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@6:e4aba042979b, 2019-12-05 (annotated)
- Committer:
- nhummel3
- Date:
- Thu Dec 05 15:30:50 2019 +0000
- Revision:
- 6:e4aba042979b
- Parent:
- 5:18b2796e4847
- Child:
- 7:2e274cc18797
ECE 4180 Final Project. Sound and Bluetooth activated coffee maker;
Who changed what in which revision?
User | Revision | Line number | New 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 | 6:e4aba042979b | 28 | |
nhummel3 | 6:e4aba042979b | 29 | //Declarations |
nhummel3 | 6:e4aba042979b | 30 | Ticker sampletick; //audio interrupt |
nhummel3 | 6:e4aba042979b | 31 | uLCD_4DGL uLCD(p9,p10,p11); |
nhummel3 | 6:e4aba042979b | 32 | AnalogIn Therm0(p18); |
nhummel3 | 6:e4aba042979b | 33 | AnalogIn Therm1(p19); |
nhummel3 | 6:e4aba042979b | 34 | DigitalOut key(p20); |
nhummel3 | 6:e4aba042979b | 35 | |
4180_1 | 4:79863d2ea5a0 | 36 | PwmOut Speaker(p26); |
4180_1 | 4:79863d2ea5a0 | 37 | PwmOut RGBLED_r(p23); |
nhummel3 | 6:e4aba042979b | 38 | PwmOut RGBLED_g(p22); |
nhummel3 | 6:e4aba042979b | 39 | PwmOut RGBLED_b(p21); |
nhummel3 | 6:e4aba042979b | 40 | DigitalIn user_button(p12); |
nhummel3 | 6:e4aba042979b | 41 | Serial blue(p28,p27); |
dreschpe | 2:a69c8c5f5b03 | 42 | |
nhummel3 | 6:e4aba042979b | 43 | // Mutex declarations |
dreschpe | 1:1c6a9eaf55b5 | 44 | Mutex lcd_mutex; |
nhummel3 | 6:e4aba042979b | 45 | Mutex leds_mutex; |
nhummel3 | 6:e4aba042979b | 46 | Mutex bmut; |
nhummel3 | 6:e4aba042979b | 47 | Mutex mic_mutex; |
nhummel3 | 6:e4aba042979b | 48 | Mutex trigger_mutex; |
dreschpe | 0:f6a57b843f79 | 49 | |
nhummel3 | 6:e4aba042979b | 50 | volatile float r = 0.0; |
nhummel3 | 6:e4aba042979b | 51 | volatile float g = 0.0; |
nhummel3 | 6:e4aba042979b | 52 | volatile float b = 0.0; |
nhummel3 | 6:e4aba042979b | 53 | |
nhummel3 | 6:e4aba042979b | 54 | //Audio ISR |
nhummel3 | 5:18b2796e4847 | 55 | void audio_sample () |
dreschpe | 0:f6a57b843f79 | 56 | { |
nhummel3 | 6:e4aba042979b | 57 | //if noise flag set, play audio |
nhummel3 | 6:e4aba042979b | 58 | if(noise){ |
nhummel3 | 6:e4aba042979b | 59 | Speaker = fire_truck_data[i%NUM_ELEMENTS_FIRE]/255.0;//scale to 0.0 to 1.0 for PWM |
nhummel3 | 6:e4aba042979b | 60 | i++; |
nhummel3 | 6:e4aba042979b | 61 | } else { |
nhummel3 | 6:e4aba042979b | 62 | Speaker = 0; |
dreschpe | 0:f6a57b843f79 | 63 | } |
dreschpe | 0:f6a57b843f79 | 64 | } |
dreschpe | 0:f6a57b843f79 | 65 | |
nhummel3 | 6:e4aba042979b | 66 | // Temporary debug variables |
nhummel3 | 6:e4aba042979b | 67 | int tmp = 0; |
nhummel3 | 6:e4aba042979b | 68 | int tmp2 = 0; |
nhummel3 | 6:e4aba042979b | 69 | int num_trig = 0; |
nhummel3 | 6:e4aba042979b | 70 | |
nhummel3 | 6:e4aba042979b | 71 | //Microphone class |
nhummel3 | 6:e4aba042979b | 72 | class microphone |
nhummel3 | 6:e4aba042979b | 73 | { |
nhummel3 | 6:e4aba042979b | 74 | public : |
nhummel3 | 6:e4aba042979b | 75 | microphone(PinName pin); |
nhummel3 | 6:e4aba042979b | 76 | float read(); |
nhummel3 | 6:e4aba042979b | 77 | operator float (); |
nhummel3 | 6:e4aba042979b | 78 | private : |
nhummel3 | 6:e4aba042979b | 79 | AnalogIn _pin; |
nhummel3 | 6:e4aba042979b | 80 | }; |
nhummel3 | 6:e4aba042979b | 81 | microphone::microphone (PinName pin): |
nhummel3 | 6:e4aba042979b | 82 | _pin(pin) |
nhummel3 | 6:e4aba042979b | 83 | { |
nhummel3 | 6:e4aba042979b | 84 | } |
nhummel3 | 6:e4aba042979b | 85 | float microphone::read() |
nhummel3 | 6:e4aba042979b | 86 | { |
nhummel3 | 6:e4aba042979b | 87 | return _pin.read(); |
nhummel3 | 6:e4aba042979b | 88 | } |
nhummel3 | 6:e4aba042979b | 89 | inline microphone::operator float () |
nhummel3 | 6:e4aba042979b | 90 | { |
nhummel3 | 6:e4aba042979b | 91 | return _pin.read(); |
nhummel3 | 6:e4aba042979b | 92 | } |
nhummel3 | 6:e4aba042979b | 93 | |
nhummel3 | 6:e4aba042979b | 94 | microphone mymicrophone(p16); |
nhummel3 | 6:e4aba042979b | 95 | |
nhummel3 | 6:e4aba042979b | 96 | |
nhummel3 | 5:18b2796e4847 | 97 | // |
nhummel3 | 6:e4aba042979b | 98 | // Thread 1 |
nhummel3 | 6:e4aba042979b | 99 | // Debug thread for microphone on LCD |
nhummel3 | 6:e4aba042979b | 100 | void thread1(void const *args) |
nhummel3 | 6:e4aba042979b | 101 | { |
nhummel3 | 6:e4aba042979b | 102 | int i2; |
nhummel3 | 6:e4aba042979b | 103 | while(true) { // thread loop |
nhummel3 | 6:e4aba042979b | 104 | lcd_mutex.lock(); |
nhummel3 | 6:e4aba042979b | 105 | |
nhummel3 | 6:e4aba042979b | 106 | //uLCD.cls(); |
nhummel3 | 6:e4aba042979b | 107 | mic_mutex.lock(); |
nhummel3 | 6:e4aba042979b | 108 | tmp = int(abs((mymicrophone - (0.67/3.3)))*500.0); |
nhummel3 | 6:e4aba042979b | 109 | //tmp2 = user_button; |
nhummel3 | 6:e4aba042979b | 110 | mic_mutex.unlock(); |
nhummel3 | 6:e4aba042979b | 111 | trigger_mutex.lock(); |
nhummel3 | 6:e4aba042979b | 112 | uLCD.printf("%d",trigger); |
nhummel3 | 6:e4aba042979b | 113 | trigger_mutex.unlock(); |
nhummel3 | 6:e4aba042979b | 114 | |
nhummel3 | 6:e4aba042979b | 115 | lcd_mutex.unlock(); |
nhummel3 | 6:e4aba042979b | 116 | Thread::wait(100); |
nhummel3 | 6:e4aba042979b | 117 | } |
nhummel3 | 6:e4aba042979b | 118 | } |
nhummel3 | 5:18b2796e4847 | 119 | // |
nhummel3 | 5:18b2796e4847 | 120 | //// Thread 3 |
nhummel3 | 6:e4aba042979b | 121 | //// Blink LED |
nhummel3 | 6:e4aba042979b | 122 | void thread3(void const *args) |
nhummel3 | 6:e4aba042979b | 123 | { |
nhummel3 | 6:e4aba042979b | 124 | while(1) { |
nhummel3 | 6:e4aba042979b | 125 | // if blink flag is set then blink red LED with PWM fade |
nhummel3 | 6:e4aba042979b | 126 | if(blink) { |
nhummel3 | 6:e4aba042979b | 127 | leds_mutex.lock(); |
nhummel3 | 6:e4aba042979b | 128 | RGBLED_g = 0; |
nhummel3 | 6:e4aba042979b | 129 | RGBLED_b = 0; |
nhummel3 | 6:e4aba042979b | 130 | leds_mutex.unlock(); |
nhummel3 | 6:e4aba042979b | 131 | for(float j = 0.2; j<= 1.0; j+=0.1) { |
nhummel3 | 6:e4aba042979b | 132 | leds_mutex.lock(); |
nhummel3 | 6:e4aba042979b | 133 | RGBLED_r = j; |
nhummel3 | 6:e4aba042979b | 134 | leds_mutex.unlock(); |
nhummel3 | 6:e4aba042979b | 135 | Thread::wait(20); |
nhummel3 | 6:e4aba042979b | 136 | } |
nhummel3 | 6:e4aba042979b | 137 | Thread::wait(100); |
nhummel3 | 6:e4aba042979b | 138 | for(float j = 1.0; j>= 0.2; j-=0.1) { |
nhummel3 | 6:e4aba042979b | 139 | leds_mutex.lock(); |
nhummel3 | 6:e4aba042979b | 140 | RGBLED_r = j; |
nhummel3 | 6:e4aba042979b | 141 | leds_mutex.unlock(); |
nhummel3 | 6:e4aba042979b | 142 | Thread::wait(10); |
nhummel3 | 6:e4aba042979b | 143 | } |
nhummel3 | 6:e4aba042979b | 144 | Thread::wait(100); // value of pot1 / 100 |
nhummel3 | 6:e4aba042979b | 145 | } |
nhummel3 | 6:e4aba042979b | 146 | } |
nhummel3 | 6:e4aba042979b | 147 | } |
nhummel3 | 5:18b2796e4847 | 148 | // |
nhummel3 | 5:18b2796e4847 | 149 | //// Thread 4 |
nhummel3 | 6:e4aba042979b | 150 | //// Microphone parser, triggers coffee pot when over certain value |
nhummel3 | 6:e4aba042979b | 151 | void thread4(void const *args) |
nhummel3 | 6:e4aba042979b | 152 | { |
nhummel3 | 6:e4aba042979b | 153 | while(1) { |
nhummel3 | 6:e4aba042979b | 154 | //read in, subtract 0.67 DC bias, take absolute value, and scale up .1Vpp to 15 for builtin LED display |
nhummel3 | 6:e4aba042979b | 155 | mic_mutex.lock(); |
nhummel3 | 6:e4aba042979b | 156 | tmp = int(abs((mymicrophone - (0.67/3.3)))*500.0); |
nhummel3 | 6:e4aba042979b | 157 | mic_mutex.unlock(); |
nhummel3 | 6:e4aba042979b | 158 | if(tmp > 9) { |
nhummel3 | 6:e4aba042979b | 159 | num_trig = num_trig+1; |
nhummel3 | 6:e4aba042979b | 160 | //only trigger if get sample above value 3 times in a row |
nhummel3 | 6:e4aba042979b | 161 | if(num_trig == 3){ |
nhummel3 | 6:e4aba042979b | 162 | trigger_mutex.lock(); |
nhummel3 | 6:e4aba042979b | 163 | trigger = 1; |
nhummel3 | 6:e4aba042979b | 164 | trigger_mutex.unlock(); |
nhummel3 | 6:e4aba042979b | 165 | tmp = 0; |
nhummel3 | 6:e4aba042979b | 166 | Thread::wait(200); |
nhummel3 | 6:e4aba042979b | 167 | } |
nhummel3 | 6:e4aba042979b | 168 | } else { |
nhummel3 | 6:e4aba042979b | 169 | num_trig = 0; |
nhummel3 | 6:e4aba042979b | 170 | } |
nhummel3 | 6:e4aba042979b | 171 | } |
nhummel3 | 6:e4aba042979b | 172 | } |
nhummel3 | 6:e4aba042979b | 173 | // Thread 5 |
nhummel3 | 6:e4aba042979b | 174 | // Bluetooth parser to trigger coffee pot |
nhummel3 | 6:e4aba042979b | 175 | void thread5(void const *args) |
nhummel3 | 6:e4aba042979b | 176 | { |
nhummel3 | 6:e4aba042979b | 177 | while(true) { |
nhummel3 | 6:e4aba042979b | 178 | //if recieve any button from bluetooth, increment tmp_blue |
nhummel3 | 6:e4aba042979b | 179 | if (blue.readable()){ |
nhummel3 | 6:e4aba042979b | 180 | bmut.lock(); |
nhummel3 | 6:e4aba042979b | 181 | if (blue.getc() == '!') { |
nhummel3 | 6:e4aba042979b | 182 | if (blue.getc() == 'B') { |
nhummel3 | 6:e4aba042979b | 183 | tmp_blue++; |
nhummel3 | 6:e4aba042979b | 184 | } |
nhummel3 | 6:e4aba042979b | 185 | } |
nhummel3 | 6:e4aba042979b | 186 | |
nhummel3 | 6:e4aba042979b | 187 | bmut.unlock(); |
nhummel3 | 6:e4aba042979b | 188 | } |
nhummel3 | 6:e4aba042979b | 189 | // if receive message from bluetooth twice in a row, trigger coffee pot |
nhummel3 | 6:e4aba042979b | 190 | if(tmp_blue == 2) { |
nhummel3 | 6:e4aba042979b | 191 | trigger_mutex.lock(); |
nhummel3 | 6:e4aba042979b | 192 | trigger = 1; |
nhummel3 | 6:e4aba042979b | 193 | trigger_mutex.unlock(); |
nhummel3 | 6:e4aba042979b | 194 | tmp_blue = 0; |
nhummel3 | 6:e4aba042979b | 195 | } |
nhummel3 | 6:e4aba042979b | 196 | } |
nhummel3 | 6:e4aba042979b | 197 | } |
4180_1 | 4:79863d2ea5a0 | 198 | |
dreschpe | 0:f6a57b843f79 | 199 | int main() |
dreschpe | 0:f6a57b843f79 | 200 | { |
nhummel3 | 6:e4aba042979b | 201 | // ---------Enter Initialize State--------- |
nhummel3 | 6:e4aba042979b | 202 | //set key to high initially to not trigger coffee pot |
nhummel3 | 6:e4aba042979b | 203 | key = 1; |
nhummel3 | 6:e4aba042979b | 204 | RGBLED_r = 0.5; |
nhummel3 | 6:e4aba042979b | 205 | wait(0.1); |
nhummel3 | 6:e4aba042979b | 206 | //set baud rate |
nhummel3 | 6:e4aba042979b | 207 | blue.baud(9600); |
nhummel3 | 6:e4aba042979b | 208 | //set speaker period |
nhummel3 | 5:18b2796e4847 | 209 | Speaker.period(1.0/250000.0); |
nhummel3 | 5:18b2796e4847 | 210 | //Thread t1(thread1); //start thread1 |
dreschpe | 0:f6a57b843f79 | 211 | |
nhummel3 | 6:e4aba042979b | 212 | Thread t3(thread3); //start thread3 |
nhummel3 | 6:e4aba042979b | 213 | Thread t4(thread4); //start thread4 |
nhummel3 | 6:e4aba042979b | 214 | Thread t5(thread5); //start thread5 |
nhummel3 | 6:e4aba042979b | 215 | |
nhummel3 | 6:e4aba042979b | 216 | //set button mode |
nhummel3 | 6:e4aba042979b | 217 | user_button.mode(PullUp); |
nhummel3 | 6:e4aba042979b | 218 | wait(0.001); |
nhummel3 | 6:e4aba042979b | 219 | |
nhummel3 | 6:e4aba042979b | 220 | //---------Enter Ready State--------- |
nhummel3 | 6:e4aba042979b | 221 | |
nhummel3 | 6:e4aba042979b | 222 | //lcd_mutex.lock(); |
nhummel3 | 6:e4aba042979b | 223 | uLCD.cls(); |
nhummel3 | 6:e4aba042979b | 224 | uLCD.printf("READY"); |
nhummel3 | 6:e4aba042979b | 225 | //lcd_mutex.unlock(); |
nhummel3 | 6:e4aba042979b | 226 | |
nhummel3 | 6:e4aba042979b | 227 | //attach audio interrupt |
nhummel3 | 6:e4aba042979b | 228 | sampletick.attach(&audio_sample, 1.0 / sample_freq); |
nhummel3 | 5:18b2796e4847 | 229 | |
nhummel3 | 6:e4aba042979b | 230 | while(1){ |
nhummel3 | 6:e4aba042979b | 231 | Thread::wait(100); |
nhummel3 | 6:e4aba042979b | 232 | //set mutex lock for trigger |
nhummel3 | 6:e4aba042979b | 233 | trigger_mutex.lock(); |
nhummel3 | 6:e4aba042979b | 234 | //if trigger flag is set, start coffee pot |
nhummel3 | 6:e4aba042979b | 235 | if(trigger) { |
nhummel3 | 6:e4aba042979b | 236 | // ---------Enter Brewing State--------- |
nhummel3 | 6:e4aba042979b | 237 | |
nhummel3 | 6:e4aba042979b | 238 | //write to LCD |
nhummel3 | 6:e4aba042979b | 239 | //lcd_mutex.lock(); |
nhummel3 | 6:e4aba042979b | 240 | uLCD.cls(); |
nhummel3 | 6:e4aba042979b | 241 | uLCD.printf("BREWING..."); |
nhummel3 | 6:e4aba042979b | 242 | //lcd_mutex.unlock(); |
nhummel3 | 6:e4aba042979b | 243 | |
nhummel3 | 6:e4aba042979b | 244 | //set microphone mutex lock to prevent false trigger while running |
nhummel3 | 6:e4aba042979b | 245 | mic_mutex.lock(); |
nhummel3 | 6:e4aba042979b | 246 | |
nhummel3 | 6:e4aba042979b | 247 | // set coffee pot trigger to low |
nhummel3 | 6:e4aba042979b | 248 | key = 0; |
nhummel3 | 6:e4aba042979b | 249 | //changing LED to indicate trigger |
nhummel3 | 6:e4aba042979b | 250 | leds_mutex.lock(); |
nhummel3 | 6:e4aba042979b | 251 | RGBLED_r = 0; |
nhummel3 | 6:e4aba042979b | 252 | RGBLED_b = 0; |
nhummel3 | 6:e4aba042979b | 253 | RGBLED_g = 1; |
nhummel3 | 6:e4aba042979b | 254 | leds_mutex.unlock(); |
nhummel3 | 6:e4aba042979b | 255 | Thread::wait(200); |
nhummel3 | 6:e4aba042979b | 256 | |
nhummel3 | 6:e4aba042979b | 257 | // set coffee pot trigger back to high after pulse |
nhummel3 | 6:e4aba042979b | 258 | key = 1; |
nhummel3 | 6:e4aba042979b | 259 | |
nhummel3 | 6:e4aba042979b | 260 | // change LED to indicate running |
nhummel3 | 6:e4aba042979b | 261 | leds_mutex.lock(); |
nhummel3 | 6:e4aba042979b | 262 | RGBLED_g = 0; |
nhummel3 | 6:e4aba042979b | 263 | RGBLED_b = 1; |
nhummel3 | 6:e4aba042979b | 264 | leds_mutex.unlock(); |
nhummel3 | 6:e4aba042979b | 265 | wait(100); |
nhummel3 | 6:e4aba042979b | 266 | |
nhummel3 | 6:e4aba042979b | 267 | // ---------Enter Reset State--------- |
nhummel3 | 6:e4aba042979b | 268 | |
nhummel3 | 6:e4aba042979b | 269 | // set noise flag high |
nhummel3 | 6:e4aba042979b | 270 | noise = 1; |
nhummel3 | 6:e4aba042979b | 271 | //lcd_mutex.lock(); |
nhummel3 | 6:e4aba042979b | 272 | uLCD.cls(); |
nhummel3 | 6:e4aba042979b | 273 | uLCD.printf("COFFEE READY\n\n\rPLEASE RESET\n\rMACHINE"); |
nhummel3 | 6:e4aba042979b | 274 | //lcd_mutex.unlock(); |
nhummel3 | 6:e4aba042979b | 275 | |
nhummel3 | 6:e4aba042979b | 276 | // set led blink flag high |
nhummel3 | 6:e4aba042979b | 277 | blink = 1; |
nhummel3 | 6:e4aba042979b | 278 | |
nhummel3 | 6:e4aba042979b | 279 | //wait for reset button press from user |
nhummel3 | 6:e4aba042979b | 280 | while(reset) { |
nhummel3 | 6:e4aba042979b | 281 | reset = user_button; |
nhummel3 | 6:e4aba042979b | 282 | Thread::wait(1); |
nhummel3 | 6:e4aba042979b | 283 | } |
nhummel3 | 6:e4aba042979b | 284 | |
nhummel3 | 6:e4aba042979b | 285 | //---------Enter Ready State--------- |
nhummel3 | 6:e4aba042979b | 286 | |
nhummel3 | 6:e4aba042979b | 287 | // set led blink flag low |
nhummel3 | 6:e4aba042979b | 288 | blink = 0; |
nhummel3 | 6:e4aba042979b | 289 | //lcd_mutex.lock(); |
nhummel3 | 6:e4aba042979b | 290 | uLCD.cls(); |
nhummel3 | 6:e4aba042979b | 291 | uLCD.printf("READY"); |
nhummel3 | 6:e4aba042979b | 292 | //lcd_mutex.unlock(); |
nhummel3 | 6:e4aba042979b | 293 | |
nhummel3 | 6:e4aba042979b | 294 | // set noise flag low |
nhummel3 | 6:e4aba042979b | 295 | noise = 0; |
nhummel3 | 6:e4aba042979b | 296 | // set reset flag high |
nhummel3 | 6:e4aba042979b | 297 | reset = 1; |
nhummel3 | 6:e4aba042979b | 298 | |
nhummel3 | 6:e4aba042979b | 299 | // change leds to indicate ready state |
nhummel3 | 6:e4aba042979b | 300 | leds_mutex.lock(); |
nhummel3 | 6:e4aba042979b | 301 | RGBLED_g = 0; |
nhummel3 | 6:e4aba042979b | 302 | RGBLED_b = 0; |
nhummel3 | 6:e4aba042979b | 303 | RGBLED_r = 1; |
nhummel3 | 6:e4aba042979b | 304 | leds_mutex.unlock(); |
nhummel3 | 6:e4aba042979b | 305 | |
nhummel3 | 6:e4aba042979b | 306 | // set trigger flag low |
nhummel3 | 6:e4aba042979b | 307 | trigger = 0; |
nhummel3 | 6:e4aba042979b | 308 | mic_mutex.unlock(); |
nhummel3 | 6:e4aba042979b | 309 | } |
nhummel3 | 6:e4aba042979b | 310 | trigger_mutex.unlock(); |
dreschpe | 0:f6a57b843f79 | 311 | } |
nhummel3 | 6:e4aba042979b | 312 | } |