_Main, // Defining each menu state to be called upon later (Integer Value of 1) 00223 MENUSTATE_Monitor, // Defining each menu state to be called upon later (Integer Value of 2) 00224 MENUSTATE_OneOff, // Defining each menu state to be called upon later (Integer Value of 3) 00225 MENUSTATE_Results, // Defining each menu state to be called upon later (Integer Value of 4) 00226 MENUSTATE_About, // Defining each menu state to be called upon later (Integer Value of 5) 00227 MENUSTATE_Author, // Defining each menu state to be called upon later (Integer Value of 6) 00228 // 00229 MENUSTATTE_Num, // This is a special enum value that allows us to check and see how many menus we have, +1 of menu integer value 00230 }; // 00231 // 00232 void Run() // 00233 { // 00234 int MenuState = MENUSTATE_StartTemp; // Ensuring that the first Menu State to be brought up is the Temperature Selection Page 00235 int SelectedItem = 0; // 00236 int NumMenuItems = 1; // 00237 int NumFramesInState = 0; // How many frames have we been in the current menu state. 00238 // 00239 char buffer[14]; // Each character is 6 pixels wide, screen is 84 pixels (84/6 = 14) 00240 // 00241 FILE *fp = NULL; // This is our file pointer 00242 // 00243 while(1){ // Project infinite while loop 00244 if (g_menu_timer_flag){ // 00245 g_menu_timer_flag = 0; // 00246 // 00247 bool bAButtonWasPressed = g_ButtonA_flag; // Get the value of the input flags and reset them 00248 bool bBButtonWasPressed = g_ButtonB_flag; // Get the value of the input flags and reset them 00249 g_ButtonA_flag = 0; // 00250 g_ButtonB_flag = 0; // 00251 // 00252 lcd.clear(); // Clear buffer at start of every loop 00253 // 00254 int NewMenuState = MENUSTATTE_Num; // The new menu we want to transition to, if any. 00255 // 00256 switch(MenuState) // Update and Draw whichever menu we're on. 00257 { // 00258 case MENUSTATE_StartTemp: // 00259 { // 00260 NumMenuItems = 1; // Details number of items in the menu. We need this to wrap the selection around properly etc. 00261 if(SelectedItem >= NumMenuItems) // 00262 { // 00263 SelectedItem = 0; // Something has gone wrong, reset selected item. 00264 } // 00265 Direction d = joystick.get_direction(); // 00266 // 00267 StartTemp(); // 00268 // 00269 float g_StartTemp = fsm[g_state].output; // Read temperature from FSM and print selection to LCD 00270 pc.printf("T = %f C\n",g_StartTemp); // Print to serial - allows testing without device attached 00271 printf ("Joystick Direction Points = %i\n",d); // 00272 printf ("State selected = %i\n", g_state); // 00273 int length = sprintf(buffer," T = %.2f C",g_StartTemp); // Print formatted data to buffer - it is important the format specifier ensures the length will fit in the buffer 00274 if (length <= 14){ // If string will fit on display (assuming printing at x=0) 00275 lcd.printString("- Set Target -",0,0); // 00276 lcd.printString("---- Temp ----",0,1); // 00277 lcd.printString(buffer,0,3); // Display on screen 00278 lcd.printString("'A' to Select",0,5); // 00279 lcd.refresh(); // 00280 } // need to refresh display after setting pixels or writing strings 00281 // 00282 if(bAButtonWasPressed) // If A was pressed then we transition to the selected screen. 00283 { // 00284 if(SelectedItem == 0) // If 0 line is selected, move to detailed menu 00285 { // Actually 0 line + 1, see circle draw and selection below 00286 NewMenuState = MENUSTATE_Main; // 00287 } // 00288 } // 00289 } // 00290 break; // 00291 case MENUSTATE_Main: // 00292 { // 00293 NumMenuItems = 5; // Details number of items in the menu. We need this to wrap the selection around properly etc. 00294 if(SelectedItem >= NumMenuItems) // 00295 { // 00296 SelectedItem = 0; // Something has gone wrong, reset selected item. 00297 } // 00298 lcd.printString("---- MENU ----",0,0); // Menu title and selectable options 00299 lcd.printString("M1 - Monitor",0,1); // Printed to the LCD screen 00300 lcd.printString("M2 - One-off",0,2); // 00301 lcd.printString("Results",0,3); // 00302 lcd.printString("About",0,4); // 00303 lcd.printString("Author",0,5); // 00304 // 00305 if(bAButtonWasPressed) // If A was pressed then we transition to the selected screen. 00306 { // 00307 if(SelectedItem == 0) // If 0 line is selected, move to detailed menu 00308 { // Actually 0 line + 1, see circle draw and selection below 00309 NewMenuState = MENUSTATE_Monitor; // 00310 } // 00311 else if(SelectedItem == 1) // If 1 line is selected, move to detailed menu 00312 { // Actually 1 line + 1, see circle draw and selection below 00313 NewMenuState = MENUSTATE_OneOff; // 00314 } // 00315 else if(SelectedItem == 2) // If 2 line is selected, move to detailed menu 00316 { // Actually 2 line + 1, see circle draw and selection below 00317 NewMenuState = MENUSTATE_Results; // 00318 } // 00319 else if(SelectedItem == 3) // If 3 line is selected, move to detailed menu 00320 { // Actually 3 line + 1, see circle draw and selection below 00321 NewMenuState = MENUSTATE_About; // 00322 } // 00323 else if(SelectedItem == 4) // If 4 line is selected, move to detailed menu 00324 { // Actually 4 line + 1, see circle draw and selection below 00325 NewMenuState = MENUSTATE_Author; // 00326 } // 00327 } // 00328 } // 00329 break; // 00330 case MENUSTATE_Monitor: // Call constant measurement menu following top menu selection 00331 { // 00332 NumMenuItems = 1; // Detail the number of items in Menu - need this to wrap the selection around properly etc. 00333 // 00334 if(SelectedItem >= NumMenuItems) // 00335 { // 00336 NewMenuState = MENUSTATE_Main; // Something has gone wrong, drop back to the main menu. 00337 } // 00338 // 00339 float T = tmp102.get_temperature(); // read temperature and print to lcd 00340 pc.printf("T = %f C\n",T); // Print to serial - allows testing without device attached 00341 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 00342 if (length <= 14) // if string will fit on display (assuming printing at x=0) 00343 lcd.printString("-- Constant --",0,0); // 00344 lcd.printString("- Monitoring -",0,1); // 00345 lcd.printString(buffer,0,3); // display on screen 00346 lcd.printString(" 'A' to Menu",0,5); // 00347 lcd.refresh(); // need to refresh display after setting pixels or writing strings 00348 wait(0.5); // 00349 // 00350 if (T >= g_StartTemp + 2 and T < g_StartTemp + 4) { // High temp alarm condition - in real world would be lot lower!! 00351 HighTemp(); // 00352 } // 00353 else { // 00354 PeripheralsOffHigh(); // 00355 } // 00356 if (T >= g_StartTemp + 4 and T < g_StartTemp + 6) { // High temp alarm condition - in real world would be lot lower!! 00357 SuperHighTemp(); // 00358 } // 00359 else { // 00360 PeripheralsOffHigh(); // 00361 } // 00362 if (T >= g_StartTemp + 6) { // 00363 UltraHighTemp(); // 00364 } // 00365 else { // 00366 PeripheralsOffHigh(); // 00367 } // 00368 if (T <= g_StartTemp - 2 and T > g_StartTemp - 4) { // Low temp alarm condition - in real world would be lot lower!! 00369 LowTemp(); // 00370 } // 00371 else { // 00372 PeripheralsOffLow(); // 00373 } // 00374 if(bAButtonWasPressed) // Check if button was pressed 00375 { // 00376 if(SelectedItem == 0) // 00377 { // 00378 NewMenuState = MENUSTATE_Main; // Transition back to the main menu 00379 PeripheralsOffHigh(); // 00380 PeripheralsOffLow(); // 00381 } // 00382 } // 00383 } // 00384 break; // 00385 case MENUSTATE_OneOff: // Call a one off measurement menu following top menu selection 00386 { // 00387 NumMenuItems = 1; // Detail the number of items in Menu - need this to wrap the selection around properly etc. 00388 if(SelectedItem >= NumMenuItems) // 00389 { // 00390 NewMenuState = MENUSTATE_Main; // Something has gone wrong, drop back to the main menu. 00391 } // 00392 // 00393 if(NumFramesInState == 0) // 00394 { // 00395 g_TempReading = tmp102.get_temperature(); // Gather the temp readings only on the frame we enter this state and keep printing this same temp, not to refresh and read new temp. 00396 } // 00397 // 00398 pc.printf("T = %f K\n",g_TempReading); // Print to serial - allows testing without device attached 00399 int length = sprintf(buffer," T = %.2f C",g_TempReading); // print formatted data to buffer - it is important the format specifier ensures the length will fit in the buffer 00400 if (length <= 14){ // if string will fit on display (assuming printing at x=0) 00401 lcd.printString("-- One-Off --",0,0); // 00402 lcd.printString("-- Measure --",0,1); // 00403 lcd.printString(buffer,0,3); // display on screen 00404 lcd.printString(" 'A' to Menu",0,5); // 00405 } // 00406 // 00407 if(bAButtonWasPressed) // Check if button was pressed 00408 { // 00409 if(SelectedItem == 0) // 00410 { // 00411 NewMenuState = MENUSTATE_Main; // Take us back to top menu 00412 } // 00413 } // 00414 } // 00415 break; // 00416 case MENUSTATE_Results: // Call results menu following top menu selection 00417 { // 00418 NumMenuItems = 1; // Detail the number of items in Menu - need this to wrap the selection around properly etc. 00419 if(SelectedItem >= NumMenuItems) // 00420 { // 00421 NewMenuState = MENUSTATE_Main; // Something has gone wrong, drop back to the main menu. 00422 } // 00423 // 00424 if(NumFramesInState == 0) // 00425 { // 00426 if(fp != NULL){ // 00427 printf("Error! File already open!\n"); // 00428 fclose(fp); // 00429 } // 00430 // 00431 fp = fopen("/sd/overnighttemp.csv", "w"); // Open our file handle on the first frame. 00432 } // 00433 // 00434 if (fp == NULL) { // if it can't open the file then print error message 00435 printf("Error! Unable to open file! Returning to main menu.\n"); // 00436 NewMenuState = MENUSTATE_Main; // Something has gone wrong, drop back to the main menu. 00437 } // 00438 else // 00439 { // 00440 float T = tmp102.get_temperature(); // Read temperature and print to lcd 00441 pc.printf("T = %f K\n",T); // Print to serial - allows testing without device attached 00442 fprintf(fp, "%d,%f\n",NumFramesInState,T); // Print formatted string to file (CSV) 00443 // 00444 lcd.printString("-- Results --",0,0); // 00445 lcd.printString(" Writing",0,1); // 00446 lcd.printString(" results to ",0,2); // 00447 lcd.printString(" file...",0,3); // 00448 lcd.printString(" ",0,4); // 00449 lcd.printString(" 'A' to Menu",0,5); // 00450 } // 00451 // 00452 if(bAButtonWasPressed) // Check if button was pressed 00453 { // 00454 if(SelectedItem == 0) // 00455 { // 00456 NewMenuState = MENUSTATE_Main; // Take us back to top menu 00457 } // 00458 } // 00459 } // 00460 break; // 00461 case MENUSTATE_About: // Call About menu following top menu selection 00462 { // 00463 NumMenuItems = 1; // Detail the number of items in Menu - need this to wrap the selection around properly etc. 00464 if(SelectedItem >= NumMenuItems) // 00465 { // 00466 NewMenuState = MENUSTATE_Main; // Something has gone wrong, drop back to the main menu. 00467 } // 00468 // 00469 lcd.printString("--- About ---",0,0); // 00470 lcd.printString("ELE3006M - IoT",0,1); // 00471 lcd.printString(" Project",0,2); // 00472 lcd.printString("Uni of Lincoln",0,3); // 00473 lcd.printString(" 'A' to Menu",0,5); // 00474 lcd.refresh(); // 00475 // 00476 if(bAButtonWasPressed) // Check if button was pressed 00477 { // 00478 if(SelectedItem == 0) // 00479 { // 00480 NewMenuState = MENUSTATE_Main; // Transition back to Main Menu 00481 } // 00482 } // 00483 } // 00484 break; // 00485 case MENUSTATE_Author: // Call Author menu following top menu selection 00486 { // 00487 NumMenuItems = 1; // Detail the number of items in Menu - need this to wrap the selection around properly etc. 00488 if(SelectedItem >= NumMenuItems) // 00489 { // 00490 NewMenuState = MENUSTATE_Main; // Something has gone wrong, drop back to the main menu. 00491 } // 00492 // 00493 lcd.printString("--- Author ---",0,0); // 00494 lcd.printString("David Leaming ",0,1); // 00495 lcd.printString(" 25574043 ",0,2); // 00496 lcd.printString(" VolkerRail",0,3); // 00497 lcd.printString(" 'A' to Menu",0,5); // 00498 // 00499 if(bAButtonWasPressed) // Check if button was pressed 00500 { // 00501 if(SelectedItem == 0) // 00502 { // 00503 NewMenuState = MENUSTATE_Main; // Take us back to top menu 00504 } // 00505 } // 00506 } // 00507 break; // 00508 default: // 00509 { // 00510 NewMenuState = MENUSTATE_Main; // Something has gone wrong, drop back to the main menu. 00511 } // 00512 }; // 00513 // 00514 if(NewMenuState != MENUSTATTE_Num) // If we have requested a new menu state. 00515 { // 00516 printf("Transitioning to MenuState: %i\n", NewMenuState); // Observe on serial port - ensure transition to correct screen 00517 // 00518 MenuState = NewMenuState; // We want to transition the menu to a new state. 00519 // 00520 // Do any bookkeeping needed when moving to new state. 00521 SelectedItem = 0; // Reset the selected item. 00522 NumFramesInState = 0; // Reset the frames in current state count. 00523 // 00524 if(fp){ // 00525 fclose(fp); // Ensure we close the file if the current state had one open. 00526 fp = NULL; // 00527 } // 00528 lcd.clear(); // Clear the display for one frame on state transition. 00529 } // 00530 else // 00531 { // 00532 ++NumFramesInState; // 00533 00534 unsigned int SelectionMarkerRadius = 4; // If we have not selected to move to a new menu. 00535 unsigned int SelectionMarkerX = WIDTH - (2 * SelectionMarkerRadius); // Draw a marker circle at end of line to show which is the currently selected item. 00536 unsigned int SelectionMarkerY = (HEIGHT / 5) * (SelectedItem + 1); // +1 because of the menu title being on first row 00537 lcd.drawCircle(SelectionMarkerX, SelectionMarkerY, SelectionMarkerRadius, FILL_BLACK); // Fill the circle black so it can be seen easily 00538 00539 // Handle Joystick Input 00540 Direction d = joystick.get_direction(); // 00541 printf("Direction = %i\n", d); // 00542 switch (joystick.get_direction()) { // Call to check direction joystick is pointing 00543 case N: // 00544 { // 00545 SelectedItem--; // 00546 printf("Selection decremented to %i\n", SelectedItem); // 00547 } // 00548 break; // 00549 case S: // 00550 { // 00551 SelectedItem++; // 00552 printf("Selection incremented to %i\n", SelectedItem); // 00553 } // 00554 break; // 00555 } // 00556 if(SelectedItem < 0) // Wrap the selection around to the start/end of the menu if it goes below 0 or above NumMenuItems. 00557 { // 00558 SelectedItem = NumMenuItems - 1; // 00559 } // 00560 else if(SelectedItem >= NumMenuItems) // 00561 { // 00562 SelectedItem = 0; // 00563 } // 00564 } // 00565 lcd.refresh(); // Finally update the display. 00566 } // 00567 } // 00568 } // 00569 // 00570 void StartTemp() // 00571 { // 00572 Direction d = joystick.get_direction(); // 00573 // 00574 g_StartTemp = fsm[g_state].output; // Set ouput depending on current state 00575 wait(fsm[g_state].time); // Wait in that state for desired time 00576 g_state = fsm[g_state].nextState[d]; // Read input and update curent state 00577 } // 00578 // 00579 void HighTemp() // 00580 { // 00581 LED01 = !LED01; // Flash LED01 if temperature is over specified - Simulated starting of cold blowers 00582 printf("WARNING - High Temp!! \n"); // 00583 Buzzer.period(1.0/554.0); // Warning Buzzer to extremely high 00584 Buzzer = 0.5; // 00585 wait(0.5); // 00586 Buzzer = 0; // 00587 } // 00588 // 00589 void SuperHighTemp() // 00590 { // 00591 LED01 = !LED01; // Flash LED01 if temperature is over specified - Simulated starting of cold blowers 00592 LED02 = !LED02; // Flash LED02 if temperature is over specified - Simulated starting of cold blowers 00593 printf("WARNING - Super High Temp!! \n"); // 00594 Buzzer.period(1.0/554.0); // Warning Buzzer to extremely high 00595 Buzzer = 0.5; // 00596 wait(0.5); // 00597 Buzzer = 0; // 00598 } // 00599 // 00600 void UltraHighTemp() // 00601 { // 00602 LED01 = !LED01; // Flash LED01 if temperature is over specified - Simulated starting of cold blowers 00603 LED02 = !LED02; // Flash LED02 if temperature is over specified - Simulated starting of cold blowers 00604 LED03 = !LED03; // Flash LED02 if temperature is over specified - Simulated starting of cold blowers 00605 printf("WARNING - Ultra High Temp!! \n"); // 00606 Buzzer.period(1.0/554.0); // Warning Buzzer to extremely high 00607 Buzzer = 0.5; // 00608 wait(0.5); // 00609 Buzzer = 0; // 00610 } // 00611 // 00612 void LowTemp() // 00613 { // 00614 LED04 = !LED04; // Flash LED04 if temperature is over specified - Simulated starting of heaters 00615 printf("WARNING - Low Temp!! \n"); // 00616 Buzzer.period(1.0/554.0); // Warning Buzzer to extremely low 00617 wait(0.5); // 00618 Buzzer = 0; // 00619 } // 00620 // // 00621 void SuperLowTemp() // 00622 { // 00623 LED04 = !LED04; // Flash LED04 if temperature is over specified - Simulated starting of heaters 00624 LED05 = !LED05; // Flash LED05 if temperature is over specified - Simulated starting of heaters 00625 printf("WARNING - Super Low Temp!! \n"); // 00626 Buzzer.period(1.0/554.0); // Warning Buzzer to extremely low 00627 wait(0.5); // 00628 Buzzer = 0; // 00629 } // 00630 // 00631 void UltraLowTemp() // 00632 { // 00633 LED04 = !LED04; // Flash LED04 if temperature is over specified - Simulated starting of heaters 00634 LED05 = !LED05; // Flash LED05 if temperature is over specified - Simulated starting of heaters 00635 LED06 = !LED06; // Flash LED06 if temperature is over specified - Simulated starting of heaters 00636 printf("WARNING - Ultra Low Temp!! \n"); // 00637 Buzzer.period(1.0/554.0); // Warning Buzzer to extremely low 00638 wait(0.5); // 00639 Buzzer = 0; // 00640 } // 00641 // 00642 void PeripheralsOffHigh() // 00643 { // 00644 LED01 = 1; // LED01 off if temperature is below specified - Simulated stopping of cold blowers 00645 LED02 = 1; // LED02 off if temperature is below specified - Simulated stopping of cold blowers 00646 LED03 = 1; // LED03 off if temperature is below specified - Simulated stopping of cold blowers 00647 Buzzer = 0; // Buzzer off if temperature is below specified - Simulated stopping of cold blowers 00648 } // 00649 // 00650 void PeripheralsOffLow() // 00651 { // 00652 LED04 = 1; // LED04 off if temperature is below specified - Simulated stopping of heaters 00653 LED05 = 1; // LED05 off if temperature is below specified - Simulated stopping of heaters 00654 LED06 = 1; // LED06 off if temperature is below specified - Simulated stopping of heaters 00655 Buzzer = 0; // Buzzer off if temperature is below specified - Simulated stopping of heaters 00656 } //
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