FFT LED Display / 4180_EditThis_copy_Demo_Test

help :(

Dependencies:   FFT

main.cpp@8:24c18eecc442, 2020-12-04 (annotated)

Committer:
dimitryjl23
Date:
Fri Dec 04 03:48:15 2020 +0000
Revision:
8:24c18eecc442
Parent:
7:0d62545e6d73
Child:
9:97abd5e954f1
will this work?; ;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
annieluo2 0:d6c9b09b4042 1 #include "mbed.h"
annieluo2 0:d6c9b09b4042 2 #include "SDFileSystem.h"
annieluo2 0:d6c9b09b4042 3 #include "wave_player.h"
annieluo2 0:d6c9b09b4042 4 #include "Adafruit_LEDBackpack.h"
annieluo2 0:d6c9b09b4042 5 #include "Adafruit_GFX.h"
annieluo2 0:d6c9b09b4042 6 #include "rtos.h"
annieluo2 0:d6c9b09b4042 7 #include "FFT.h"
shyamgatech 5:598d94b45bad 8 #include <string>
dimitryjl23 8:24c18eecc442 9 #include "around_the_world-atc-array.h"
dimitryjl23 8:24c18eecc442 10 #include "dont_speak-no_doubt-array.h"
dimitryjl23 8:24c18eecc442 11 #include "my-love-array.h"
annieluo2 0:d6c9b09b4042 12
annieluo2 0:d6c9b09b4042 13 SDFileSystem sd(p5, p6, p7, p8, "sd"); // SD card
annieluo2 0:d6c9b09b4042 14
shyamgatech 5:598d94b45bad 15 I2C i2c(p28, p27); // LED display
annieluo2 0:d6c9b09b4042 16 Adafruit_8x8matrix matrix = Adafruit_8x8matrix(&i2c);
annieluo2 0:d6c9b09b4042 17
annieluo2 0:d6c9b09b4042 18 AnalogOut DACout(p18); // speaker
annieluo2 0:d6c9b09b4042 19 wave_player waver(&DACout);
annieluo2 0:d6c9b09b4042 20 Mutex speaker_lock;
dimitryjl23 8:24c18eecc442 21 Mutex file_lock;
dimitryjl23 2:a6e81c45ef48 22 DigitalOut myled(LED1); // mbed LED
dimitryjl23 2:a6e81c45ef48 23 Serial pc (USBTX,USBRX);
shyamgatech 5:598d94b45bad 24 string dir; // "/sd/" + song + ".wav"
dimitryjl23 8:24c18eecc442 25 //string song = "around_the_world-atc";
shyamgatech 5:598d94b45bad 26 string song;
dimitryjl23 8:24c18eecc442 27 int song_data_length;
dimitryjl23 8:24c18eecc442 28 int song_data[];
dimitryjl23 8:24c18eecc442 29 bool play = false;
annieluo2 0:d6c9b09b4042 30
annieluo2 0:d6c9b09b4042 31
annieluo2 1:5dd6801bb0d6 32 // delete later
dimitryjl23 2:a6e81c45ef48 33 /*int sample[12][8] = {
shyamgatech 5:598d94b45bad 34 34085,32666,29810,29823,27514,24175,24468,32559,
shyamgatech 5:598d94b45bad 35 36401,33075,29037,21933,20189,21751,20975,20087,
shyamgatech 5:598d94b45bad 36 17530,27723,30891,21128,19982,15446,12413,13597,
shyamgatech 5:598d94b45bad 37 15776,14233,15622,16334,15485,17136,16389,17954,
shyamgatech 5:598d94b45bad 38 20349,18486,23377,34447,34400,34681,33107,31171,
shyamgatech 5:598d94b45bad 39 30007,33640,37007,38136,39187,38169,51831,52041,
shyamgatech 5:598d94b45bad 40 47831,48634,44189,43878,44743,46468,43170,47172,
shyamgatech 5:598d94b45bad 41 53518,52294,54825,51992,49619,48147,47901,48413,
shyamgatech 5:598d94b45bad 42 46049,49090,47590,46154,45423,41223,41782,54695,
shyamgatech 5:598d94b45bad 43 57452,51210,52462,59096,56711,52268,49364,42865,
shyamgatech 5:598d94b45bad 44 41483,37964,39215,35908,31570,28332,24492,23121,
annieluo2 1:5dd6801bb0d6 45 22874,18154,15541,15263,12463,12198,13301,9951
dimitryjl23 2:a6e81c45ef48 46 };*/
dimitryjl23 8:24c18eecc442 47
dimitryjl23 8:24c18eecc442 48
annieluo2 3:3dbf078989b1 49 #define BUFFER_SIZE 64
annieluo2 1:5dd6801bb0d6 50
annieluo2 1:5dd6801bb0d6 51 // states for display output
shyamgatech 5:598d94b45bad 52 const int on[8][8] = {
shyamgatech 5:598d94b45bad 53 1, 1, 1, 1, 1, 1, 1, 1,
shyamgatech 5:598d94b45bad 54 1, 1, 1, 1, 1, 1, 1, 1,
shyamgatech 5:598d94b45bad 55 1, 1, 1, 1, 1, 1, 1, 1,
shyamgatech 5:598d94b45bad 56 1, 1, 1, 1, 1, 1, 1, 1,
shyamgatech 5:598d94b45bad 57 1, 1, 1, 1, 1, 1, 1, 1,
shyamgatech 5:598d94b45bad 58 1, 1, 1, 1, 1, 1, 1, 1,
shyamgatech 5:598d94b45bad 59 1, 1, 1, 1, 1, 1, 1, 1,
shyamgatech 5:598d94b45bad 60 1, 1, 1, 1, 1, 1, 1, 1
shyamgatech 5:598d94b45bad 61 };
annieluo2 1:5dd6801bb0d6 62
shyamgatech 5:598d94b45bad 63 const int high[8][8] = {
shyamgatech 5:598d94b45bad 64 0, 0, 0, 1, 1, 0, 0, 0,
shyamgatech 5:598d94b45bad 65 0, 0, 0, 1, 1, 0, 0, 0,
shyamgatech 5:598d94b45bad 66 0, 0, 1, 1, 1, 1, 0, 0,
shyamgatech 5:598d94b45bad 67 0, 1, 1, 1, 1, 1, 1, 0,
shyamgatech 5:598d94b45bad 68 0, 1, 1, 1, 1, 1, 1, 0,
shyamgatech 5:598d94b45bad 69 1, 1, 1, 1, 1, 1, 1, 1,
shyamgatech 5:598d94b45bad 70 1, 1, 1, 1, 1, 1, 1, 1,
shyamgatech 5:598d94b45bad 71 1, 1, 1, 1, 1, 1, 1, 1
shyamgatech 5:598d94b45bad 72 };
annieluo2 1:5dd6801bb0d6 73
shyamgatech 5:598d94b45bad 74 const int med[8][8] = {
shyamgatech 5:598d94b45bad 75 0, 0, 0, 0, 0, 0, 0, 0,
shyamgatech 5:598d94b45bad 76 0, 0, 0, 0, 0, 0, 0, 0,
shyamgatech 5:598d94b45bad 77 0, 0, 0, 1, 1, 0, 0, 0,
shyamgatech 5:598d94b45bad 78 0, 0, 1, 1, 1, 1, 0, 0,
shyamgatech 5:598d94b45bad 79 0, 0, 1, 1, 1, 1, 0, 0,
shyamgatech 5:598d94b45bad 80 0, 1, 1, 1, 1, 1, 1, 0,
shyamgatech 5:598d94b45bad 81 1, 1, 1, 1, 1, 1, 1, 1,
shyamgatech 5:598d94b45bad 82 1, 1, 1, 1, 1, 1, 1, 1
shyamgatech 5:598d94b45bad 83 };
annieluo2 1:5dd6801bb0d6 84
shyamgatech 5:598d94b45bad 85 const int low[8][8] = {
shyamgatech 5:598d94b45bad 86 0, 0, 0, 0, 0, 0, 0, 0,
shyamgatech 5:598d94b45bad 87 0, 0, 0, 0, 0, 0, 0, 0,
shyamgatech 5:598d94b45bad 88 0, 0, 0, 0, 0, 0, 0, 0,
shyamgatech 5:598d94b45bad 89 0, 0, 0, 0, 0, 0, 0, 0,
shyamgatech 5:598d94b45bad 90 0, 0, 0, 0, 0, 0, 0, 0,
shyamgatech 5:598d94b45bad 91 0, 0, 1, 1, 1, 1, 0, 0,
shyamgatech 5:598d94b45bad 92 0, 1, 1, 1, 1, 1, 1, 0,
shyamgatech 5:598d94b45bad 93 1, 1, 1, 1, 1, 1, 1, 1
shyamgatech 5:598d94b45bad 94 };
annieluo2 1:5dd6801bb0d6 95
shyamgatech 5:598d94b45bad 96 const int off[8][8] = {
shyamgatech 5:598d94b45bad 97 0, 0, 0, 0, 0, 0, 0, 0,
shyamgatech 5:598d94b45bad 98 0, 0, 0, 0, 0, 0, 0, 0,
shyamgatech 5:598d94b45bad 99 0, 0, 0, 0, 0, 0, 0, 0,
shyamgatech 5:598d94b45bad 100 0, 0, 0, 0, 0, 0, 0, 0,
shyamgatech 5:598d94b45bad 101 0, 0, 0, 0, 0, 0, 0, 0,
shyamgatech 5:598d94b45bad 102 0, 0, 0, 0, 0, 0, 0, 0,
shyamgatech 5:598d94b45bad 103 0, 0, 0, 0, 0, 0, 0, 0,
shyamgatech 5:598d94b45bad 104 0, 0, 0, 0, 0, 0, 0, 0
shyamgatech 5:598d94b45bad 105 };
annieluo2 1:5dd6801bb0d6 106
dimitryjl23 2:a6e81c45ef48 107
dimitryjl23 2:a6e81c45ef48 108
dimitryjl23 8:24c18eecc442 109
dimitryjl23 8:24c18eecc442 110 void display_fft(float sample[])
shyamgatech 5:598d94b45bad 111 {
shyamgatech 5:598d94b45bad 112
annieluo2 1:5dd6801bb0d6 113 int state = 0;
annieluo2 3:3dbf078989b1 114 float freq = 0;
annieluo2 1:5dd6801bb0d6 115 matrix.begin(0x70);
shyamgatech 5:598d94b45bad 116
shyamgatech 5:598d94b45bad 117
dimitryjl23 8:24c18eecc442 118 // for (int a = 0; a < 64; a++) {
dimitryjl23 8:24c18eecc442 119
dimitryjl23 8:24c18eecc442 120 freq = sample[1]/4;
annieluo2 3:3dbf078989b1 121
dimitryjl23 8:24c18eecc442 122
dimitryjl23 8:24c18eecc442 123 //pc.printf("%f\n",freq);
dimitryjl23 8:24c18eecc442 124
dimitryjl23 8:24c18eecc442 125 // determine state based on the FFT output range
dimitryjl23 8:24c18eecc442 126 if (freq < 10000) {
dimitryjl23 8:24c18eecc442 127 state = 5; // OFF
dimitryjl23 8:24c18eecc442 128 } else if (freq >= 10000 && freq < 25000) {
dimitryjl23 8:24c18eecc442 129 state = 4; // LOW
dimitryjl23 8:24c18eecc442 130 } else if (freq >= 25000 && freq < 40000) {
dimitryjl23 8:24c18eecc442 131 state = 3; // MED
dimitryjl23 8:24c18eecc442 132 } else if (freq >= 40000 && freq < 55000) {
dimitryjl23 8:24c18eecc442 133 state = 2; // HIGH
dimitryjl23 8:24c18eecc442 134 } else if (freq >= 55000) {
dimitryjl23 8:24c18eecc442 135 state = 1; // ON
dimitryjl23 8:24c18eecc442 136 }
shyamgatech 5:598d94b45bad 137
dimitryjl23 8:24c18eecc442 138 // switch statement based on the state
dimitryjl23 8:24c18eecc442 139 switch (state) {
dimitryjl23 8:24c18eecc442 140 case(1): // CASE HIGHEST
dimitryjl23 8:24c18eecc442 141 matrix.clear();
dimitryjl23 8:24c18eecc442 142 for (int i = 0; i < 8; i++) {
dimitryjl23 8:24c18eecc442 143 for (int j = 0; j < 8; j++) {
dimitryjl23 8:24c18eecc442 144 if (on[i][j] == 1) {
dimitryjl23 8:24c18eecc442 145 matrix.drawPixel(i, j, LED_ON);
dimitryjl23 8:24c18eecc442 146 }
dimitryjl23 8:24c18eecc442 147 }
dimitryjl23 8:24c18eecc442 148 }
dimitryjl23 8:24c18eecc442 149 matrix.writeDisplay();
dimitryjl23 8:24c18eecc442 150 wait(.15);
dimitryjl23 8:24c18eecc442 151 break;
dimitryjl23 8:24c18eecc442 152
dimitryjl23 8:24c18eecc442 153 case(2): // CASE HIGH
dimitryjl23 8:24c18eecc442 154 matrix.clear();
dimitryjl23 8:24c18eecc442 155 for (int i = 0; i < 8; i++) {
dimitryjl23 8:24c18eecc442 156 for (int j = 0; j < 8; j++) {
dimitryjl23 8:24c18eecc442 157 if (high[i][j] == 1) {
dimitryjl23 8:24c18eecc442 158 matrix.drawPixel(i, j, LED_ON);
annieluo2 1:5dd6801bb0d6 159 }
annieluo2 1:5dd6801bb0d6 160 }
dimitryjl23 8:24c18eecc442 161 }
dimitryjl23 8:24c18eecc442 162 matrix.writeDisplay();
dimitryjl23 8:24c18eecc442 163 wait(.15);
dimitryjl23 8:24c18eecc442 164
dimitryjl23 8:24c18eecc442 165
shyamgatech 5:598d94b45bad 166
dimitryjl23 8:24c18eecc442 167 case(3): // CASE MEDIUM
dimitryjl23 8:24c18eecc442 168 matrix.clear();
dimitryjl23 8:24c18eecc442 169 for (int i = 0; i < 8; i++) {
dimitryjl23 8:24c18eecc442 170 for (int j = 0; j < 8; j++) {
dimitryjl23 8:24c18eecc442 171 if (med[i][j] == 1) {
dimitryjl23 8:24c18eecc442 172 matrix.drawPixel(i, j, LED_ON);
annieluo2 1:5dd6801bb0d6 173 }
annieluo2 1:5dd6801bb0d6 174 }
dimitryjl23 8:24c18eecc442 175 }
dimitryjl23 8:24c18eecc442 176 matrix.writeDisplay();
dimitryjl23 8:24c18eecc442 177 wait(.15);
dimitryjl23 8:24c18eecc442 178 break;
shyamgatech 5:598d94b45bad 179
dimitryjl23 8:24c18eecc442 180 case(4): // CASE LOW
dimitryjl23 8:24c18eecc442 181 matrix.clear();
dimitryjl23 8:24c18eecc442 182 for (int i = 0; i < 8; i++) {
dimitryjl23 8:24c18eecc442 183 for (int j = 0; j < 8; j++) {
dimitryjl23 8:24c18eecc442 184 if (low[i][j] == 1) {
dimitryjl23 8:24c18eecc442 185 matrix.drawPixel(i, j, LED_ON);
annieluo2 1:5dd6801bb0d6 186 }
annieluo2 1:5dd6801bb0d6 187 }
dimitryjl23 8:24c18eecc442 188 }
dimitryjl23 8:24c18eecc442 189 matrix.writeDisplay();
dimitryjl23 8:24c18eecc442 190 wait(.15);
dimitryjl23 8:24c18eecc442 191 break;
shyamgatech 5:598d94b45bad 192
dimitryjl23 8:24c18eecc442 193 case(5): // CASE OFF
dimitryjl23 8:24c18eecc442 194 matrix.clear();
dimitryjl23 8:24c18eecc442 195 for (int i = 0; i < 8; i++) {
dimitryjl23 8:24c18eecc442 196 for (int j = 0; j < 8; j++) {
dimitryjl23 8:24c18eecc442 197 if (off[i][j] == 1) {
dimitryjl23 8:24c18eecc442 198 matrix.drawPixel(i, j, LED_ON);
annieluo2 1:5dd6801bb0d6 199 }
annieluo2 1:5dd6801bb0d6 200 }
dimitryjl23 8:24c18eecc442 201 }
dimitryjl23 8:24c18eecc442 202 matrix.writeDisplay();
dimitryjl23 8:24c18eecc442 203 wait(.15);
dimitryjl23 8:24c18eecc442 204 break;
shyamgatech 5:598d94b45bad 205
dimitryjl23 8:24c18eecc442 206 default:
dimitryjl23 8:24c18eecc442 207 break;
shyamgatech 5:598d94b45bad 208 }
shyamgatech 5:598d94b45bad 209
dimitryjl23 8:24c18eecc442 210 //}
dimitryjl23 8:24c18eecc442 211
dimitryjl23 8:24c18eecc442 212 //pc.printf("done");
dimitryjl23 8:24c18eecc442 213
dimitryjl23 2:a6e81c45ef48 214 }
dimitryjl23 2:a6e81c45ef48 215
dimitryjl23 2:a6e81c45ef48 216 //Reads SD card and passes value to frequency display
dimitryjl23 2:a6e81c45ef48 217 void display_thread(void const* args)
dimitryjl23 2:a6e81c45ef48 218 {
dimitryjl23 8:24c18eecc442 219 while(1) {
shyamgatech 5:598d94b45bad 220
dimitryjl23 8:24c18eecc442 221 float buffer[BUFFER_SIZE];
dimitryjl23 8:24c18eecc442 222 int buffer_index = 0;
dimitryjl23 8:24c18eecc442 223
dimitryjl23 8:24c18eecc442 224 //int num_elements = NUM_ELEMENTS_AROUND_THE_WORLD;
dimitryjl23 8:24c18eecc442 225 int num_elements = 16979;
dimitryjl23 8:24c18eecc442 226 for(int i=0; i<num_elements; ++i ) {
dimitryjl23 8:24c18eecc442 227 buffer[buffer_index] = song_data[i];
dimitryjl23 8:24c18eecc442 228 // pc.printf("%f", buffer[buffer_index]);
dimitryjl23 8:24c18eecc442 229 buffer_index++;
dimitryjl23 8:24c18eecc442 230 //pc.printf("%d\n",value);
dimitryjl23 8:24c18eecc442 231 //buffer_index++;
dimitryjl23 8:24c18eecc442 232 if(buffer_index == BUFFER_SIZE) {
dimitryjl23 8:24c18eecc442 233 //fast fourier tranform function here
dimitryjl23 8:24c18eecc442 234 vRealFFT(buffer, 4);
dimitryjl23 8:24c18eecc442 235 display_fft(buffer);
dimitryjl23 8:24c18eecc442 236 buffer_index = 0;
dimitryjl23 8:24c18eecc442 237 memset(buffer,0,sizeof(buffer));
dimitryjl23 8:24c18eecc442 238
dimitryjl23 8:24c18eecc442 239 }
shyamgatech 5:598d94b45bad 240
shyamgatech 5:598d94b45bad 241 }
annieluo2 3:3dbf078989b1 242
dimitryjl23 8:24c18eecc442 243 Thread::wait(300);
dimitryjl23 2:a6e81c45ef48 244 }
shyamgatech 5:598d94b45bad 245
annieluo2 0:d6c9b09b4042 246 }
annieluo2 0:d6c9b09b4042 247
annieluo2 0:d6c9b09b4042 248 void speaker_thread(void const* args)
annieluo2 0:d6c9b09b4042 249 {
shyamgatech 5:598d94b45bad 250 while(1) {
annieluo2 1:5dd6801bb0d6 251 // check helper function for new song in GUI
annieluo2 0:d6c9b09b4042 252 // grab file here and put together string
annieluo2 0:d6c9b09b4042 253 // string song_title = "/sd/" + "" + ".wav";
shyamgatech 5:598d94b45bad 254
shyamgatech 5:598d94b45bad 255
dimitryjl23 8:24c18eecc442 256 if(play == true)
dimitryjl23 8:24c18eecc442 257 {
dimitryjl23 8:24c18eecc442 258 //speaker_lock.lock();
annieluo2 0:d6c9b09b4042 259 FILE *wave_file;
shyamgatech 5:598d94b45bad 260 dir = "/sd/" + song + ".wav";
dimitryjl23 8:24c18eecc442 261
dimitryjl23 8:24c18eecc442 262 file_lock.lock();
shyamgatech 5:598d94b45bad 263 wave_file=fopen(dir.c_str(),"r");
dimitryjl23 8:24c18eecc442 264 file_lock.unlock();
dimitryjl23 8:24c18eecc442 265
dimitryjl23 8:24c18eecc442 266 waver.play(wave_file);
shyamgatech 5:598d94b45bad 267
dimitryjl23 8:24c18eecc442 268 file_lock.lock();
annieluo2 0:d6c9b09b4042 269 fclose(wave_file);
dimitryjl23 8:24c18eecc442 270 file_lock.unlock();
dimitryjl23 8:24c18eecc442 271 //speaker_lock.unlock();
dimitryjl23 8:24c18eecc442 272 }
dimitryjl23 8:24c18eecc442 273 Thread::wait(1000);
annieluo2 0:d6c9b09b4042 274 }
annieluo2 0:d6c9b09b4042 275 }
shyamgatech 5:598d94b45bad 276
annieluo2 0:d6c9b09b4042 277
annieluo2 0:d6c9b09b4042 278 int main()
annieluo2 0:d6c9b09b4042 279 {
dimitryjl23 8:24c18eecc442 280 //sd.mount();
dimitryjl23 8:24c18eecc442 281 pc.printf("I have updated\n");
annieluo2 0:d6c9b09b4042 282 Thread th1(speaker_thread);
annieluo2 1:5dd6801bb0d6 283 Thread th2(display_thread);
shyamgatech 5:598d94b45bad 284 char c;
annieluo2 0:d6c9b09b4042 285 while(1) {
dimitryjl23 8:24c18eecc442 286 /*myled = 1;
annieluo2 1:5dd6801bb0d6 287 wait(0.2);
annieluo2 1:5dd6801bb0d6 288 myled = 0;
annieluo2 1:5dd6801bb0d6 289 wait(0.2);
dimitryjl23 8:24c18eecc442 290 */
shyamgatech 5:598d94b45bad 291 while(!pc.readable()) {
shyamgatech 5:598d94b45bad 292 Thread::wait(1);
shyamgatech 5:598d94b45bad 293 }
shyamgatech 5:598d94b45bad 294 if (pc.getc() == '!') {
shyamgatech 5:598d94b45bad 295 c = pc.getc();
shyamgatech 5:598d94b45bad 296 switch(c) {
shyamgatech 5:598d94b45bad 297 case '1':
shyamgatech 5:598d94b45bad 298 song = "africa-toto";
dimitryjl23 8:24c18eecc442 299
shyamgatech 5:598d94b45bad 300 break;
shyamgatech 5:598d94b45bad 301 case '2':
shyamgatech 5:598d94b45bad 302 song = "around_the_world-atc";
dimitryjl23 8:24c18eecc442 303 song_data_length = NUM_ELEMENTS_AROUND_THE_WORLD;
dimitryjl23 8:24c18eecc442 304 song_data = data_around_the_world;
shyamgatech 5:598d94b45bad 305 break;
shyamgatech 5:598d94b45bad 306 case '3':
shyamgatech 5:598d94b45bad 307 song = "beautiful_life-ace_of_base";
shyamgatech 5:598d94b45bad 308 break;
shyamgatech 5:598d94b45bad 309 case '4':
shyamgatech 5:598d94b45bad 310 song = "dont_speak-no_doubt";
dimitryjl23 8:24c18eecc442 311 song_data_length = NUM_ELEMENTS_DONT_SPEAK_NO_DOUBT;
dimitryjl23 8:24c18eecc442 312 song_data = data_dont_speak_no_doubt;
shyamgatech 5:598d94b45bad 313 break;
shyamgatech 5:598d94b45bad 314 case '5':
shyamgatech 5:598d94b45bad 315 song = "my-love";
dimitryjl23 8:24c18eecc442 316 song_data_length = NUM_ELEMENTS_MY_LOVE;
dimitryjl23 8:24c18eecc442 317 song_data = data_my_love;
shyamgatech 5:598d94b45bad 318 break;
shyamgatech 5:598d94b45bad 319 case '6':
shyamgatech 5:598d94b45bad 320 song = "Song1_test";
shyamgatech 5:598d94b45bad 321 break;
shyamgatech 5:598d94b45bad 322 case 'P':
shyamgatech 5:598d94b45bad 323 // wave_player plays
shyamgatech 5:598d94b45bad 324 play = true;
dimitryjl23 8:24c18eecc442 325 led =1;
shyamgatech 5:598d94b45bad 326 break;
shyamgatech 5:598d94b45bad 327 case 'S':
shyamgatech 5:598d94b45bad 328 // wave_player stops
shyamgatech 5:598d94b45bad 329 play = false;
dimitryjl23 8:24c18eecc442 330 //led = 0;
shyamgatech 5:598d94b45bad 331 break;
shyamgatech 5:598d94b45bad 332 default:
shyamgatech 5:598d94b45bad 333 break;
shyamgatech 5:598d94b45bad 334 }
shyamgatech 5:598d94b45bad 335 }
annieluo2 0:d6c9b09b4042 336 Thread::wait(100);
annieluo2 0:d6c9b09b4042 337 }
shyamgatech 5:598d94b45bad 338
annieluo2 0:d6c9b09b4042 339 }