Nick H / Mbed 2 deprecated final_proj_rtos

ECE 4180 final project. Sound and Bluetooth activated coffee maker

Dependencies:   mbed wave_player mbed-rtos C12832_lcd 4DGL-uLCD-SE LCD_fonts SDFileSystem

main.cpp@8:a9b5acc63388, 2019-12-06 (annotated)

Committer:
nhummel3
Date:
Fri Dec 06 13:10:47 2019 +0000
Revision:
8:a9b5acc63388
Parent:
7:2e274cc18797 
Temperature control and GUI added;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
dreschpe 2:a69c8c5f5b03 1 // example to test the mbed Lab Board lcd lib with the mbed rtos
4180_1 4:79863d2ea5a0 2 // Pot1 changes the contrast
4180_1 4:79863d2ea5a0 3 // Pot2 changes the speed of the sin wave
dreschpe 1:1c6a9eaf55b5 4
dreschpe 0:f6a57b843f79 5 #include "mbed.h"
dreschpe 0:f6a57b843f79 6 #include "rtos.h"
dreschpe 0:f6a57b843f79 7 #include "Small_6.h"
dreschpe 0:f6a57b843f79 8 #include "Small_7.h"
dreschpe 0:f6a57b843f79 9 #include "Arial_9.h"
dreschpe 0:f6a57b843f79 10 #include "stdio.h"
dreschpe 1:1c6a9eaf55b5 11 #include "C12832_lcd.h"
nhummel3 5:18b2796e4847 12 #include "sound.h"
nhummel3 6:e4aba042979b 13 #include "unsigned_fire_truck.h"
nhummel3 6:e4aba042979b 14 #include "uLCD_4DGL.h"
nhummel3 6:e4aba042979b 15 #include <mpr121.h>
dreschpe 0:f6a57b843f79 16
nhummel3 5:18b2796e4847 17 #define sample_freq 11025.0
nhummel3 5:18b2796e4847 18 //get and set the frequency from wav conversion tool GUI
4180_1 4:79863d2ea5a0 19
nhummel3 6:e4aba042979b 20 //set variables used to track throughout program
nhummel3 6:e4aba042979b 21 int reset = 1; //check if coffee pot is reset and ready to brew again
nhummel3 6:e4aba042979b 22 volatile int blink = 0; // check if blinking LED
nhummel3 6:e4aba042979b 23 int tmp_blue = 0; // check if bluetooth has been triggered at least 2 times
nhummel3 6:e4aba042979b 24 int noise = 0; // check if still playing alarm
nhummel3 6:e4aba042979b 25 int i=0; //index for audio array
nhummel3 6:e4aba042979b 26 int d = 0;
nhummel3 6:e4aba042979b 27 volatile int trigger = 0; // check if coffeepot has been triggered via sound or bluetooth
nhummel3 8:a9b5acc63388 28 volatile int menu = 1; // check if coffeepot has been triggered via sound or bluetooth
nhummel3 8:a9b5acc63388 29 int coffee = 0;
nhummel3 8:a9b5acc63388 30 int tolerance = 600;
nhummel3 8:a9b5acc63388 31 int brew_count = 0;
nhummel3 6:e4aba042979b 32
nhummel3 6:e4aba042979b 33 //Declarations
nhummel3 6:e4aba042979b 34 Ticker sampletick; //audio interrupt
nhummel3 6:e4aba042979b 35 uLCD_4DGL uLCD(p9,p10,p11);
nhummel3 6:e4aba042979b 36 AnalogIn Therm0(p18);
nhummel3 6:e4aba042979b 37 AnalogIn Therm1(p19);
nhummel3 6:e4aba042979b 38 DigitalOut key(p20);
nhummel3 6:e4aba042979b 39
nhummel3 8:a9b5acc63388 40 Serial pc(USBTX,USBRX);
4180_1 4:79863d2ea5a0 41 PwmOut Speaker(p26);
4180_1 4:79863d2ea5a0 42 PwmOut RGBLED_r(p23);
nhummel3 6:e4aba042979b 43 PwmOut RGBLED_g(p22);
nhummel3 6:e4aba042979b 44 PwmOut RGBLED_b(p21);
nhummel3 6:e4aba042979b 45 DigitalIn user_button(p12);
nhummel3 6:e4aba042979b 46 Serial blue(p28,p27);
dreschpe 2:a69c8c5f5b03 47
nhummel3 8:a9b5acc63388 48 PwmOut pump(p24);
nhummel3 8:a9b5acc63388 49 DigitalOut heater(p14); //inverted logic
nhummel3 8:a9b5acc63388 50 AnalogIn therm_out(p18);
nhummel3 8:a9b5acc63388 51 AnalogIn therm_heater(p19);
nhummel3 8:a9b5acc63388 52
nhummel3 6:e4aba042979b 53 // Mutex declarations
dreschpe 1:1c6a9eaf55b5 54 Mutex lcd_mutex;
nhummel3 6:e4aba042979b 55 Mutex leds_mutex;
nhummel3 6:e4aba042979b 56 Mutex bmut;
nhummel3 6:e4aba042979b 57 Mutex mic_mutex;
nhummel3 6:e4aba042979b 58 Mutex trigger_mutex;
dreschpe 0:f6a57b843f79 59
nhummel3 8:a9b5acc63388 60 int out_temp;
nhummel3 8:a9b5acc63388 61 int heater_temp;
nhummel3 8:a9b5acc63388 62 int out_therm;
nhummel3 8:a9b5acc63388 63 int heater_therm;
nhummel3 8:a9b5acc63388 64 int target_temp = 190;
nhummel3 8:a9b5acc63388 65
nhummel3 6:e4aba042979b 66 volatile float r = 0.0;
nhummel3 6:e4aba042979b 67 volatile float g = 0.0;
nhummel3 6:e4aba042979b 68 volatile float b = 0.0;
nhummel3 6:e4aba042979b 69
nhummel3 8:a9b5acc63388 70 float a_coeff = 93.6469;
nhummel3 8:a9b5acc63388 71 float b_coeff = 4681.5;
nhummel3 8:a9b5acc63388 72
nhummel3 8:a9b5acc63388 73 int therm_to_temp(int therm) {
nhummel3 8:a9b5acc63388 74 return int(a_coeff*log(therm/b_coeff));
nhummel3 8:a9b5acc63388 75 }
nhummel3 8:a9b5acc63388 76
nhummel3 8:a9b5acc63388 77 int temp_to_therm(int temp) {
nhummel3 8:a9b5acc63388 78 return int(b_coeff*exp((temp)/a_coeff));
nhummel3 8:a9b5acc63388 79 }
nhummel3 8:a9b5acc63388 80
nhummel3 6:e4aba042979b 81 //Audio ISR
nhummel3 5:18b2796e4847 82 void audio_sample ()
dreschpe 0:f6a57b843f79 83 {
nhummel3 6:e4aba042979b 84 //if noise flag set, play audio
nhummel3 6:e4aba042979b 85 if(noise){
nhummel3 6:e4aba042979b 86 Speaker = fire_truck_data[i%NUM_ELEMENTS_FIRE]/255.0;//scale to 0.0 to 1.0 for PWM
nhummel3 6:e4aba042979b 87 i++;
nhummel3 6:e4aba042979b 88 } else {
nhummel3 6:e4aba042979b 89 Speaker = 0;
dreschpe 0:f6a57b843f79 90 }
dreschpe 0:f6a57b843f79 91 }
dreschpe 0:f6a57b843f79 92
nhummel3 6:e4aba042979b 93 // Temporary debug variables
nhummel3 6:e4aba042979b 94 int tmp = 0;
nhummel3 8:a9b5acc63388 95 int tmp_button = 0;
nhummel3 6:e4aba042979b 96 int tmp2 = 0;
nhummel3 8:a9b5acc63388 97 int tmp0 = 0;
nhummel3 8:a9b5acc63388 98 int tmp1 = 0;
nhummel3 8:a9b5acc63388 99 int tmpM = 0;
nhummel3 8:a9b5acc63388 100
nhummel3 6:e4aba042979b 101 int num_trig = 0;
nhummel3 6:e4aba042979b 102
nhummel3 6:e4aba042979b 103 //Microphone class
nhummel3 6:e4aba042979b 104 class microphone
nhummel3 6:e4aba042979b 105 {
nhummel3 6:e4aba042979b 106 public :
nhummel3 6:e4aba042979b 107 microphone(PinName pin);
nhummel3 6:e4aba042979b 108 float read();
nhummel3 6:e4aba042979b 109 operator float ();
nhummel3 6:e4aba042979b 110 private :
nhummel3 6:e4aba042979b 111 AnalogIn _pin;
nhummel3 6:e4aba042979b 112 };
nhummel3 6:e4aba042979b 113 microphone::microphone (PinName pin):
nhummel3 6:e4aba042979b 114 _pin(pin)
nhummel3 6:e4aba042979b 115 {
nhummel3 6:e4aba042979b 116 }
nhummel3 6:e4aba042979b 117 float microphone::read()
nhummel3 6:e4aba042979b 118 {
nhummel3 6:e4aba042979b 119 return _pin.read();
nhummel3 6:e4aba042979b 120 }
nhummel3 6:e4aba042979b 121 inline microphone::operator float ()
nhummel3 6:e4aba042979b 122 {
nhummel3 6:e4aba042979b 123 return _pin.read();
nhummel3 6:e4aba042979b 124 }
nhummel3 6:e4aba042979b 125
nhummel3 6:e4aba042979b 126 microphone mymicrophone(p16);
nhummel3 6:e4aba042979b 127
nhummel3 6:e4aba042979b 128
nhummel3 5:18b2796e4847 129 //
nhummel3 6:e4aba042979b 130 // Thread 1
nhummel3 6:e4aba042979b 131 // Debug thread for microphone on LCD
nhummel3 6:e4aba042979b 132 void thread1(void const *args)
nhummel3 6:e4aba042979b 133 {
nhummel3 8:a9b5acc63388 134 lcd_mutex.lock();
nhummel3 8:a9b5acc63388 135 uLCD.filled_rectangle(0, 32, 128, 64, 0x00FF00);
nhummel3 8:a9b5acc63388 136 uLCD.locate(0,4);
nhummel3 8:a9b5acc63388 137 uLCD.color(WHITE);
nhummel3 8:a9b5acc63388 138 uLCD.textbackground_color(BLUE);
nhummel3 8:a9b5acc63388 139 uLCD.set_font(FONT_7X8);
nhummel3 8:a9b5acc63388 140 uLCD.text_mode(OPAQUE);
nhummel3 8:a9b5acc63388 141 uLCD.printf("Sensor Readings:\n\rMic:\n\rT0: \n\rT1: ");
nhummel3 8:a9b5acc63388 142 lcd_mutex.unlock();
nhummel3 6:e4aba042979b 143 while(true) { // thread loop
nhummel3 6:e4aba042979b 144 //uLCD.cls();
nhummel3 6:e4aba042979b 145 mic_mutex.lock();
nhummel3 8:a9b5acc63388 146 tmpM = int(abs((mymicrophone - (0.67/3.3)))*500.0);
nhummel3 8:a9b5acc63388 147 tmp0 = therm_to_temp(Therm0.read_u16());
nhummel3 8:a9b5acc63388 148 tmp1 = therm_to_temp(Therm1.read_u16());
nhummel3 6:e4aba042979b 149 //tmp2 = user_button;
nhummel3 6:e4aba042979b 150 mic_mutex.unlock();
nhummel3 8:a9b5acc63388 151 lcd_mutex.lock();
nhummel3 8:a9b5acc63388 152
nhummel3 8:a9b5acc63388 153 uLCD.filled_rectangle(32, 40, 72, 63, 0x00FF00);
nhummel3 8:a9b5acc63388 154 uLCD.locate(4,5);
nhummel3 8:a9b5acc63388 155 uLCD.printf("%d",tmpM);
nhummel3 8:a9b5acc63388 156 uLCD.locate(4,6);
nhummel3 8:a9b5acc63388 157 uLCD.printf("%d", tmp0);
nhummel3 8:a9b5acc63388 158 uLCD.locate(4,7);
nhummel3 8:a9b5acc63388 159 uLCD.printf("%d", tmp1);
nhummel3 6:e4aba042979b 160
nhummel3 6:e4aba042979b 161 lcd_mutex.unlock();
nhummel3 6:e4aba042979b 162 Thread::wait(100);
nhummel3 6:e4aba042979b 163 }
nhummel3 6:e4aba042979b 164 }
nhummel3 8:a9b5acc63388 165
nhummel3 5:18b2796e4847 166 //
nhummel3 8:a9b5acc63388 167 // Thread 2
nhummel3 8:a9b5acc63388 168 // Debug thread for microphone on LCD
nhummel3 8:a9b5acc63388 169 void thread2(void const *args)
nhummel3 8:a9b5acc63388 170 {
nhummel3 8:a9b5acc63388 171 lcd_mutex.lock();
nhummel3 8:a9b5acc63388 172 uLCD.filled_rectangle(0, 0, 128, 31, 0x00FF00);
nhummel3 8:a9b5acc63388 173 uLCD.locate(0,0);
nhummel3 8:a9b5acc63388 174 uLCD.color(WHITE);
nhummel3 8:a9b5acc63388 175 uLCD.textbackground_color(BLUE);
nhummel3 8:a9b5acc63388 176 uLCD.set_font(FONT_7X8);
nhummel3 8:a9b5acc63388 177 uLCD.text_mode(OPAQUE);
nhummel3 8:a9b5acc63388 178 uLCD.printf("Select Mode:");
nhummel3 8:a9b5acc63388 179 uLCD.locate(0,1);
nhummel3 8:a9b5acc63388 180 uLCD.printf(">COFFEE\n\r TEA");
nhummel3 8:a9b5acc63388 181 lcd_mutex.unlock();
nhummel3 8:a9b5acc63388 182 while(true) { // thread loop
nhummel3 8:a9b5acc63388 183 if(menu) {
nhummel3 8:a9b5acc63388 184 if(user_button == 0) {
nhummel3 8:a9b5acc63388 185 coffee = !coffee;
nhummel3 8:a9b5acc63388 186 if(coffee) {
nhummel3 8:a9b5acc63388 187 lcd_mutex.lock();
nhummel3 8:a9b5acc63388 188 uLCD.filled_rectangle(0, 8, 7, 31, 0x00FF00);
nhummel3 8:a9b5acc63388 189 uLCD.locate(0,1);
nhummel3 8:a9b5acc63388 190 uLCD.color(WHITE);
nhummel3 8:a9b5acc63388 191 uLCD.textbackground_color(BLUE);
nhummel3 8:a9b5acc63388 192 uLCD.set_font(FONT_7X8);
nhummel3 8:a9b5acc63388 193 uLCD.text_mode(OPAQUE);
nhummel3 8:a9b5acc63388 194 uLCD.printf(">\n\r ");
nhummel3 8:a9b5acc63388 195 lcd_mutex.unlock();
nhummel3 8:a9b5acc63388 196 Thread::wait(500);
nhummel3 8:a9b5acc63388 197 } else {
nhummel3 8:a9b5acc63388 198 lcd_mutex.lock();
nhummel3 8:a9b5acc63388 199 uLCD.filled_rectangle(0, 8, 7, 31, 0x00FF00);
nhummel3 8:a9b5acc63388 200 uLCD.locate(0,1);
nhummel3 8:a9b5acc63388 201 uLCD.color(WHITE);
nhummel3 8:a9b5acc63388 202 uLCD.textbackground_color(BLUE);
nhummel3 8:a9b5acc63388 203 uLCD.set_font(FONT_7X8);
nhummel3 8:a9b5acc63388 204 uLCD.text_mode(OPAQUE);
nhummel3 8:a9b5acc63388 205 uLCD.printf(" \n\r>");
nhummel3 8:a9b5acc63388 206 lcd_mutex.unlock();
nhummel3 8:a9b5acc63388 207 Thread::wait(500);
nhummel3 8:a9b5acc63388 208 }
nhummel3 8:a9b5acc63388 209 }
nhummel3 8:a9b5acc63388 210 }
nhummel3 8:a9b5acc63388 211 }
nhummel3 8:a9b5acc63388 212 }
nhummel3 8:a9b5acc63388 213
nhummel3 8:a9b5acc63388 214
nhummel3 8:a9b5acc63388 215 // Thread 3
nhummel3 8:a9b5acc63388 216 // Blink LED
nhummel3 6:e4aba042979b 217 void thread3(void const *args)
nhummel3 6:e4aba042979b 218 {
nhummel3 6:e4aba042979b 219 while(1) {
nhummel3 6:e4aba042979b 220 // if blink flag is set then blink red LED with PWM fade
nhummel3 6:e4aba042979b 221 if(blink) {
nhummel3 6:e4aba042979b 222 leds_mutex.lock();
nhummel3 6:e4aba042979b 223 RGBLED_g = 0;
nhummel3 6:e4aba042979b 224 RGBLED_b = 0;
nhummel3 6:e4aba042979b 225 leds_mutex.unlock();
nhummel3 6:e4aba042979b 226 for(float j = 0.2; j<= 1.0; j+=0.1) {
nhummel3 6:e4aba042979b 227 leds_mutex.lock();
nhummel3 6:e4aba042979b 228 RGBLED_r = j;
nhummel3 6:e4aba042979b 229 leds_mutex.unlock();
nhummel3 6:e4aba042979b 230 Thread::wait(20);
nhummel3 6:e4aba042979b 231 }
nhummel3 6:e4aba042979b 232 Thread::wait(100);
nhummel3 6:e4aba042979b 233 for(float j = 1.0; j>= 0.2; j-=0.1) {
nhummel3 6:e4aba042979b 234 leds_mutex.lock();
nhummel3 6:e4aba042979b 235 RGBLED_r = j;
nhummel3 6:e4aba042979b 236 leds_mutex.unlock();
nhummel3 6:e4aba042979b 237 Thread::wait(10);
nhummel3 6:e4aba042979b 238 }
nhummel3 6:e4aba042979b 239 Thread::wait(100); // value of pot1 / 100
nhummel3 6:e4aba042979b 240 }
nhummel3 6:e4aba042979b 241 }
nhummel3 6:e4aba042979b 242 }
nhummel3 5:18b2796e4847 243 //
nhummel3 5:18b2796e4847 244 //// Thread 4
nhummel3 6:e4aba042979b 245 //// Microphone parser, triggers coffee pot when over certain value
nhummel3 6:e4aba042979b 246 void thread4(void const *args)
nhummel3 6:e4aba042979b 247 {
nhummel3 6:e4aba042979b 248 while(1) {
nhummel3 6:e4aba042979b 249 //read in, subtract 0.67 DC bias, take absolute value, and scale up .1Vpp to 15 for builtin LED display
nhummel3 6:e4aba042979b 250 mic_mutex.lock();
nhummel3 6:e4aba042979b 251 tmp = int(abs((mymicrophone - (0.67/3.3)))*500.0);
nhummel3 6:e4aba042979b 252 mic_mutex.unlock();
nhummel3 8:a9b5acc63388 253 if(tmp > 15) {
nhummel3 6:e4aba042979b 254 num_trig = num_trig+1;
nhummel3 6:e4aba042979b 255 //only trigger if get sample above value 3 times in a row
nhummel3 8:a9b5acc63388 256 if(num_trig == 2) {
nhummel3 6:e4aba042979b 257 trigger_mutex.lock();
nhummel3 6:e4aba042979b 258 trigger = 1;
nhummel3 6:e4aba042979b 259 trigger_mutex.unlock();
nhummel3 6:e4aba042979b 260 tmp = 0;
nhummel3 6:e4aba042979b 261 Thread::wait(200);
nhummel3 6:e4aba042979b 262 }
nhummel3 6:e4aba042979b 263 } else {
nhummel3 6:e4aba042979b 264 num_trig = 0;
nhummel3 6:e4aba042979b 265 }
nhummel3 6:e4aba042979b 266 }
nhummel3 6:e4aba042979b 267 }
nhummel3 6:e4aba042979b 268 // Thread 5
nhummel3 6:e4aba042979b 269 // Bluetooth parser to trigger coffee pot
nhummel3 6:e4aba042979b 270 void thread5(void const *args)
nhummel3 6:e4aba042979b 271 {
nhummel3 6:e4aba042979b 272 while(true) {
nhummel3 6:e4aba042979b 273 //if recieve any button from bluetooth, increment tmp_blue
nhummel3 6:e4aba042979b 274 if (blue.readable()){
nhummel3 6:e4aba042979b 275 bmut.lock();
nhummel3 6:e4aba042979b 276 if (blue.getc() == '!') {
nhummel3 6:e4aba042979b 277 if (blue.getc() == 'B') {
nhummel3 6:e4aba042979b 278 tmp_blue++;
nhummel3 6:e4aba042979b 279 }
nhummel3 6:e4aba042979b 280 }
nhummel3 6:e4aba042979b 281
nhummel3 6:e4aba042979b 282 bmut.unlock();
nhummel3 6:e4aba042979b 283 }
nhummel3 6:e4aba042979b 284 // if receive message from bluetooth twice in a row, trigger coffee pot
nhummel3 6:e4aba042979b 285 if(tmp_blue == 2) {
nhummel3 6:e4aba042979b 286 trigger_mutex.lock();
nhummel3 6:e4aba042979b 287 trigger = 1;
nhummel3 6:e4aba042979b 288 trigger_mutex.unlock();
nhummel3 6:e4aba042979b 289 tmp_blue = 0;
nhummel3 6:e4aba042979b 290 }
nhummel3 6:e4aba042979b 291 }
nhummel3 6:e4aba042979b 292 }
4180_1 4:79863d2ea5a0 293
nhummel3 8:a9b5acc63388 294 void brew() {
nhummel3 8:a9b5acc63388 295 if(coffee) {
nhummel3 8:a9b5acc63388 296 target_temp = 190;
nhummel3 8:a9b5acc63388 297 } else {
nhummel3 8:a9b5acc63388 298 target_temp = 180;
nhummel3 8:a9b5acc63388 299 }
nhummel3 8:a9b5acc63388 300 brew_count = 0;
nhummel3 8:a9b5acc63388 301 while(1) {
nhummel3 8:a9b5acc63388 302 out_therm = therm_out.read_u16();
nhummel3 8:a9b5acc63388 303 heater_therm = therm_heater.read_u16();
nhummel3 8:a9b5acc63388 304 //pc.printf("Iteration:%d; Output Temp:%d, Heater Temp:%d\n\r", i, therm_to_temp(out_therm), therm_to_temp(heater_therm));
nhummel3 8:a9b5acc63388 305 if(brew_count > 20 && out_therm > 40600) {
nhummel3 8:a9b5acc63388 306 //Done
nhummel3 8:a9b5acc63388 307 heater = 1;
nhummel3 8:a9b5acc63388 308 pump = 1;
nhummel3 8:a9b5acc63388 309 wait(3);
nhummel3 8:a9b5acc63388 310 pump = 0;
nhummel3 8:a9b5acc63388 311 return;
nhummel3 8:a9b5acc63388 312 } else {
nhummel3 8:a9b5acc63388 313 if(out_therm - temp_to_therm(target_temp) > tolerance) {
nhummel3 8:a9b5acc63388 314 //cool down
nhummel3 8:a9b5acc63388 315 pump = 0.8;
nhummel3 8:a9b5acc63388 316 heater = 1; //off bc inverted
nhummel3 8:a9b5acc63388 317 } else if(out_therm - temp_to_therm(target_temp) < tolerance) {
nhummel3 8:a9b5acc63388 318 //heat up
nhummel3 8:a9b5acc63388 319 pump = 0.25;
nhummel3 8:a9b5acc63388 320 heater = 0; //on
nhummel3 8:a9b5acc63388 321 } else {
nhummel3 8:a9b5acc63388 322 pump = 0.4;
nhummel3 8:a9b5acc63388 323 heater = 0; //on
nhummel3 8:a9b5acc63388 324 }
nhummel3 8:a9b5acc63388 325 wait(0.5);
nhummel3 8:a9b5acc63388 326 }
nhummel3 8:a9b5acc63388 327 brew_count++;
nhummel3 8:a9b5acc63388 328 }
nhummel3 8:a9b5acc63388 329 }
nhummel3 8:a9b5acc63388 330
dreschpe 0:f6a57b843f79 331 int main()
dreschpe 0:f6a57b843f79 332 {
nhummel3 6:e4aba042979b 333 // ---------Enter Initialize State---------
nhummel3 6:e4aba042979b 334 //set key to high initially to not trigger coffee pot
nhummel3 6:e4aba042979b 335 key = 1;
nhummel3 8:a9b5acc63388 336 pump = 0;
nhummel3 8:a9b5acc63388 337 heater = 0;
nhummel3 6:e4aba042979b 338 RGBLED_r = 0.5;
nhummel3 6:e4aba042979b 339 wait(0.1);
nhummel3 6:e4aba042979b 340 //set baud rate
nhummel3 6:e4aba042979b 341 blue.baud(9600);
nhummel3 6:e4aba042979b 342 //set speaker period
nhummel3 5:18b2796e4847 343 Speaker.period(1.0/250000.0);
nhummel3 8:a9b5acc63388 344 Thread t1(thread1); //start thread1
nhummel3 8:a9b5acc63388 345 Thread t2(thread2); //start thread3
nhummel3 6:e4aba042979b 346 Thread t3(thread3); //start thread3
nhummel3 6:e4aba042979b 347 Thread t4(thread4); //start thread4
nhummel3 6:e4aba042979b 348 Thread t5(thread5); //start thread5
nhummel3 6:e4aba042979b 349
nhummel3 6:e4aba042979b 350 //set button mode
nhummel3 6:e4aba042979b 351 user_button.mode(PullUp);
nhummel3 6:e4aba042979b 352 wait(0.001);
nhummel3 6:e4aba042979b 353
nhummel3 6:e4aba042979b 354 //---------Enter Ready State---------
nhummel3 8:a9b5acc63388 355 lcd_mutex.lock();
nhummel3 6:e4aba042979b 356 uLCD.cls();
nhummel3 8:a9b5acc63388 357 uLCD.filled_rectangle(0, 79, 128, 112, 0x00FF00);
nhummel3 8:a9b5acc63388 358 uLCD.locate(0,10);
nhummel3 8:a9b5acc63388 359 uLCD.color(WHITE);
nhummel3 8:a9b5acc63388 360 uLCD.textbackground_color(BLUE);
nhummel3 8:a9b5acc63388 361 uLCD.set_font(FONT_7X8);
nhummel3 8:a9b5acc63388 362 uLCD.text_mode(OPAQUE);
nhummel3 8:a9b5acc63388 363 uLCD.printf("State:");
nhummel3 8:a9b5acc63388 364 uLCD.locate(0,11);
nhummel3 6:e4aba042979b 365 uLCD.printf("READY");
nhummel3 8:a9b5acc63388 366 lcd_mutex.unlock();
nhummel3 6:e4aba042979b 367
nhummel3 6:e4aba042979b 368 //attach audio interrupt
nhummel3 6:e4aba042979b 369 sampletick.attach(&audio_sample, 1.0 / sample_freq);
nhummel3 5:18b2796e4847 370
nhummel3 6:e4aba042979b 371 while(1){
nhummel3 8:a9b5acc63388 372 Thread::wait(50);
nhummel3 6:e4aba042979b 373 //set mutex lock for trigger
nhummel3 8:a9b5acc63388 374 //pc.printf("%d\n\n\r",Therm0.read_u16());
nhummel3 6:e4aba042979b 375 //if trigger flag is set, start coffee pot
nhummel3 6:e4aba042979b 376 if(trigger) {
nhummel3 6:e4aba042979b 377 // ---------Enter Brewing State---------
nhummel3 8:a9b5acc63388 378 menu = 0;
nhummel3 8:a9b5acc63388 379 trigger_mutex.lock();
nhummel3 6:e4aba042979b 380 //write to LCD
nhummel3 8:a9b5acc63388 381 lcd_mutex.lock();
nhummel3 8:a9b5acc63388 382 uLCD.filled_rectangle(0, 88, 100, 111, 0x00FF00);
nhummel3 8:a9b5acc63388 383 uLCD.locate(0,11);
nhummel3 6:e4aba042979b 384 uLCD.printf("BREWING...");
nhummel3 8:a9b5acc63388 385 lcd_mutex.unlock();
nhummel3 6:e4aba042979b 386
nhummel3 6:e4aba042979b 387 //set microphone mutex lock to prevent false trigger while running
nhummel3 6:e4aba042979b 388 mic_mutex.lock();
nhummel3 6:e4aba042979b 389
nhummel3 6:e4aba042979b 390 // set coffee pot trigger to low
nhummel3 8:a9b5acc63388 391 //key = 0;
nhummel3 6:e4aba042979b 392 //changing LED to indicate trigger
nhummel3 6:e4aba042979b 393 leds_mutex.lock();
nhummel3 6:e4aba042979b 394 RGBLED_r = 0;
nhummel3 6:e4aba042979b 395 RGBLED_b = 0;
nhummel3 6:e4aba042979b 396 RGBLED_g = 1;
nhummel3 6:e4aba042979b 397 leds_mutex.unlock();
nhummel3 6:e4aba042979b 398 Thread::wait(200);
nhummel3 6:e4aba042979b 399
nhummel3 6:e4aba042979b 400 // set coffee pot trigger back to high after pulse
nhummel3 8:a9b5acc63388 401 //key = 1;
nhummel3 6:e4aba042979b 402
nhummel3 6:e4aba042979b 403 // change LED to indicate running
nhummel3 6:e4aba042979b 404 leds_mutex.lock();
nhummel3 6:e4aba042979b 405 RGBLED_g = 0;
nhummel3 6:e4aba042979b 406 RGBLED_b = 1;
nhummel3 6:e4aba042979b 407 leds_mutex.unlock();
nhummel3 8:a9b5acc63388 408
nhummel3 8:a9b5acc63388 409 // Brew Drink
nhummel3 8:a9b5acc63388 410 //wait(3);
nhummel3 8:a9b5acc63388 411 brew();
nhummel3 6:e4aba042979b 412
nhummel3 6:e4aba042979b 413 // ---------Enter Reset State---------
nhummel3 6:e4aba042979b 414
nhummel3 6:e4aba042979b 415 // set noise flag high
nhummel3 6:e4aba042979b 416 noise = 1;
nhummel3 8:a9b5acc63388 417 lcd_mutex.lock();
nhummel3 8:a9b5acc63388 418 uLCD.filled_rectangle(0, 88, 100, 111, 0x00FF00);
nhummel3 8:a9b5acc63388 419 uLCD.locate(0,11);
nhummel3 8:a9b5acc63388 420 uLCD.printf("COFFEE READY\n\rPLEASE PRESS\n\rRESET");
nhummel3 8:a9b5acc63388 421 lcd_mutex.unlock();
nhummel3 6:e4aba042979b 422
nhummel3 6:e4aba042979b 423 // set led blink flag high
nhummel3 6:e4aba042979b 424 blink = 1;
nhummel3 6:e4aba042979b 425
nhummel3 6:e4aba042979b 426 //wait for reset button press from user
nhummel3 6:e4aba042979b 427 while(reset) {
nhummel3 6:e4aba042979b 428 reset = user_button;
nhummel3 6:e4aba042979b 429 Thread::wait(1);
nhummel3 6:e4aba042979b 430 }
nhummel3 8:a9b5acc63388 431 //---------Enter User Restock---------
nhummel3 8:a9b5acc63388 432 blink = 0;
nhummel3 8:a9b5acc63388 433 // set noise flag low
nhummel3 8:a9b5acc63388 434 noise = 0;
nhummel3 8:a9b5acc63388 435 lcd_mutex.lock();
nhummel3 8:a9b5acc63388 436 uLCD.filled_rectangle(0, 88, 100, 111, 0x00FF00);
nhummel3 8:a9b5acc63388 437 uLCD.locate(0,11);
nhummel3 8:a9b5acc63388 438 uLCD.printf("Please Restock\n\rThe Machine");
nhummel3 8:a9b5acc63388 439 lcd_mutex.unlock();
nhummel3 8:a9b5acc63388 440
nhummel3 8:a9b5acc63388 441 wait(0.5);
nhummel3 8:a9b5acc63388 442 reset = user_button;
nhummel3 8:a9b5acc63388 443 while(reset) {
nhummel3 8:a9b5acc63388 444 reset = user_button;
nhummel3 8:a9b5acc63388 445 Thread::wait(1);
nhummel3 8:a9b5acc63388 446 }
nhummel3 6:e4aba042979b 447
nhummel3 6:e4aba042979b 448 //---------Enter Ready State---------
nhummel3 6:e4aba042979b 449
nhummel3 6:e4aba042979b 450 // set led blink flag low
nhummel3 6:e4aba042979b 451 blink = 0;
nhummel3 8:a9b5acc63388 452 lcd_mutex.lock();
nhummel3 8:a9b5acc63388 453 uLCD.filled_rectangle(0, 88, 100, 111, 0x00FF00);
nhummel3 8:a9b5acc63388 454 uLCD.locate(0,11);
nhummel3 6:e4aba042979b 455 uLCD.printf("READY");
nhummel3 8:a9b5acc63388 456 lcd_mutex.unlock();
nhummel3 6:e4aba042979b 457
nhummel3 6:e4aba042979b 458 // set noise flag low
nhummel3 6:e4aba042979b 459 noise = 0;
nhummel3 6:e4aba042979b 460 // set reset flag high
nhummel3 6:e4aba042979b 461 reset = 1;
nhummel3 6:e4aba042979b 462
nhummel3 6:e4aba042979b 463 // change leds to indicate ready state
nhummel3 6:e4aba042979b 464 leds_mutex.lock();
nhummel3 6:e4aba042979b 465 RGBLED_g = 0;
nhummel3 6:e4aba042979b 466 RGBLED_b = 0;
nhummel3 6:e4aba042979b 467 RGBLED_r = 1;
nhummel3 6:e4aba042979b 468 leds_mutex.unlock();
nhummel3 6:e4aba042979b 469
nhummel3 6:e4aba042979b 470 // set trigger flag low
nhummel3 6:e4aba042979b 471 trigger = 0;
nhummel3 8:a9b5acc63388 472 wait(0.4);
nhummel3 6:e4aba042979b 473 mic_mutex.unlock();
nhummel3 8:a9b5acc63388 474 trigger_mutex.unlock();
nhummel3 8:a9b5acc63388 475 menu = 1;
nhummel3 6:e4aba042979b 476 }
dreschpe 0:f6a57b843f79 477 }
nhummel3 6:e4aba042979b 478 }