Chad Miller / Mbed 2 deprecated WeatherBalloon4180

Final project for ECE 4180.

Dependencies:   GPS SDFileSystem mbed-rtos mbed MPL3115A2

Fork of GPS_HelloWorld by kris gjika

main.cpp@5:c3e1fc7fa00d, 2015-12-01 (annotated)

Committer:
cmiller86
Date:
Tue Dec 01 20:38:27 2015 +0000
Revision:
5:c3e1fc7fa00d
Parent:
4:ebf8c354c758 
Last requirements added

Who changed what in which revision?

UserRevisionLine numberNew contents of line
simon 0:6b7345059afe 1 #include "mbed.h"
cmiller86 2:21e4b9092bb2 2 #include "rtos.h"
cmiller86 2:21e4b9092bb2 3
simon 0:6b7345059afe 4 #include "GPS.h"
cmiller86 5:c3e1fc7fa00d 5 #include "MPL3115A2.h"
cmiller86 2:21e4b9092bb2 6 #include "SDFileSystem.h"
simon 0:6b7345059afe 7
cmiller86 3:b490294520d5 8 #define PC_DEBUG
cmiller86 3:b490294520d5 9
cmiller86 5:c3e1fc7fa00d 10 /*
cmiller86 5:c3e1fc7fa00d 11 * You must define the minimum and maximum latitudes
cmiller86 5:c3e1fc7fa00d 12 * and longitudes yourself in these four macros.
cmiller86 5:c3e1fc7fa00d 13 *
cmiller86 5:c3e1fc7fa00d 14 * For reference: the coordinates right outide Van Leer
cmiller86 5:c3e1fc7fa00d 15 * (Fishbowl) are:
cmiller86 5:c3e1fc7fa00d 16 *
cmiller86 5:c3e1fc7fa00d 17 * Longitude = -140.400406
cmiller86 5:c3e1fc7fa00d 18 * Latitude = 33.772503
cmiller86 5:c3e1fc7fa00d 19 */
cmiller86 5:c3e1fc7fa00d 20 #define MIN_LATITUDE -145
cmiller86 5:c3e1fc7fa00d 21 #define MAX_LATITUDE -135
cmiller86 5:c3e1fc7fa00d 22 #define MIN_LONGITUDE 28
cmiller86 5:c3e1fc7fa00d 23 #define MAX_LONGITUDE 38
cmiller86 5:c3e1fc7fa00d 24
simon 0:6b7345059afe 25 Serial pc(USBTX, USBRX);
cmiller86 2:21e4b9092bb2 26 SDFileSystem sd(p5, p6, p7, p8, "sd");
simon 0:6b7345059afe 27 GPS gps(p9, p10);
cmiller86 2:21e4b9092bb2 28
cmiller86 2:21e4b9092bb2 29 AnalogIn temp1(p18);
cmiller86 2:21e4b9092bb2 30 AnalogIn temp2(p19);
cmiller86 2:21e4b9092bb2 31 AnalogIn temp3(p20);
cmiller86 2:21e4b9092bb2 32
cmiller86 5:c3e1fc7fa00d 33 DigitalIn dtmf1(p11);
cmiller86 5:c3e1fc7fa00d 34 DigitalIn dtmf2(p12);
cmiller86 5:c3e1fc7fa00d 35 DigitalIn dtmf3(p13);
cmiller86 5:c3e1fc7fa00d 36 DigitalIn log_switch(p21);
cmiller86 2:21e4b9092bb2 37
Gjika 1:2c4f640a8104 38 DigitalOut led1(LED1);
cmiller86 5:c3e1fc7fa00d 39 DigitalOut led2(LED2);
cmiller86 5:c3e1fc7fa00d 40 DigitalOut relay(p14);
cmiller86 2:21e4b9092bb2 41
cmiller86 5:c3e1fc7fa00d 42 I2C i2c(p28, p27);
cmiller86 5:c3e1fc7fa00d 43 MPL3115A2 altimeter(&i2c, &pc);
cmiller86 5:c3e1fc7fa00d 44
cmiller86 5:c3e1fc7fa00d 45 bool attempted = false, cutdown = false, gps_locked = false;
cmiller86 5:c3e1fc7fa00d 46 bool log_open = log_switch;
cmiller86 3:b490294520d5 47 float tempF1, tempF2, tempF3;
cmiller86 2:21e4b9092bb2 48
cmiller86 2:21e4b9092bb2 49 FILE *sdout;
cmiller86 3:b490294520d5 50 Timer t;
cmiller86 3:b490294520d5 51 Mutex log_mutex;
simon 0:6b7345059afe 52
cmiller86 5:c3e1fc7fa00d 53 Altitude alt_altitude;
cmiller86 5:c3e1fc7fa00d 54 Temperature alt_temperature;
cmiller86 5:c3e1fc7fa00d 55 Pressure alt_pressure;
cmiller86 5:c3e1fc7fa00d 56
cmiller86 2:21e4b9092bb2 57 void init()
cmiller86 2:21e4b9092bb2 58 {
cmiller86 2:21e4b9092bb2 59 t.start();
cmiller86 3:b490294520d5 60
cmiller86 3:b490294520d5 61 led1 = 0;
cmiller86 2:21e4b9092bb2 62 relay = 0;
cmiller86 2:21e4b9092bb2 63
cmiller86 5:c3e1fc7fa00d 64 altimeter.init();
cmiller86 5:c3e1fc7fa00d 65 altimeter.setOffsetAltitude(0);
cmiller86 5:c3e1fc7fa00d 66 altimeter.setOffsetTemperature(0);
cmiller86 5:c3e1fc7fa00d 67 altimeter.setOffsetPressure(0);
cmiller86 5:c3e1fc7fa00d 68
cmiller86 2:21e4b9092bb2 69 mkdir("/sd/weather_balloon", 0777);
cmiller86 2:21e4b9092bb2 70 }
cmiller86 2:21e4b9092bb2 71
cmiller86 4:ebf8c354c758 72 void update_gps(void const *args)
cmiller86 2:21e4b9092bb2 73 {
cmiller86 3:b490294520d5 74 while(true)
cmiller86 2:21e4b9092bb2 75 {
cmiller86 5:c3e1fc7fa00d 76 gps_locked = gps.sample();
cmiller86 5:c3e1fc7fa00d 77 led1 = gps_locked;
Gjika 1:2c4f640a8104 78
cmiller86 3:b490294520d5 79 Thread::wait(250);
cmiller86 3:b490294520d5 80 }
cmiller86 3:b490294520d5 81 }
cmiller86 3:b490294520d5 82
cmiller86 4:ebf8c354c758 83 void update_temperature(void const *args)
cmiller86 3:b490294520d5 84 {
cmiller86 3:b490294520d5 85 float tempC1, tempC2, tempC3;
cmiller86 3:b490294520d5 86
cmiller86 3:b490294520d5 87 while(true)
cmiller86 3:b490294520d5 88 {
cmiller86 2:21e4b9092bb2 89 tempC1 = ((temp1 * 3.3) - 0.600) * 100.0;
cmiller86 2:21e4b9092bb2 90 tempC2 = ((temp2 * 3.3) - 0.600) * 100.0;
cmiller86 2:21e4b9092bb2 91 tempC3 = ((temp3 * 3.3) - 0.600) * 100.0;
cmiller86 2:21e4b9092bb2 92 tempF1 = (9.0 * tempC1) / 5.0 + 32;
cmiller86 2:21e4b9092bb2 93 tempF2 = (9.0 * tempC2) / 5.0 + 32;
cmiller86 2:21e4b9092bb2 94 tempF3 = (9.0 * tempC3) / 5.0 + 32;
Gjika 1:2c4f640a8104 95
cmiller86 3:b490294520d5 96 Thread::wait(250);
cmiller86 3:b490294520d5 97 }
cmiller86 3:b490294520d5 98 }
cmiller86 3:b490294520d5 99
cmiller86 5:c3e1fc7fa00d 100 void update_altimeter(void const *args)
cmiller86 5:c3e1fc7fa00d 101 {
cmiller86 5:c3e1fc7fa00d 102 while(true)
cmiller86 5:c3e1fc7fa00d 103 {
cmiller86 5:c3e1fc7fa00d 104 altimeter.readAltitude(&alt_altitude);
cmiller86 5:c3e1fc7fa00d 105 altimeter.readTemperature(&alt_temperature);
cmiller86 5:c3e1fc7fa00d 106
cmiller86 5:c3e1fc7fa00d 107 altimeter.setModeStandby();
cmiller86 5:c3e1fc7fa00d 108 altimeter.setModeBarometer();
cmiller86 5:c3e1fc7fa00d 109 altimeter.setModeActive();
cmiller86 5:c3e1fc7fa00d 110 altimeter.readPressure(&alt_pressure);
cmiller86 5:c3e1fc7fa00d 111
cmiller86 5:c3e1fc7fa00d 112 altimeter.setModeStandby();
cmiller86 5:c3e1fc7fa00d 113 altimeter.setModeAltimeter();
cmiller86 5:c3e1fc7fa00d 114 altimeter.setModeActive();
cmiller86 5:c3e1fc7fa00d 115
cmiller86 5:c3e1fc7fa00d 116 Thread::wait(250);
cmiller86 5:c3e1fc7fa00d 117 }
cmiller86 5:c3e1fc7fa00d 118 }
cmiller86 5:c3e1fc7fa00d 119
cmiller86 4:ebf8c354c758 120 void write_to_log(void const *args)
cmiller86 3:b490294520d5 121 {
cmiller86 3:b490294520d5 122 while(true)
cmiller86 3:b490294520d5 123 {
cmiller86 5:c3e1fc7fa00d 124 if(log_switch)
cmiller86 5:c3e1fc7fa00d 125 {
cmiller86 5:c3e1fc7fa00d 126 log_mutex.lock();
cmiller86 5:c3e1fc7fa00d 127
cmiller86 5:c3e1fc7fa00d 128 if(!log_open)
cmiller86 5:c3e1fc7fa00d 129 {
cmiller86 5:c3e1fc7fa00d 130 sdout = fopen("/sd/weather_balloon/log.txt", "a");
cmiller86 5:c3e1fc7fa00d 131 log_open = true;
cmiller86 5:c3e1fc7fa00d 132 }
cmiller86 5:c3e1fc7fa00d 133
cmiller86 5:c3e1fc7fa00d 134 fprintf(sdout, "----- %f -----\r\n", t.read());
cmiller86 5:c3e1fc7fa00d 135 fprintf(sdout, "Long = %f\r\nLati = %f\r\n", gps.longitude, gps.latitude);
cmiller86 5:c3e1fc7fa00d 136 fprintf(sdout, "Temp1 = %f\r\nTemp2 = %f\r\nTemp3 = %f\r\n", -tempF1, -tempF2, -tempF3);
cmiller86 5:c3e1fc7fa00d 137 fprintf(sdout, "Altitude = %s ft, offset = 0x%X\r\n", alt_altitude.print(), altimeter.offsetAltitude());
cmiller86 5:c3e1fc7fa00d 138 fprintf(sdout, "Temperature = %s deg F, offset = 0x%X\r\n", alt_temperature.print(), altimeter.offsetTemperature());
cmiller86 5:c3e1fc7fa00d 139 //fprintf(sdout, "Pressure = %s Pa, offset = 0x%X\r\n", alt_pressure.print(), altimeter.offsetPressure());
cmiller86 5:c3e1fc7fa00d 140 fprintf(sdout, dtmf1 ? "DTMF 1 = True\r\n" : "DTMF 1 = False\r\n");
cmiller86 5:c3e1fc7fa00d 141 fprintf(sdout, dtmf2 ? "DTMF 2 = True\r\n" : "DTMF 2 = False\r\n");
cmiller86 5:c3e1fc7fa00d 142 fprintf(sdout, dtmf3 ? "DTMF 3 = True\r\n" : "DTMF 3 = False\r\n");
cmiller86 5:c3e1fc7fa00d 143
cmiller86 5:c3e1fc7fa00d 144 #ifdef PC_DEBUG
cmiller86 5:c3e1fc7fa00d 145 pc.printf("----- %f -----\r\n", t.read());
cmiller86 5:c3e1fc7fa00d 146 pc.printf("Long = %f\r\nLati = %f\r\n", gps.longitude, gps.latitude);
cmiller86 5:c3e1fc7fa00d 147 pc.printf("Temp1 = %f\r\nTemp2 = %f\r\nTemp3 = %f\r\n", -tempF1, -tempF2, -tempF3);
cmiller86 5:c3e1fc7fa00d 148 pc.printf("Altitude = %s ft, offset = 0x%X\r\n", alt_altitude.print(), altimeter.offsetAltitude());
cmiller86 5:c3e1fc7fa00d 149 pc.printf("Temperature = %s deg F, offset = 0x%X\r\n", alt_temperature.print(), altimeter.offsetTemperature());
cmiller86 5:c3e1fc7fa00d 150 //pc.printf("Pressure = %s Pa, offset = 0x%X\r\n", alt_pressure.print(), altimeter.offsetPressure());
cmiller86 5:c3e1fc7fa00d 151 pc.printf(dtmf1 ? "DTMF 1 = True\r\n" : "DTMF 1 = False\r\n");
cmiller86 5:c3e1fc7fa00d 152 pc.printf(dtmf2 ? "DTMF 2 = True\r\n" : "DTMF 2 = False\r\n");
cmiller86 5:c3e1fc7fa00d 153 pc.printf(dtmf3 ? "DTMF 3 = True\r\n" : "DTMF 3 = False\r\n");
cmiller86 5:c3e1fc7fa00d 154 #endif
cmiller86 5:c3e1fc7fa00d 155
cmiller86 5:c3e1fc7fa00d 156 log_mutex.unlock();
cmiller86 5:c3e1fc7fa00d 157
cmiller86 5:c3e1fc7fa00d 158 Thread::wait(1000);
cmiller86 5:c3e1fc7fa00d 159 }
cmiller86 5:c3e1fc7fa00d 160 else
cmiller86 5:c3e1fc7fa00d 161 {
cmiller86 5:c3e1fc7fa00d 162 if(log_open)
cmiller86 5:c3e1fc7fa00d 163 {
cmiller86 5:c3e1fc7fa00d 164 fclose(sdout);
cmiller86 5:c3e1fc7fa00d 165 log_open = false;
cmiller86 5:c3e1fc7fa00d 166 }
cmiller86 5:c3e1fc7fa00d 167 }
cmiller86 2:21e4b9092bb2 168
cmiller86 5:c3e1fc7fa00d 169 led2 = log_switch;
cmiller86 3:b490294520d5 170 }
cmiller86 3:b490294520d5 171 }
cmiller86 3:b490294520d5 172
cmiller86 5:c3e1fc7fa00d 173 bool gps_out_of_bounds()
cmiller86 5:c3e1fc7fa00d 174 {
cmiller86 5:c3e1fc7fa00d 175 static int count = 0;
cmiller86 5:c3e1fc7fa00d 176
cmiller86 5:c3e1fc7fa00d 177 if(gps_locked)
cmiller86 5:c3e1fc7fa00d 178 {
cmiller86 5:c3e1fc7fa00d 179 if(count > 10)
cmiller86 5:c3e1fc7fa00d 180 {
cmiller86 5:c3e1fc7fa00d 181 count = 0;
cmiller86 5:c3e1fc7fa00d 182 return gps.latitude < MIN_LATITUDE
cmiller86 5:c3e1fc7fa00d 183 || gps.latitude > MAX_LATITUDE
cmiller86 5:c3e1fc7fa00d 184 || gps.longitude < MIN_LONGITUDE
cmiller86 5:c3e1fc7fa00d 185 || gps.longitude > MAX_LONGITUDE;
cmiller86 5:c3e1fc7fa00d 186 }
cmiller86 5:c3e1fc7fa00d 187 else
cmiller86 5:c3e1fc7fa00d 188 {
cmiller86 5:c3e1fc7fa00d 189 count++;
cmiller86 5:c3e1fc7fa00d 190 return false;
cmiller86 5:c3e1fc7fa00d 191 }
cmiller86 5:c3e1fc7fa00d 192 }
cmiller86 5:c3e1fc7fa00d 193 else
cmiller86 5:c3e1fc7fa00d 194 return false;
cmiller86 5:c3e1fc7fa00d 195 }
cmiller86 5:c3e1fc7fa00d 196
cmiller86 4:ebf8c354c758 197 void check_cutdown(void const *args)
cmiller86 3:b490294520d5 198 {
cmiller86 3:b490294520d5 199 while(true)
cmiller86 3:b490294520d5 200 {
cmiller86 5:c3e1fc7fa00d 201 if(t.read() >= 7200 || dtmf1 || alt_altitude.altitude() > 100000 || gps_out_of_bounds())
cmiller86 2:21e4b9092bb2 202 cutdown = true;
Gjika 1:2c4f640a8104 203
cmiller86 2:21e4b9092bb2 204 if(cutdown && !attempted)
cmiller86 2:21e4b9092bb2 205 {
cmiller86 3:b490294520d5 206 log_mutex.lock();
cmiller86 5:c3e1fc7fa00d 207
cmiller86 5:c3e1fc7fa00d 208 if(log_switch && log_open)
cmiller86 5:c3e1fc7fa00d 209 {
cmiller86 5:c3e1fc7fa00d 210 fprintf(sdout, "Cutdown Started = %f\r\n", t.read());
cmiller86 5:c3e1fc7fa00d 211
cmiller86 5:c3e1fc7fa00d 212 #ifdef PC_DEBUG
cmiller86 5:c3e1fc7fa00d 213 pc.printf("Cutdown Started = %f\r\n", t.read());
cmiller86 5:c3e1fc7fa00d 214 #endif
cmiller86 5:c3e1fc7fa00d 215 }
cmiller86 5:c3e1fc7fa00d 216
cmiller86 3:b490294520d5 217 log_mutex.unlock();
cmiller86 2:21e4b9092bb2 218
cmiller86 2:21e4b9092bb2 219 relay = 1;
cmiller86 5:c3e1fc7fa00d 220 Thread::wait(20000);
cmiller86 2:21e4b9092bb2 221 relay = 0;
cmiller86 2:21e4b9092bb2 222
cmiller86 3:b490294520d5 223 log_mutex.lock();
cmiller86 5:c3e1fc7fa00d 224
cmiller86 5:c3e1fc7fa00d 225 if(log_switch && log_open)
cmiller86 5:c3e1fc7fa00d 226 {
cmiller86 5:c3e1fc7fa00d 227 fprintf(sdout, "Cutdown Ended = %f\r\n", t.read());
cmiller86 5:c3e1fc7fa00d 228
cmiller86 5:c3e1fc7fa00d 229 #ifdef PC_DEBUG
cmiller86 5:c3e1fc7fa00d 230 pc.printf("Cutdown Ended = %f\r\n", t.read());
cmiller86 5:c3e1fc7fa00d 231 #endif
cmiller86 5:c3e1fc7fa00d 232 }
cmiller86 5:c3e1fc7fa00d 233
cmiller86 3:b490294520d5 234 log_mutex.unlock();
cmiller86 2:21e4b9092bb2 235
cmiller86 2:21e4b9092bb2 236 attempted = true;
simon 0:6b7345059afe 237 }
cmiller86 3:b490294520d5 238
cmiller86 3:b490294520d5 239 Thread::wait(100);
simon 0:6b7345059afe 240 }
cmiller86 2:21e4b9092bb2 241 }
cmiller86 3:b490294520d5 242
cmiller86 3:b490294520d5 243 int main()
cmiller86 3:b490294520d5 244 {
cmiller86 4:ebf8c354c758 245 init();
cmiller86 4:ebf8c354c758 246
cmiller86 3:b490294520d5 247 Thread gps_thread(update_gps);
cmiller86 3:b490294520d5 248 Thread temperature_thread(update_temperature);
cmiller86 5:c3e1fc7fa00d 249 Thread altimeter_thread(update_altimeter);
cmiller86 3:b490294520d5 250 Thread log_thread(write_to_log);
cmiller86 3:b490294520d5 251 Thread cutdown_thread(check_cutdown);
cmiller86 5:c3e1fc7fa00d 252
cmiller86 5:c3e1fc7fa00d 253 while(true);
cmiller86 3:b490294520d5 254 }