(DA) Internet of Things and Smart Electronics- ELE3006M2122 / Mbed 2 deprecated Final_Project_V07_DLeaming_25574043

Production of selectable menu

Dependencies:   mbed N5110v02 TMP102 JoystickIoT

main.cpp@5:eebd36a47049, 2022-01-07 (annotated)

Committer:
legstar85
Date:
Fri Jan 07 23:14:23 2022 +0000
Revision:
5:eebd36a47049
Parent:
4:0090145b3286
Child:
6:ebf4784ce92b
Initial modularisation of code, attempt to start building 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(); //
eencae 0:21a200b880d7 60
eencae 0:21a200b880d7 61 int main()
eencae 0:21a200b880d7 62 {
legstar85 2:e0091b5311f1 63 init_K64F(); // initialise the board
legstar85 2:e0091b5311f1 64 init_serial(); // initialise the serial port
legstar85 3:80c1eba78f9b 65 init_PCB(); // initialise the PCB
legstar85 3:80c1eba78f9b 66
legstar85 2:e0091b5311f1 67 tmp102.init(); // call the sensor init method using dot syntax
legstar85 2:e0091b5311f1 68 lcd.init(); // initialise display
legstar85 3:80c1eba78f9b 69 joystick.init(); // initialise joystick
legstar85 3:80c1eba78f9b 70
legstar85 5:eebd36a47049 71 ticker_menu.attach(&menu_timer_isr,0.2); // Attach ticker for the Joystick
legstar85 5:eebd36a47049 72
legstar85 3:80c1eba78f9b 73 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 74 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 75 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 76
legstar85 2:e0091b5311f1 77 lcd.setContrast(0.5); // change set contrast in range 0.0 to 1.0
eencae 0:21a200b880d7 78
legstar85 3:80c1eba78f9b 79 char buffer[14]; // each character is 6 pixels wide, screen is 84 pixels (84/6 = 14)
legstar85 3:80c1eba78f9b 80
legstar85 3:80c1eba78f9b 81 lcd.clear(); // clear buffer at start of every loop
legstar85 3:80c1eba78f9b 82 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 3:80c1eba78f9b 83 lcd.printString("Storage",0,1); // Just a welcome message before auto moving to main menu
legstar85 3:80c1eba78f9b 84 lcd.printString("Monitoring",0,2);
legstar85 3:80c1eba78f9b 85 lcd.printString("",0,2); // Blank Line
legstar85 3:80c1eba78f9b 86 lcd.printString("V1.0 - 2021",0,4);
legstar85 3:80c1eba78f9b 87 lcd.printString("David Leaming",0,5);
legstar85 3:80c1eba78f9b 88 lcd.refresh(); // need to refresh display after setting pixels or writing strings
legstar85 3:80c1eba78f9b 89 wait(5.0); // leave welcome screen on for designated amount of time
legstar85 3:80c1eba78f9b 90 lcd.clear(); // clear buffer at start of every loop
legstar85 3:80c1eba78f9b 91 lcd.refresh(); // need to refresh display after setting pixels or writing strings
legstar85 3:80c1eba78f9b 92 lcd.printString("Use Joystick",0,0); // Instruction for use of menu
legstar85 3:80c1eba78f9b 93 lcd.printString("To Navigate",0,1);
legstar85 3:80c1eba78f9b 94 lcd.printString("",0,2); // Blank Line
legstar85 3:80c1eba78f9b 95 lcd.printString("A = Select",0,3);
legstar85 3:80c1eba78f9b 96 lcd.refresh(); // need to refresh display after setting pixels or writing strings
legstar85 3:80c1eba78f9b 97 wait(5.0);
legstar85 3:80c1eba78f9b 98
legstar85 5:eebd36a47049 99 MainMenu(); //
legstar85 5:eebd36a47049 100
legstar85 5:eebd36a47049 101 }
eencae 0:21a200b880d7 102
eencae 0:21a200b880d7 103 void init_serial() {
legstar85 2:e0091b5311f1 104 pc.baud(115200); // set to highest baud - ensure terminal software matches
eencae 0:21a200b880d7 105 }
eencae 0:21a200b880d7 106
eencae 0:21a200b880d7 107 void init_K64F()
eencae 0:21a200b880d7 108 {
legstar85 2:e0091b5311f1 109 r_led = 1; // on-board LEDs are active-low, so set pin high to turn them off.
legstar85 2:e0091b5311f1 110 g_led = 1; // on-board LEDs are active-low, so set pin high to turn them off.
legstar85 2:e0091b5311f1 111 b_led = 1; // on-board LEDs are active-low, so set pin high to turn them off.
eencae 0:21a200b880d7 112
legstar85 2:e0091b5311f1 113 sw2.mode(PullNone); // since the on-board switches have external pull-ups, we should disable the internal pull-down
legstar85 2:e0091b5311f1 114 sw3.mode(PullNone); // resistors that are enabled by default using InterruptIn
eencae 0:21a200b880d7 115
eencae 0:21a200b880d7 116 }
legstar85 3:80c1eba78f9b 117
legstar85 3:80c1eba78f9b 118 void init_PCB ()
legstar85 3:80c1eba78f9b 119 {
legstar85 3:80c1eba78f9b 120 LED01 = 1; // PCB surface mounted LED's are active low - write a 1 to turn them off initiallly
legstar85 3:80c1eba78f9b 121 LED02 = 1;
legstar85 3:80c1eba78f9b 122 LED03 = 1;
legstar85 3:80c1eba78f9b 123 LED04 = 1;
legstar85 3:80c1eba78f9b 124 LED05 = 1;
legstar85 3:80c1eba78f9b 125 LED06 = 1;
legstar85 3:80c1eba78f9b 126
legstar85 3:80c1eba78f9b 127 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 128 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 129
legstar85 3:80c1eba78f9b 130 }
legstar85 3:80c1eba78f9b 131
legstar85 3:80c1eba78f9b 132 void ButtonA_isr() // ButtonA event-triggered interrupt
legstar85 3:80c1eba78f9b 133 {
legstar85 3:80c1eba78f9b 134 g_ButtonA_flag = 1; // set flag in ISR
legstar85 3:80c1eba78f9b 135 }
legstar85 3:80c1eba78f9b 136
legstar85 3:80c1eba78f9b 137 void ButtonB_isr() // ButtonB event-triggered interrupt
legstar85 3:80c1eba78f9b 138 {
legstar85 3:80c1eba78f9b 139 g_ButtonB_flag = 1; // set flag in ISR
legstar85 3:80c1eba78f9b 140 }
legstar85 3:80c1eba78f9b 141
legstar85 3:80c1eba78f9b 142 void sw2_isr() // SW2 event-triggered interrupt
legstar85 3:80c1eba78f9b 143 {
legstar85 3:80c1eba78f9b 144 g_sw2_flag = 1; // set flag in ISR
legstar85 5:eebd36a47049 145 }
legstar85 5:eebd36a47049 146
legstar85 5:eebd36a47049 147 void menu_timer_isr()
legstar85 5:eebd36a47049 148 {
legstar85 5:eebd36a47049 149 g_menu_timer_flag = 1; // set flag in ISR
legstar85 5:eebd36a47049 150 }
legstar85 5:eebd36a47049 151
legstar85 5:eebd36a47049 152 void MainMenu()
legstar85 5:eebd36a47049 153 {
legstar85 5:eebd36a47049 154 while(1) {
legstar85 5:eebd36a47049 155 if (g_menu_timer_flag){
legstar85 5:eebd36a47049 156 g_menu_timer_flag = 0;
legstar85 5:eebd36a47049 157
legstar85 5:eebd36a47049 158 lcd.clear(); // clear buffer at start of every loop
legstar85 5:eebd36a47049 159 joystick.init(); // initialise joystick
legstar85 5:eebd36a47049 160
legstar85 5:eebd36a47049 161 lcd.printString("---- MENU ----",0,0); // can directly print strings at specified co-ordinates (must be less than 84 pixels to fit on display)
legstar85 5:eebd36a47049 162 lcd.printString("M1 - Monitor",0,1); //
legstar85 5:eebd36a47049 163 lcd.printString("M2 - One-off",0,2); //
legstar85 5:eebd36a47049 164 lcd.printString("About",0,3); //
legstar85 5:eebd36a47049 165 lcd.refresh(); //
legstar85 5:eebd36a47049 166
legstar85 5:eebd36a47049 167 switch (joystick.get_direction()) { // Call to check direction joystick is pointing
legstar85 5:eebd36a47049 168 printf("Direction = %i\n"); //
legstar85 5:eebd36a47049 169 case N: //
legstar85 5:eebd36a47049 170 option--; //
legstar85 5:eebd36a47049 171 break; //
legstar85 5:eebd36a47049 172 case S: //
legstar85 5:eebd36a47049 173 option++; //
legstar85 5:eebd36a47049 174 break; //
legstar85 5:eebd36a47049 175 }
legstar85 5:eebd36a47049 176 if (option < 0) { // If last/bottom menu item is selcted and user presses joystick down
legstar85 5:eebd36a47049 177 option = 2; // Selection circle to move to first/top menu option
legstar85 5:eebd36a47049 178 }
legstar85 5:eebd36a47049 179 if (option < 2) { // If first/top menu item is selcted and user presses joystick up
legstar85 5:eebd36a47049 180 option = 0; // Selection circle to move to last/bottom menu option
legstar85 5:eebd36a47049 181 }
legstar85 5:eebd36a47049 182
legstar85 5:eebd36a47049 183 if (option == 1) { //
legstar85 5:eebd36a47049 184 lcd.drawCircle (55,20,2,0); //
legstar85 5:eebd36a47049 185 }
legstar85 5:eebd36a47049 186 if (option == 2) { //
legstar85 5:eebd36a47049 187 lcd.drawCircle (35,35,2,0); //
legstar85 5:eebd36a47049 188 }
legstar85 5:eebd36a47049 189 if (option == 3) { //
legstar85 5:eebd36a47049 190 lcd.drawCircle (20,50,2,0); //
legstar85 5:eebd36a47049 191 }
legstar85 5:eebd36a47049 192
legstar85 5:eebd36a47049 193 }
legstar85 5:eebd36a47049 194
legstar85 5:eebd36a47049 195 void ConstantMonitoring()
legstar85 5:eebd36a47049 196 {
legstar85 5:eebd36a47049 197 while (1) {
legstar85 5:eebd36a47049 198
legstar85 5:eebd36a47049 199 lcd.normalMode(); // normal colour mode
legstar85 5:eebd36a47049 200 lcd.setBrightness(0.5); // put LED backlight on 50%
legstar85 5:eebd36a47049 201 lcd.clear(); // clear buffer at start of every loop
legstar85 5:eebd36a47049 202 lcd.refresh(); // need to refresh display after setting pixels or writing strings
legstar85 5:eebd36a47049 203
legstar85 5:eebd36a47049 204 float T = tmp102.get_temperature(); // read temperature and print to lcd
legstar85 5:eebd36a47049 205 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 206 if (length <= 14) // if string will fit on display (assuming printing at x=0)
legstar85 5:eebd36a47049 207 lcd.printString(buffer,0,2); // display on screen
legstar85 5:eebd36a47049 208 lcd.refresh(); // need to refresh display after setting pixels or writing strings
legstar85 5:eebd36a47049 209 wait(2.0);
legstar85 5:eebd36a47049 210
legstar85 5:eebd36a47049 211 if (g_ButtonA_flag) { // check if flag i.e. interrupt has occured
legstar85 5:eebd36a47049 212 g_ButtonA_flag = 0; // if it has, clear the flag
legstar85 5:eebd36a47049 213
legstar85 5:eebd36a47049 214 printf("Button A Press \n"); // send message over serial port - can observe in CoolTerm etc.
legstar85 5:eebd36a47049 215 LED01=0;
legstar85 5:eebd36a47049 216 wait(5.0);
legstar85 5:eebd36a47049 217 LED01=1;
legstar85 5:eebd36a47049 218 }
legstar85 5:eebd36a47049 219
legstar85 5:eebd36a47049 220 if (g_ButtonB_flag) { // check if flag i.e. interrupt has occured
legstar85 5:eebd36a47049 221 g_ButtonB_flag = 0; // if it has, clear the flag
legstar85 5:eebd36a47049 222
legstar85 5:eebd36a47049 223 printf("Button B Press \n"); // send message over serial port - can observe in CoolTerm etc.
legstar85 5:eebd36a47049 224 LED02=0;
legstar85 5:eebd36a47049 225 wait(5.0);
legstar85 5:eebd36a47049 226 LED02=1;
legstar85 5:eebd36a47049 227 }
legstar85 5:eebd36a47049 228 }
legstar85 5:eebd36a47049 229 }