Emmanuel Adolphus / Mbed 2 deprecated Car_Parker

Simple Car parking device

Dependencies:   N5110 PinDetect PowerControl SRF02 mbed

main.cpp@0:969893638914, 2015-05-11 (annotated)

Committer:
el13eag
Date:
Mon May 11 18:33:03 2015 +0000
Revision:
0:969893638914
revision 1.0

Who changed what in which revision?

UserRevisionLine numberNew contents of line
el13eag 0:969893638914 1 /**
el13eag 0:969893638914 2 @file main.cpp
el13eag 0:969893638914 3 @brief ELEC2645 Embedded Systems Project
el13eag 0:969893638914 4 @brief Ultrasonic Distance sensor/Car Parker
el13eag 0:969893638914 5 @brief Designed to help car owners park thier cars more effectively
el13eag 0:969893638914 6 it basically uses burst of sound waves to measure the distance of objects
el13eag 0:969893638914 7 from the device
el13eag 0:969893638914 8 @brief Revision 1.0
el13eag 0:969893638914 9 @author Adolphus George Emmanuel
el13eag 0:969893638914 10 @date May 2015
el13eag 0:969893638914 11 */
el13eag 0:969893638914 12
el13eag 0:969893638914 13 #ifndef MAIN_H
el13eag 0:969893638914 14 #define MAIN_H
el13eag 0:969893638914 15
el13eag 0:969893638914 16 #include "mbed.h"
el13eag 0:969893638914 17 #include "N5110.h"
el13eag 0:969893638914 18 #include "SRF02.h"
el13eag 0:969893638914 19 #include "PowerControl/PowerControl.h"
el13eag 0:969893638914 20 #include "PowerControl/EthernetPowerControl.h"
el13eag 0:969893638914 21
el13eag 0:969893638914 22 /**
el13eag 0:969893638914 23 @see URL: http://mbed.org/users/AjK/libraries/PinDetect/lkyxpw for the PinDetect
el13eag 0:969893638914 24 */
el13eag 0:969893638914 25 #include "PinDetect.h"
el13eag 0:969893638914 26
el13eag 0:969893638914 27
el13eag 0:969893638914 28 #define USR_POWERDOWN (0x104)
el13eag 0:969893638914 29
el13eag 0:969893638914 30 /**
el13eag 0:969893638914 31 @namespace Nokia N5110 LCD, LEDs, Temperatuure Sensor, Distnce Sensor, Buzzer, Button
el13eag 0:969893638914 32 @brief GPIOs for LCD, LEDs, Temperature and Distance sensor, Printing of serial bus,Button debounce, LDR, buzzer, etc.
el13eag 0:969893638914 33 */
el13eag 0:969893638914 34 N5110 lcd(p7,p8,p9,p10,p11,p13,p26);
el13eag 0:969893638914 35 BusOut leds(LED1, LED2, LED3, LED4); // Creat a bus out for on board LEDs
el13eag 0:969893638914 36 I2C tmp102(p28,p27); // Creat a new I2C instance for temperature sensor and initialise
el13eag 0:969893638914 37 SRF02 srf(p28, p27); // Creat a new I2C intsance for Distance sensor and initialise
el13eag 0:969893638914 38 Serial serial(USBTX,USBRX); // for serial output through USB
el13eag 0:969893638914 39 PinDetect pin (p15); // an interupt button
el13eag 0:969893638914 40 AnalogIn ain(p16); // analogue in for the LDR used to control the sleep mode
el13eag 0:969893638914 41 AnalogIn ain2(p20);
el13eag 0:969893638914 42 InterruptIn button(p15);
el13eag 0:969893638914 43 Timeout timer;
el13eag 0:969893638914 44 PwmOut buzzer(p21); // buzzer output
el13eag 0:969893638914 45 //////////////////////////////////////////////
el13eag 0:969893638914 46 PwmOut led(p26); // pwm to control LCD backlight
el13eag 0:969893638914 47 DigitalOut sce(p8); // for LCD SCe
el13eag 0:969893638914 48 SPI spi(p11,NC, p13); //create a new SPI intance and initialise
el13eag 0:969893638914 49 DigitalOut pwr(p7); // for LCD power control
el13eag 0:969893638914 50 DigitalOut dc(p10); // for LCD Dc input
el13eag 0:969893638914 51 PwmOut led2(p24); // Pwm for LED alert
el13eag 0:969893638914 52
el13eag 0:969893638914 53 Ticker timer2; // creat ticker function
el13eag 0:969893638914 54 Ticker timer3;
el13eag 0:969893638914 55 //////////////////////////////////////////////////////
el13eag 0:969893638914 56 Timeout callUpTime;
el13eag 0:969893638914 57
el13eag 0:969893638914 58 /**
el13eag 0:969893638914 59 Creates a flag to be used by the button
el13eag 0:969893638914 60 @returns an integer
el13eag 0:969893638914 61 */
el13eag 0:969893638914 62 int buttonFlag= 0;
el13eag 0:969893638914 63 void buttonPressed()
el13eag 0:969893638914 64 {
el13eag 0:969893638914 65 buttonFlag = 1;
el13eag 0:969893638914 66 }
el13eag 0:969893638914 67
el13eag 0:969893638914 68 /**
el13eag 0:969893638914 69 Defines the frequency of the pwm and the beat for sound and LED flashing for alerts
el13eag 0:969893638914 70 @param frequncy - float for frequency
el13eag 0:969893638914 71 @param beat - to set the tempo
el13eag 0:969893638914 72 @see https://developer.mbed.org/media/uploads/phill/mbed_course_notes_-_pulse_width_modulation.pdf
el13eag 0:969893638914 73 */
el13eag 0:969893638914 74 float frequency[]= {659,554}; //frequency array for both sound and LED (Taken from the mbed website)
el13eag 0:969893638914 75 float beat[]= {1,1}; //beat array for both sound and LED
el13eag 0:969893638914 76 //////////////////////////////////////////////////////
el13eag 0:969893638914 77 /**
el13eag 0:969893638914 78 Defines the x,y pixels for the lcd display
el13eag 0:969893638914 79 */
el13eag 0:969893638914 80 int next[84][48];
el13eag 0:969893638914 81 int nx=84;
el13eag 0:969893638914 82 int ny =48;
el13eag 0:969893638914 83 int i=0;
el13eag 0:969893638914 84 int j=0;
el13eag 0:969893638914 85
el13eag 0:969893638914 86 /**
el13eag 0:969893638914 87 Gets the distance measurement from the sensor
el13eag 0:969893638914 88 */
el13eag 0:969893638914 89 int distance = srf.getDistanceCm();
el13eag 0:969893638914 90 //////////////////////////////////////////////////////
el13eag 0:969893638914 91
el13eag 0:969893638914 92 void error(); // Error laert function for the range finer
el13eag 0:969893638914 93 void setBrightness(float brightness); // Set Brightness function
el13eag 0:969893638914 94 void clearRAM(); // Clear RAM function
el13eag 0:969893638914 95 void setXYAddress(int x, int y); // Set XY Address function
el13eag 0:969893638914 96 void resting(); // Function to get distance and display and to geive alerts and also place the car image according to the distance
el13eag 0:969893638914 97 void turnOfDisplay(); // To turn of display
el13eag 0:969893638914 98 void turnOnDisplay(); // To turn on display
el13eag 0:969893638914 99 void sendCommand(unsigned char command);
el13eag 0:969893638914 100 void buzzerAlert(); // Buzzer alert function
el13eag 0:969893638914 101 void initialise(); // Function to initialise LCd and display welcome messag
el13eag 0:969893638914 102 void initSPI(); // To initialse SPI
el13eag 0:969893638914 103 void flipped();
el13eag 0:969893638914 104 void flippedStop();
el13eag 0:969893638914 105 void setPixel();
el13eag 0:969893638914 106 void controlBrightness();
el13eag 0:969893638914 107 /////////////////////////////////////
el13eag 0:969893638914 108
el13eag 0:969893638914 109 void initTMP102(); // To initialise Temperature
el13eag 0:969893638914 110 void stopper(); // To get and dispaly temprature
el13eag 0:969893638914 111 float vol; // float voltage for the potentiometer
el13eag 0:969893638914 112 ////////////////////////////////
el13eag 0:969893638914 113
el13eag 0:969893638914 114 void firstImage(); // To draw the vertical brick wall
el13eag 0:969893638914 115 ////////////////////////
el13eag 0:969893638914 116 // Debounce for button pressed to call up the time and Brightness with battery life infromation
el13eag 0:969893638914 117 void p15Pressed(void);
el13eag 0:969893638914 118 void p15Released(void);
el13eag 0:969893638914 119 ///////////////////////////////////////
el13eag 0:969893638914 120
el13eag 0:969893638914 121 void serialISR(); // ISR that is called when serial data is received
el13eag 0:969893638914 122 void setTime(); // function to set the UNIX time
el13eag 0:969893638914 123 int setTimeFlag = 0; // flag for ISR
el13eag 0:969893638914 124 char rxString[16]; // buffer to store received string
el13eag 0:969893638914 125 char buffer[30]; // creat a charracter
el13eag 0:969893638914 126 void timerInterrupt();
el13eag 0:969893638914 127 ///////////////////////////////
el13eag 0:969893638914 128
el13eag 0:969893638914 129 void setter(int, int, int, int, int, int, int, int, int,int, int, int, int,int, int, int); // Intergers to store the position of the car images
el13eag 0:969893638914 130 void movingCar(int);
el13eag 0:969893638914 131 void nextGeneration(); // TO clear and set the pixels according to the next set of conditions
el13eag 0:969893638914 132 void drawLine(); //For horizontal line
el13eag 0:969893638914 133 ////////////////////////////////////////////////////////////
el13eag 0:969893638914 134 float brightness; // float for brightness values
el13eag 0:969893638914 135 void battery(); // to indicate battery life
el13eag 0:969893638914 136 //#Temperature Declearation
el13eag 0:969893638914 137 void error();
el13eag 0:969893638914 138 float getTemperature(); // float to get temperature
el13eag 0:969893638914 139 void ledAlert(int);
el13eag 0:969893638914 140
el13eag 0:969893638914 141 /**
el13eag 0:969893638914 142 @brief Defines the temprature sensors Registers and Address
el13eag 0:969893638914 143 @Tag for Temperature sensor
el13eag 0:969893638914 144 @address for ADD0 connected
el13eag 0:969893638914 145 */
el13eag 0:969893638914 146 #define TMP102_ADD 0x48
el13eag 0:969893638914 147 #define TMP102_R_ADD 0x91
el13eag 0:969893638914 148 #define TMP102_W_ADD 0x90
el13eag 0:969893638914 149
el13eag 0:969893638914 150 // Register address for temperature sensor
el13eag 0:969893638914 151 #define TEMP_REG 0x00
el13eag 0:969893638914 152 #define CONFIG_REG 0x01
el13eag 0:969893638914 153 #define THIGH_REG 0x02
el13eag 0:969893638914 154 #define TLOW_REG 0x03
el13eag 0:969893638914 155 ////////////////////////////////////////////////////////////////
el13eag 0:969893638914 156 /**
el13eag 0:969893638914 157 @brief to power Down the Ethernet
el13eag 0:969893638914 158 */
el13eag 0:969893638914 159 int semihost_powerdown()
el13eag 0:969893638914 160 {
el13eag 0:969893638914 161 uint32_t arg;
el13eag 0:969893638914 162 return __semihost(USR_POWERDOWN, &arg);
el13eag 0:969893638914 163 }
el13eag 0:969893638914 164 #endif
el13eag 0:969893638914 165
el13eag 0:969893638914 166 int main()
el13eag 0:969893638914 167 {
el13eag 0:969893638914 168 // To intialise lcd and dispaly welcome messages.
el13eag 0:969893638914 169 initialise();
el13eag 0:969893638914 170 //////////////////////////////////
el13eag 0:969893638914 171 // For getting time and date and Temperature
el13eag 0:969893638914 172 initTMP102();
el13eag 0:969893638914 173 serial.attach(&serialISR); // attach serial ISR
el13eag 0:969893638914 174 //set_time(1431109980); // initialise time to what what is inputed
el13eag 0:969893638914 175 ///////////////////////////////////////
el13eag 0:969893638914 176
el13eag 0:969893638914 177 // to define button thats calls up the time and date it works with the button using debounce
el13eag 0:969893638914 178 pin.mode(PullDown); // To pull down the button to zero
el13eag 0:969893638914 179 pin.attach_asserted(&p15Pressed);
el13eag 0:969893638914 180 pin.attach_deasserted(&p15Released);
el13eag 0:969893638914 181 pin.setSampleFrequency();
el13eag 0:969893638914 182
el13eag 0:969893638914 183 /////////////////////////////////////
el13eag 0:969893638914 184 // To power down USB and Ethernet
el13eag 0:969893638914 185 int result = semihost_powerdown();
el13eag 0:969893638914 186 PHY_PowerDown();
el13eag 0:969893638914 187
el13eag 0:969893638914 188 button.rise(&buttonPressed); // For button
el13eag 0:969893638914 189
el13eag 0:969893638914 190 while(1) {
el13eag 0:969893638914 191 // resting();
el13eag 0:969893638914 192
el13eag 0:969893638914 193 nextGeneration();
el13eag 0:969893638914 194 float voltage = 5.0 * ain.read(); // to declear and initialise the LDR
el13eag 0:969893638914 195 if(voltage <=2.50) { // If there is light
el13eag 0:969893638914 196 resting();
el13eag 0:969893638914 197 setBrightness( brightness);
el13eag 0:969893638914 198
el13eag 0:969893638914 199
el13eag 0:969893638914 200 } else if(voltage >= 2.55) { // If the garrage is dark
el13eag 0:969893638914 201 turnOfDisplay();
el13eag 0:969893638914 202 led2 = 0;
el13eag 0:969893638914 203 buzzer = 0;
el13eag 0:969893638914 204 timer2.detach();
el13eag 0:969893638914 205
el13eag 0:969893638914 206 }
el13eag 0:969893638914 207 Sleep();
el13eag 0:969893638914 208 }
el13eag 0:969893638914 209 }
el13eag 0:969893638914 210
el13eag 0:969893638914 211 /**
el13eag 0:969893638914 212 @brief This function is used to set the X-Y address in RAM for futire data write to the LCD
el13eag 0:969893638914 213 */
el13eag 0:969893638914 214 void setXYAddress(int x, int y)
el13eag 0:969893638914 215 {
el13eag 0:969893638914 216
el13eag 0:969893638914 217 if (x > 83);
el13eag 0:969893638914 218 x = 83;
el13eag 0:969893638914 219 if (y > 5);
el13eag 0:969893638914 220 y = 5;
el13eag 0:969893638914 221 if(x < 0);
el13eag 0:969893638914 222 x =0;
el13eag 0:969893638914 223 if (y < 0);
el13eag 0:969893638914 224 y=0;
el13eag 0:969893638914 225
el13eag 0:969893638914 226 }
el13eag 0:969893638914 227
el13eag 0:969893638914 228 /**
el13eag 0:969893638914 229 @brief This functions both the setPixel and drawLine function draws the horizontal line which acts as the floor or main road
el13eag 0:969893638914 230 which the car is moving on
el13eag 0:969893638914 231 */
el13eag 0:969893638914 232 void setPixel()
el13eag 0:969893638914 233 {
el13eag 0:969893638914 234 for (i = 0; i < WIDTH; i++) {
el13eag 0:969893638914 235 lcd.setPixel(i, 24);
el13eag 0:969893638914 236 }
el13eag 0:969893638914 237 lcd.refresh();
el13eag 0:969893638914 238 }
el13eag 0:969893638914 239
el13eag 0:969893638914 240 // Function to draw horizontal line
el13eag 0:969893638914 241 void drawLine()
el13eag 0:969893638914 242 {
el13eag 0:969893638914 243 for (i = 0; i < WIDTH; i++) {
el13eag 0:969893638914 244 lcd.setPixel(i, 25);
el13eag 0:969893638914 245 }
el13eag 0:969893638914 246 lcd.refresh();
el13eag 0:969893638914 247 }
el13eag 0:969893638914 248
el13eag 0:969893638914 249 /**
el13eag 0:969893638914 250 @brief This turns of the LCD completely
el13eag 0:969893638914 251 */
el13eag 0:969893638914 252 void turnOfDisplay()
el13eag 0:969893638914 253 {
el13eag 0:969893638914 254 setBrightness(0.0); // turn backlight off
el13eag 0:969893638914 255 clearRAM(); // clear RAM to ensure specified current consumption
el13eag 0:969893638914 256
el13eag 0:969893638914 257 }
el13eag 0:969893638914 258
el13eag 0:969893638914 259 /**
el13eag 0:969893638914 260 @brief By turning the potentiometer, this function allows you to control the LCD brightneess
el13eag 0:969893638914 261 the potentiometer uses the 3.3V output from the mbed as its input and uses an analouge in to feedback to the mbed
el13eag 0:969893638914 262 but it must be noted that the signal or voltage the mbed recieves is between 0V to 1V it can not read in anything above this from the potenteiometer
el13eag 0:969893638914 263 */
el13eag 0:969893638914 264 void setBrightness(float brightness)
el13eag 0:969893638914 265 {
el13eag 0:969893638914 266 float vol = 3.3*ain2;
el13eag 0:969893638914 267 float voltage = 5.0*ain;
el13eag 0:969893638914 268 if ((vol >= 0.0) && (vol < 0.3)) {
el13eag 0:969893638914 269 brightness = 0.0;
el13eag 0:969893638914 270 }
el13eag 0:969893638914 271 if ((vol >= 0.3) && (vol <0.6)) {
el13eag 0:969893638914 272 brightness = 0.1;
el13eag 0:969893638914 273 }
el13eag 0:969893638914 274 if ((vol >= 0.6) && (vol < 0.9)) {
el13eag 0:969893638914 275 brightness = 0.2;
el13eag 0:969893638914 276 }
el13eag 0:969893638914 277 if ((vol >= 0.9) && (vol <1.2)) {
el13eag 0:969893638914 278 brightness = 0.3;
el13eag 0:969893638914 279 }
el13eag 0:969893638914 280 if ((vol >= 1.2) && (vol <1.5)) {
el13eag 0:969893638914 281 brightness = 0.4;
el13eag 0:969893638914 282 }
el13eag 0:969893638914 283
el13eag 0:969893638914 284 if ((vol >= 1.5) && (vol < 1.8)) {
el13eag 0:969893638914 285 brightness = 0.5;
el13eag 0:969893638914 286 }
el13eag 0:969893638914 287 if ((vol >= 1.8) && (vol <2.1)) {
el13eag 0:969893638914 288 brightness = 0.6;
el13eag 0:969893638914 289 }
el13eag 0:969893638914 290 if ((vol >= 2.1) && (vol < 2.4)) {
el13eag 0:969893638914 291 brightness = 0.7;
el13eag 0:969893638914 292 }
el13eag 0:969893638914 293 if ((vol >= 2.4)&& (vol < 2.7)) {
el13eag 0:969893638914 294 brightness = 0.8;
el13eag 0:969893638914 295 }
el13eag 0:969893638914 296 if ((vol >= 2.7)&& (vol < 3)) {
el13eag 0:969893638914 297 brightness = 0.9;
el13eag 0:969893638914 298 }
el13eag 0:969893638914 299 if ((vol >= 3.0)&& (vol <=3.3)) {
el13eag 0:969893638914 300 brightness = 1.0;
el13eag 0:969893638914 301 }
el13eag 0:969893638914 302 if ((voltage >= 2.55)&& (vol == vol)) {
el13eag 0:969893638914 303 brightness = 0.0;
el13eag 0:969893638914 304 }
el13eag 0:969893638914 305 led.write(brightness);
el13eag 0:969893638914 306
el13eag 0:969893638914 307 }
el13eag 0:969893638914 308
el13eag 0:969893638914 309 /**
el13eag 0:969893638914 310 @brief This function writes a 0 to the 504 bytes to clear the RAM in other to reduce the current waste
el13eag 0:969893638914 311 */
el13eag 0:969893638914 312 void clearRAM()
el13eag 0:969893638914 313 {
el13eag 0:969893638914 314 int i;
el13eag 0:969893638914 315 sce.write(0);
el13eag 0:969893638914 316 for(i = 0; i <504; i++) {
el13eag 0:969893638914 317 spi.write(0x00);
el13eag 0:969893638914 318 }
el13eag 0:969893638914 319 sce.write(1);
el13eag 0:969893638914 320 }
el13eag 0:969893638914 321
el13eag 0:969893638914 322 /**
el13eag 0:969893638914 323 @brief This function "resting" contians codes which gets the distance from the sensor and displays it on the LCD
el13eag 0:969893638914 324 Also still in this function other functions like the getTempearature are called as they all are display at same time on the screen
el13eag 0:969893638914 325 And all the alerts both sound and virtual associated with the car parking aspect of the device are implement here
el13eag 0:969893638914 326
el13eag 0:969893638914 327 for PWM out code for buzzer sound,
el13eag 0:969893638914 328 @see https://developer.mbed.org/media/uploads/phill/mbed_course_notes_-_pulse_width_modulation.pdf
el13eag 0:969893638914 329 */
el13eag 0:969893638914 330 void resting()
el13eag 0:969893638914 331 {
el13eag 0:969893638914 332 drawLine();
el13eag 0:969893638914 333 firstImage();
el13eag 0:969893638914 334 led2 = 0;
el13eag 0:969893638914 335 buzzer =0;
el13eag 0:969893638914 336 stopper();
el13eag 0:969893638914 337 /////////////////////////////////////////
el13eag 0:969893638914 338 //Get Distance from sensor dispaly and depending on the conditions, get the appropriate alert and information
el13eag 0:969893638914 339 // This is where the values for the x and y cordinates to draw the car is also inputted and also the alert the triggers the buzzer and lights up the LED
el13eag 0:969893638914 340 int distance = srf.getDistanceCm(); // get distance in cm and save in distance
el13eag 0:969893638914 341
el13eag 0:969893638914 342 char buffer[14];
el13eag 0:969893638914 343 int length = sprintf(buffer, "%2d cm",distance); // To define the length of the charracter which must not be more than 14 charracters
el13eag 0:969893638914 344
el13eag 0:969893638914 345 if (length <= 14) {
el13eag 0:969893638914 346 if (distance > 249) { // Distance above 249cm which is the max range the sensor can detect
el13eag 0:969893638914 347 lcd.printString("Out of Range", 4, 1);
el13eag 0:969893638914 348 }
el13eag 0:969893638914 349 if ((distance >= 232) && (distance <=249)) {
el13eag 0:969893638914 350 lcd.printString(buffer, 25,0);
el13eag 0:969893638914 351 setter(68, 78, 65, 81, 18, 21, 21, 23, 68, 70,76 ,78, 23 ,25, 23, 25); // These are the values that draws the car
el13eag 0:969893638914 352 lcd.printString("Very safe", 15, 1);
el13eag 0:969893638914 353 }
el13eag 0:969893638914 354 if ((distance >= 215) && (distance <= 232)) {
el13eag 0:969893638914 355 lcd.printString(buffer, 25,0);
el13eag 0:969893638914 356 setter(63, 73, 60, 76, 18, 21, 21, 23, 63, 65, 71 ,73, 23 ,25, 23, 25);
el13eag 0:969893638914 357 lcd.printString("Very Safe", 15, 1);
el13eag 0:969893638914 358 }
el13eag 0:969893638914 359 if((distance >= 198) && (distance <= 215)) {
el13eag 0:969893638914 360 lcd.printString(buffer, 25,0);
el13eag 0:969893638914 361 setter(58, 68, 55, 71, 18, 21, 21, 23, 58, 60, 66 ,68, 23 ,25, 23, 25);
el13eag 0:969893638914 362 lcd.printString("Very Safe", 15, 1);
el13eag 0:969893638914 363 }
el13eag 0:969893638914 364
el13eag 0:969893638914 365
el13eag 0:969893638914 366 if ((distance >= 181) && (distance <=198)) {
el13eag 0:969893638914 367 lcd.printString(buffer, 25,0);
el13eag 0:969893638914 368 setter(53, 63, 50, 66, 18, 21, 21, 23, 53, 55, 61 ,63,23 ,25, 23, 25);
el13eag 0:969893638914 369 lcd.printString("Very Safe", 15, 1);
el13eag 0:969893638914 370 }
el13eag 0:969893638914 371 if((distance >= 164) && (distance <=181)) {
el13eag 0:969893638914 372
el13eag 0:969893638914 373 lcd.printString(buffer, 25,0);
el13eag 0:969893638914 374 setter(48, 58, 45, 61, 18, 21, 21, 23, 48, 50, 56 ,58, 23 ,25, 23, 25);
el13eag 0:969893638914 375 lcd.printString("Safe Distance", 4, 1);
el13eag 0:969893638914 376
el13eag 0:969893638914 377 }
el13eag 0:969893638914 378
el13eag 0:969893638914 379 if ((distance >= 150) && (distance <= 164)) {
el13eag 0:969893638914 380 lcd.printString(buffer, 25,0);
el13eag 0:969893638914 381 setter(43, 53, 40, 56, 18, 21, 21, 23, 43, 45, 51 ,53, 23 ,25, 23, 25);
el13eag 0:969893638914 382 lcd.printString("Safe Distance", 4, 1);
el13eag 0:969893638914 383
el13eag 0:969893638914 384 }
el13eag 0:969893638914 385 if((distance >= 133) && (distance <=150)) {
el13eag 0:969893638914 386 lcd.printString(buffer, 25,0);
el13eag 0:969893638914 387 setter(38, 48, 35, 51, 18, 21, 21, 23, 38, 40, 46 ,48,23 ,25, 23, 25);
el13eag 0:969893638914 388 lcd.printString("Safe Distance", 4, 1);
el13eag 0:969893638914 389
el13eag 0:969893638914 390 }
el13eag 0:969893638914 391 if((distance >= 116) && (distance <= 133)) {
el13eag 0:969893638914 392 lcd.printString(buffer, 25,0);
el13eag 0:969893638914 393 setter(33, 43, 30, 46, 18, 21, 21, 23, 33, 35, 41 ,43, 23 ,25, 23, 25);
el13eag 0:969893638914 394 lcd.printString("Safe Distance", 4, 1);
el13eag 0:969893638914 395
el13eag 0:969893638914 396 }
el13eag 0:969893638914 397 if((distance >= 99) && (distance <=116)) {
el13eag 0:969893638914 398 lcd.printString(buffer, 25,0);
el13eag 0:969893638914 399 setter(28, 38, 25, 41, 18, 21, 21, 23, 28, 30, 36 ,38, 23 ,25, 23, 25);
el13eag 0:969893638914 400 lcd.printString("Safe Distance", 4, 1);
el13eag 0:969893638914 401
el13eag 0:969893638914 402 }
el13eag 0:969893638914 403 if((distance >= 82) && (distance <=99)) {
el13eag 0:969893638914 404 lcd.printString(buffer, 25,0);
el13eag 0:969893638914 405 setter(23, 33, 20, 36, 18, 21, 21, 23, 23, 25, 31 ,33, 23 ,25, 23, 25);
el13eag 0:969893638914 406 lcd.printString("Getting Close", 4, 1);
el13eag 0:969893638914 407 for (int i=0; i<=1; i++) {
el13eag 0:969893638914 408 buzzer.period(1/(frequency[i])); // set PWM period
el13eag 0:969893638914 409 buzzer=0.9; // set duty cycle
el13eag 0:969893638914 410 wait(0.5*beat[i]); // hold for beat period
el13eag 0:969893638914 411 led2 = 1;
el13eag 0:969893638914 412 }
el13eag 0:969893638914 413 }
el13eag 0:969893638914 414 if((distance >= 65) && (distance <= 82)) {
el13eag 0:969893638914 415 lcd.printString(buffer, 25,0);
el13eag 0:969893638914 416 setter(18, 28, 15, 31, 18, 21, 21, 23, 18, 20, 26 ,28,23 ,25, 23, 25);
el13eag 0:969893638914 417 lcd.printString("Getting Close", 4, 1);
el13eag 0:969893638914 418 for (int i=0; i<=1; i++) {
el13eag 0:969893638914 419 buzzer.period(1/(frequency[i])); // set PWM period
el13eag 0:969893638914 420 buzzer=0.9; // set duty cycle
el13eag 0:969893638914 421 wait(0.5*beat[i]); // hold for beat period
el13eag 0:969893638914 422 led2 = 1;
el13eag 0:969893638914 423 }
el13eag 0:969893638914 424 }
el13eag 0:969893638914 425 if((distance >= 48) && (distance<=65)) {
el13eag 0:969893638914 426 lcd.printString(buffer, 25,0);
el13eag 0:969893638914 427 setter(13, 23, 10, 26,18, 21, 21, 23, 13, 15, 21 ,23,23 ,25, 23, 25);
el13eag 0:969893638914 428 lcd.printString("Too Close", 15, 1);
el13eag 0:969893638914 429 for (int i=0; i<=1; i++) {
el13eag 0:969893638914 430 buzzer.period(1/(frequency[i])); // set PWM period
el13eag 0:969893638914 431 buzzer=0.9; // set duty cycle
el13eag 0:969893638914 432 wait(0.1*beat[i]); // hold for beat period
el13eag 0:969893638914 433 led2 = 1;
el13eag 0:969893638914 434 }
el13eag 0:969893638914 435 }
el13eag 0:969893638914 436 if ((distance >= 31) && (distance <=48)) {
el13eag 0:969893638914 437 lcd.printString(buffer, 25,0);
el13eag 0:969893638914 438 setter(8, 18, 5, 21, 18, 21, 21, 23, 8, 10, 16 ,18,23 ,25, 23, 25);
el13eag 0:969893638914 439 lcd.printString("Too Close", 15, 1);
el13eag 0:969893638914 440 for (int i=0; i<=1; i++) {
el13eag 0:969893638914 441 buzzer.period(1/(frequency[i])); // set PWM period
el13eag 0:969893638914 442 buzzer=0.9; // set duty cycle
el13eag 0:969893638914 443 wait(0.1*beat[i]); // hold for beat period
el13eag 0:969893638914 444 led2 = 1;
el13eag 0:969893638914 445 }
el13eag 0:969893638914 446
el13eag 0:969893638914 447 }
el13eag 0:969893638914 448 if (distance <=31) { // though the sensor can detect up to 13cm but it was set to 31cm so as to always give drivers safe distance from other objects
el13eag 0:969893638914 449 lcd.printString(buffer, 25,0);
el13eag 0:969893638914 450 setter(5, 15, 2, 18, 18, 21, 21, 23, 5, 7, 13 ,15, 23 ,25, 23, 25);
el13eag 0:969893638914 451 lcd.printString("Limit Reached", 4, 1);
el13eag 0:969893638914 452 for (int i=0; i<=1; i++) {
el13eag 0:969893638914 453 buzzer.period(1/(frequency[i])); // set PWM period
el13eag 0:969893638914 454 buzzer=0.09; // set duty cycle
el13eag 0:969893638914 455 wait(0.01*beat[i]); // hold for beat period
el13eag 0:969893638914 456 led2 = 1;
el13eag 0:969893638914 457
el13eag 0:969893638914 458 }
el13eag 0:969893638914 459 }
el13eag 0:969893638914 460 }
el13eag 0:969893638914 461 wait (0.5); // A little delay though not really needed for the distance but was added to help to be more accurate. Ticker timer would be better off
el13eag 0:969893638914 462 // but at the time of this project was not really working one of the future aims is to find a way to make it work
el13eag 0:969893638914 463
el13eag 0:969893638914 464 lcd.refresh();
el13eag 0:969893638914 465
el13eag 0:969893638914 466 }
el13eag 0:969893638914 467 /**
el13eag 0:969893638914 468 @brief This function is used to draw the vertical brick wall which show the limit the car sensor can car and to alert the driver that he or she is getting close to an object
el13eag 0:969893638914 469 */
el13eag 0:969893638914 470 void firstImage()
el13eag 0:969893638914 471 {
el13eag 0:969893638914 472 for (j = 0; j < 26; j++) {
el13eag 0:969893638914 473 lcd.setPixel(0, j);
el13eag 0:969893638914 474 }
el13eag 0:969893638914 475 for (j = 0; j < 26; j++) {
el13eag 0:969893638914 476 lcd.setPixel(1, j);
el13eag 0:969893638914 477 }
el13eag 0:969893638914 478 lcd.refresh();
el13eag 0:969893638914 479
el13eag 0:969893638914 480
el13eag 0:969893638914 481 }
el13eag 0:969893638914 482
el13eag 0:969893638914 483 /**
el13eag 0:969893638914 484 @brief This is declears variables which are later used to draw the moving car depending on the values of the x and y cordinates inputted
el13eag 0:969893638914 485 */
el13eag 0:969893638914 486 void setter(int xVert, int xHor, int xVert2, int xHor2, int yVert, int yHor, int yVert2, int yHor2, int xVert3, int xHor3, int xVert4, int xHor4, int yVert3, int yHor3, int yVert4, int yHor4)
el13eag 0:969893638914 487 {
el13eag 0:969893638914 488 int i,j;
el13eag 0:969893638914 489
el13eag 0:969893638914 490 // Take the given values and draw the car
el13eag 0:969893638914 491 for (i = xVert; i < xHor; i++) {
el13eag 0:969893638914 492 for (j = yVert; j < yHor; j++) {
el13eag 0:969893638914 493
el13eag 0:969893638914 494 lcd.setPixel(i, j);
el13eag 0:969893638914 495 }
el13eag 0:969893638914 496 }
el13eag 0:969893638914 497 for (i = xVert2; i < xHor2; i++) {
el13eag 0:969893638914 498 for (j = yVert2; j < yHor2; j++) {
el13eag 0:969893638914 499 lcd.setPixel(i, j);
el13eag 0:969893638914 500
el13eag 0:969893638914 501 }
el13eag 0:969893638914 502 }
el13eag 0:969893638914 503 for (i = xVert3; i < xHor3; i++) {
el13eag 0:969893638914 504 for (j = yVert3; j < yHor3; j++) {
el13eag 0:969893638914 505
el13eag 0:969893638914 506 lcd.setPixel(i, j);
el13eag 0:969893638914 507 }
el13eag 0:969893638914 508 }
el13eag 0:969893638914 509 for (i = xVert4; i < xHor4; i++) {
el13eag 0:969893638914 510 for (j = yVert4; j < yHor4; j++) {
el13eag 0:969893638914 511 lcd.setPixel(i, j);
el13eag 0:969893638914 512
el13eag 0:969893638914 513 }
el13eag 0:969893638914 514 lcd.refresh();
el13eag 0:969893638914 515 }
el13eag 0:969893638914 516
el13eag 0:969893638914 517
el13eag 0:969893638914 518
el13eag 0:969893638914 519 lcd.refresh();
el13eag 0:969893638914 520 }
el13eag 0:969893638914 521
el13eag 0:969893638914 522
el13eag 0:969893638914 523
el13eag 0:969893638914 524 void nextGeneration() // Function for generting the next set of pixels based on the conditions
el13eag 0:969893638914 525 {
el13eag 0:969893638914 526 int nx =84;
el13eag 0:969893638914 527 int ny =48;
el13eag 0:969893638914 528 for (int i=0; i<nx; i++) {
el13eag 0:969893638914 529 for (int j=0; j<ny; j++) {
el13eag 0:969893638914 530 if (next[i][j]==1) {
el13eag 0:969893638914 531 lcd.setPixel(i,j);
el13eag 0:969893638914 532 } else if(next[i][j]==0) {
el13eag 0:969893638914 533 lcd.clearPixel(i,j);
el13eag 0:969893638914 534 }
el13eag 0:969893638914 535 }
el13eag 0:969893638914 536 }
el13eag 0:969893638914 537 lcd.refresh();
el13eag 0:969893638914 538 }
el13eag 0:969893638914 539
el13eag 0:969893638914 540 /**
el13eag 0:969893638914 541 @brief Here the LCD initialisation function is called and the welcome messages and also authors details are
el13eag 0:969893638914 542 implmemet which runs only once whenever the device is powered on
el13eag 0:969893638914 543 */
el13eag 0:969893638914 544 void initialise()
el13eag 0:969893638914 545 {
el13eag 0:969893638914 546 lcd.init(); // initialise lcd
el13eag 0:969893638914 547 initTMP102();
el13eag 0:969893638914 548 wait(1.0); // delay
el13eag 0:969893638914 549 lcd.printString("Welcome",20,3); // welcome screen
el13eag 0:969893638914 550 wait(2.0); // dealy
el13eag 0:969893638914 551 lcd.clear();
el13eag 0:969893638914 552 lcd.printString("Adolphus G. E.",1,1); // welcome screen
el13eag 0:969893638914 553 wait(0.5); // dealy
el13eag 0:969893638914 554
el13eag 0:969893638914 555 lcd.printString("SID: 200183574",1,2); // welcome screen
el13eag 0:969893638914 556 wait(0.5); // dealy
el13eag 0:969893638914 557 lcd.printString("ELEC2645",1,4); // welcome screen
el13eag 0:969893638914 558 wait(2.0); // dealy
el13eag 0:969893638914 559 lcd.clear(); // clear welcome screen
el13eag 0:969893638914 560 setXYAddress(0,0); // set lcd address
el13eag 0:969893638914 561 lcd.refresh(); // refresh
el13eag 0:969893638914 562
el13eag 0:969893638914 563 }
el13eag 0:969893638914 564
el13eag 0:969893638914 565 /**
el13eag 0:969893638914 566 @brief Functions to get and display the time
el13eag 0:969893638914 567 */
el13eag 0:969893638914 568 void tempTime()
el13eag 0:969893638914 569 {
el13eag 0:969893638914 570
el13eag 0:969893638914 571 time_t seconds = time(NULL);
el13eag 0:969893638914 572 strftime(buffer,32,"%I:%M %p",localtime(&seconds));
el13eag 0:969893638914 573 int length = sprintf(buffer,"%s", buffer);
el13eag 0:969893638914 574 if (length <= 14) {
el13eag 0:969893638914 575 lcd.printString(buffer,0,0); // To display time
el13eag 0:969893638914 576 timerInterrupt(); // To dispaly Date
el13eag 0:969893638914 577 controlBrightness();
el13eag 0:969893638914 578 battery();
el13eag 0:969893638914 579
el13eag 0:969893638914 580 if (setTimeFlag) { // if updated time has been sent
el13eag 0:969893638914 581 setTimeFlag = 0; // clear flag
el13eag 0:969893638914 582 setTime(); // update time
el13eag 0:969893638914 583 }
el13eag 0:969893638914 584
el13eag 0:969893638914 585 }
el13eag 0:969893638914 586
el13eag 0:969893638914 587 }
el13eag 0:969893638914 588 /**
el13eag 0:969893638914 589 @brief Functions to get and display the date
el13eag 0:969893638914 590 */
el13eag 0:969893638914 591 void timerInterrupt()
el13eag 0:969893638914 592 {
el13eag 0:969893638914 593 char buffer[30]; // buffer used to store time string
el13eag 0:969893638914 594 time_t seconds = time(NULL); // get current time
el13eag 0:969893638914 595 // format time into a string (time and date)
el13eag 0:969893638914 596 strftime(buffer, 30 , "%D", localtime(&seconds));
el13eag 0:969893638914 597 int length = sprintf(buffer,"%s", buffer);
el13eag 0:969893638914 598 if (length <= 14) {
el13eag 0:969893638914 599 lcd.printString(buffer,0,1); // dispaly Date
el13eag 0:969893638914 600 }
el13eag 0:969893638914 601 lcd.refresh();
el13eag 0:969893638914 602
el13eag 0:969893638914 603 }
el13eag 0:969893638914 604
el13eag 0:969893638914 605 void setTime()
el13eag 0:969893638914 606 {
el13eag 0:969893638914 607 // print time for debugging
el13eag 0:969893638914 608 serial.printf("set_time - %s",rxString);
el13eag 0:969893638914 609 // atoi() converts a string to an integer
el13eag 0:969893638914 610 int time = atoi(rxString);
el13eag 0:969893638914 611 // update the time
el13eag 0:969893638914 612 set_time(time);
el13eag 0:969893638914 613 }
el13eag 0:969893638914 614
el13eag 0:969893638914 615 void serialISR()
el13eag 0:969893638914 616 {
el13eag 0:969893638914 617 // when a serial interrupt occurs, read rx string into buffer
el13eag 0:969893638914 618 serial.gets(rxString,16);
el13eag 0:969893638914 619 // set flag
el13eag 0:969893638914 620 setTimeFlag = 1;
el13eag 0:969893638914 621 }
el13eag 0:969893638914 622
el13eag 0:969893638914 623 /**
el13eag 0:969893638914 624 @brief Displays the temperature and also calls contains the alert messages for the temperature aspect of the device
el13eag 0:969893638914 625 */
el13eag 0:969893638914 626 void stopper()
el13eag 0:969893638914 627 {
el13eag 0:969893638914 628 float temperature = getTemperature();
el13eag 0:969893638914 629 char buffer[14];
el13eag 0:969893638914 630 int length = sprintf(buffer,"Temp: %2.f C", temperature);
el13eag 0:969893638914 631 if (length <= 14) {
el13eag 0:969893638914 632 lcd.printString(buffer,13,4);
el13eag 0:969893638914 633 if (temperature < 10) {
el13eag 0:969893638914 634
el13eag 0:969893638914 635 lcd.printString("Cold Weather", 8, 5);
el13eag 0:969893638914 636 }
el13eag 0:969893638914 637 if (temperature >=10 && temperature <=20) {
el13eag 0:969893638914 638
el13eag 0:969893638914 639 lcd.printString("Fairly Warm", 8, 5);
el13eag 0:969893638914 640 }
el13eag 0:969893638914 641 if (temperature >20) {
el13eag 0:969893638914 642
el13eag 0:969893638914 643 lcd.printString("Warm Weather", 8, 5);
el13eag 0:969893638914 644 }
el13eag 0:969893638914 645 }
el13eag 0:969893638914 646 lcd.refresh();
el13eag 0:969893638914 647
el13eag 0:969893638914 648 }
el13eag 0:969893638914 649 /**
el13eag 0:969893638914 650 @brief hangs in infinite loop flashing error code when something gors wrong for instance is the distance sensor was not detected
el13eag 0:969893638914 651 */
el13eag 0:969893638914 652 void error(int code)
el13eag 0:969893638914 653 {
el13eag 0:969893638914 654 while(1) {
el13eag 0:969893638914 655 leds = 0;
el13eag 0:969893638914 656 wait(0.25);
el13eag 0:969893638914 657 leds = code;
el13eag 0:969893638914 658 wait(0.25);
el13eag 0:969893638914 659 }
el13eag 0:969893638914 660 }
el13eag 0:969893638914 661
el13eag 0:969893638914 662 /**
el13eag 0:969893638914 663 @brief Function to initialise the temperature sensor
el13eag 0:969893638914 664 */
el13eag 0:969893638914 665 void initTMP102()
el13eag 0:969893638914 666 {
el13eag 0:969893638914 667 tmp102.frequency(400000); // set bus speed to 400 kHz
el13eag 0:969893638914 668 int ack; // used to store acknowledgement bit
el13eag 0:969893638914 669 char data[2]; // array for data
el13eag 0:969893638914 670 char reg = CONFIG_REG; // register address
el13eag 0:969893638914 671 //////// Read current status of configuration register ///////
el13eag 0:969893638914 672
el13eag 0:969893638914 673 ack = tmp102.write(TMP102_W_ADD,&reg,1); // send the slave write address and the configuration register address
el13eag 0:969893638914 674 if (ack)
el13eag 0:969893638914 675 error(1); // if we don't receive acknowledgement, flash error message
el13eag 0:969893638914 676 ack = tmp102.read(TMP102_R_ADD,data,2); // read default 2 bytes from configuration register and store in buffer
el13eag 0:969893638914 677 if (ack)
el13eag 0:969893638914 678 error(2); // if we don't receive acknowledgement, flash error message
el13eag 0:969893638914 679 ///////// Configure the register //////////
el13eag 0:969893638914 680 // set conversion rate to 1 Hz
el13eag 0:969893638914 681 data[1] |= (1 << 6); // set bit 6
el13eag 0:969893638914 682 data[1] &= ~(1 << 7); // clear bit 7
el13eag 0:969893638914 683
el13eag 0:969893638914 684 //////// Send the configured register to the slave ////////////
el13eag 0:969893638914 685
el13eag 0:969893638914 686 ack = tmp102.write(TMP102_W_ADD,&reg,1); // send the slave write address and the configuration register address
el13eag 0:969893638914 687 if (ack)
el13eag 0:969893638914 688 error(3); // if we don't receive acknowledgement, flash error message
el13eag 0:969893638914 689 ack = tmp102.write(TMP102_W_ADD,data,2); // send 2 data bytes to the configuration register
el13eag 0:969893638914 690 if (ack)
el13eag 0:969893638914 691 error(4); // if we don't receive acknowledgement, flash error message
el13eag 0:969893638914 692
el13eag 0:969893638914 693 }
el13eag 0:969893638914 694
el13eag 0:969893638914 695
el13eag 0:969893638914 696 /**
el13eag 0:969893638914 697 @brief Function to the temperature from the Temearature sensor
el13eag 0:969893638914 698 */
el13eag 0:969893638914 699 float getTemperature()
el13eag 0:969893638914 700
el13eag 0:969893638914 701 {
el13eag 0:969893638914 702 int ack; // used to store acknowledgement bit
el13eag 0:969893638914 703 char data[2]; // array for data
el13eag 0:969893638914 704 char reg = TEMP_REG; // temperature register address
el13eag 0:969893638914 705 ack = tmp102.write(TMP102_W_ADD,&reg,1); // send temperature register address
el13eag 0:969893638914 706 if (ack)
el13eag 0:969893638914 707 error(5); // if we don't receive acknowledgement, flash error message
el13eag 0:969893638914 708 ack = tmp102.read(TMP102_R_ADD,data,2); // read 2 bytes from temperature register and store in array
el13eag 0:969893638914 709 if (ack)
el13eag 0:969893638914 710 error(6); // if we don't receive acknowledgement, flash error message
el13eag 0:969893638914 711 int temperature = (data[0] << 4) | (data[1] >> 4);
el13eag 0:969893638914 712 return temperature*0.0625;
el13eag 0:969893638914 713 }
el13eag 0:969893638914 714
el13eag 0:969893638914 715 /**
el13eag 0:969893638914 716 @brief To clear the screen and prepare to show the date and time when the button is pressed
el13eag 0:969893638914 717 */
el13eag 0:969893638914 718 void p15Pressed(void)// To clear the screen before calling up the function
el13eag 0:969893638914 719 {
el13eag 0:969893638914 720 lcd.clear();
el13eag 0:969893638914 721 setXYAddress(0,0);
el13eag 0:969893638914 722 wait(0.5);
el13eag 0:969893638914 723 lcd.refresh();
el13eag 0:969893638914 724 }
el13eag 0:969893638914 725
el13eag 0:969893638914 726 /**
el13eag 0:969893638914 727 @brief The function is part of the PinDetect library which dose the callback function
el13eag 0:969893638914 728 */
el13eag 0:969893638914 729 void p15Released(void) // To show the content of the function (Date and time, Brightness and battey)
el13eag 0:969893638914 730 {
el13eag 0:969893638914 731 buzzer =0;
el13eag 0:969893638914 732 led2 =0;
el13eag 0:969893638914 733 tempTime(); // This is the name of the function that contains the informations to be dispalyed
el13eag 0:969893638914 734
el13eag 0:969893638914 735 wait(3.0);
el13eag 0:969893638914 736 lcd.clear();
el13eag 0:969893638914 737 lcd.refresh();
el13eag 0:969893638914 738 }
el13eag 0:969893638914 739
el13eag 0:969893638914 740 /**
el13eag 0:969893638914 741 @biref When the buton is pressed, this function enables the user to view the percentage of the brightness
el13eag 0:969893638914 742 */
el13eag 0:969893638914 743 void controlBrightness()
el13eag 0:969893638914 744 {
el13eag 0:969893638914 745 float vol = 3.3*ain2;
el13eag 0:969893638914 746 if ((vol >= 0.0) && (vol < 0.3)) {
el13eag 0:969893638914 747 lcd.printString("Brightness=0%",0,3);
el13eag 0:969893638914 748 }
el13eag 0:969893638914 749 if ((vol >= 0.3) && (vol <0.6)) {
el13eag 0:969893638914 750 lcd.printString("Brightness=10%",0,3);
el13eag 0:969893638914 751 }
el13eag 0:969893638914 752 if ((vol >= 0.6) && (vol < 0.9)) {
el13eag 0:969893638914 753 lcd.printString("Brightness=20%",0,3);
el13eag 0:969893638914 754 }
el13eag 0:969893638914 755 if ((vol >= 0.9) && (vol <1.2)) {
el13eag 0:969893638914 756 lcd.printString("Brightness=30%",0,3);
el13eag 0:969893638914 757 }
el13eag 0:969893638914 758 if ((vol >= 1.2) && (vol <1.5)) {
el13eag 0:969893638914 759 lcd.printString("Brightness=40%",0,3);
el13eag 0:969893638914 760 }
el13eag 0:969893638914 761
el13eag 0:969893638914 762 if ((vol >= 1.5) && (vol < 1.8)) {
el13eag 0:969893638914 763 lcd.printString("Brightness=50%",0,3);
el13eag 0:969893638914 764 }
el13eag 0:969893638914 765 if ((vol >= 1.8) && (vol <2.1)) {
el13eag 0:969893638914 766 lcd.printString("Brightness=60%",0,3);
el13eag 0:969893638914 767 }
el13eag 0:969893638914 768 if ((vol >= 2.1) && (vol < 2.4)) {
el13eag 0:969893638914 769 lcd.printString("Brightness=70%",0,3);
el13eag 0:969893638914 770 }
el13eag 0:969893638914 771 if ((vol >= 2.4)&& (vol < 2.7)) {
el13eag 0:969893638914 772 lcd.printString("Brightness=80%",0,3);
el13eag 0:969893638914 773 }
el13eag 0:969893638914 774 if ((vol >= 2.7)&& (vol < 3)) {
el13eag 0:969893638914 775 lcd.printString("Brightness=90%",0,3);
el13eag 0:969893638914 776 }
el13eag 0:969893638914 777 if ((vol >= 3.0)&& (vol <=3.3)) {
el13eag 0:969893638914 778 lcd.printString("Brightness=100%",0,3);
el13eag 0:969893638914 779 }
el13eag 0:969893638914 780 }
el13eag 0:969893638914 781
el13eag 0:969893638914 782 /**
el13eag 0:969893638914 783 @brief Function to draw the battery symbol, though at the time of this project a way of getting the battery life was not included but will be added in the next revision
el13eag 0:969893638914 784 */
el13eag 0:969893638914 785 void battery()
el13eag 0:969893638914 786 {
el13eag 0:969893638914 787 lcd.printString("100%", 23, 5);
el13eag 0:969893638914 788
el13eag 0:969893638914 789 for (j = 37; j < 47; j++) {
el13eag 0:969893638914 790 lcd.setPixel(3, j);
el13eag 0:969893638914 791 }
el13eag 0:969893638914 792 for (j = 37; j <47; j++) {
el13eag 0:969893638914 793 lcd.setPixel(20, j);
el13eag 0:969893638914 794 }
el13eag 0:969893638914 795
el13eag 0:969893638914 796
el13eag 0:969893638914 797 for (i = 3; i < 21; i++) {
el13eag 0:969893638914 798 lcd.setPixel(i, 37);
el13eag 0:969893638914 799 }
el13eag 0:969893638914 800 for (i = 3; i <21; i++) {
el13eag 0:969893638914 801 lcd.setPixel(i, 46);
el13eag 0:969893638914 802 }
el13eag 0:969893638914 803
el13eag 0:969893638914 804
el13eag 0:969893638914 805 for (j = 40; j < 44; j++) {
el13eag 0:969893638914 806 lcd.setPixel(21, j);
el13eag 0:969893638914 807 }
el13eag 0:969893638914 808 for (j = 40; j <44; j++) {
el13eag 0:969893638914 809 lcd.setPixel(22, j);
el13eag 0:969893638914 810 }
el13eag 0:969893638914 811
el13eag 0:969893638914 812 lcd.refresh();
el13eag 0:969893638914 813 }