CaryCoders / Mbed 2 deprecated zeus

basic lightning detector with gps and sd card logging

Dependencies:   AS3935 AdafruitGPS SDFileSystem TSI mbed ConfigFile

main.cpp@0:3328df4c3116, 2015-06-19 (annotated)

Committer:
ftagius
Date:
Fri Jun 19 11:29:59 2015 +0000
Revision:
0:3328df4c3116
Child:
1:10d2a051285e
first pass integrating lightning sensor with gps and logging

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ftagius 0:3328df4c3116 1 #include "mbed.h"
ftagius 0:3328df4c3116 2 #include "GPS.h"
ftagius 0:3328df4c3116 3 #include "main.h"
ftagius 0:3328df4c3116 4 #include "TSISensor.h"
ftagius 0:3328df4c3116 5 #include "SDFileSystem.h"
ftagius 0:3328df4c3116 6 #include "AS3935.h"
ftagius 0:3328df4c3116 7
ftagius 0:3328df4c3116 8 // frdm-kl25z sd card connections for spi1
ftagius 0:3328df4c3116 9 // ------------------------------------------------
ftagius 0:3328df4c3116 10 // Header -- kl25z -- SD/MMC
ftagius 0:3328df4c3116 11 // J2-20 -- PTE1 -- MOSI
ftagius 0:3328df4c3116 12 // J9-13 -- PTE4 -- CS
ftagius 0:3328df4c3116 13 // J2-14 -- GND -- Vss (GND)
ftagius 0:3328df4c3116 14 // J9-9 -- PTE2 -- SCK
ftagius 0:3328df4c3116 15 // J9-11 -- PTE3 -- MISO
ftagius 0:3328df4c3116 16
ftagius 0:3328df4c3116 17 AS3935 ld(PTE1, PTE3, PTE2, PTE4, "ld", 1000000); // MOSI, MISO, SCK, CS, SPI bus freq (hz)
ftagius 0:3328df4c3116 18 InterruptIn IntLightning(PTA12); //IRQ AS3935
ftagius 0:3328df4c3116 19
ftagius 0:3328df4c3116 20
ftagius 0:3328df4c3116 21 // frdm-kl25z sd card connections spi0
ftagius 0:3328df4c3116 22 // ------------------------------------------------
ftagius 0:3328df4c3116 23 // Header -- kl25z -- SPI
ftagius 0:3328df4c3116 24 // J2-8 -- PTD2 -- MOSI
ftagius 0:3328df4c3116 25 // J2-6 -- PTD0 -- CS
ftagius 0:3328df4c3116 26 // J9-12 -- GND -- Vss (GND)
ftagius 0:3328df4c3116 27 // J9-4 -- P3V3 -- Vdd (+3.3v)
ftagius 0:3328df4c3116 28 // J2-12 -- PTD1 -- SCK
ftagius 0:3328df4c3116 29 // J9-14 -- GND -- Vss (GND)
ftagius 0:3328df4c3116 30 // J2-10 -- PTD3 -- MISO
ftagius 0:3328df4c3116 31
ftagius 0:3328df4c3116 32 SDFileSystem sd(PTD2, PTD3, PTD1, PTD0, "sd"); // MOSI, MISO, SCK, CS
ftagius 0:3328df4c3116 33
ftagius 0:3328df4c3116 34 Serial pc(USBTX, USBRX);
ftagius 0:3328df4c3116 35 GPS gpsd(PTE20, PTE21);
ftagius 0:3328df4c3116 36 DigitalOut red(LED_RED);
ftagius 0:3328df4c3116 37 DigitalOut green(LED_GREEN);
ftagius 0:3328df4c3116 38 //DigitalOut blue(LED_BLUE); don't use the blue led, due to a board error, writing to the blue led kills spi
ftagius 0:3328df4c3116 39 bool debug;
ftagius 0:3328df4c3116 40 //bool gpsEnabled = true;
ftagius 0:3328df4c3116 41 int day, month,year,hour,minute,seconds;
ftagius 0:3328df4c3116 42 void writeLogFile(int distance);
ftagius 0:3328df4c3116 43 //char logFile[]="lightning_data.csv";
ftagius 0:3328df4c3116 44
ftagius 0:3328df4c3116 45 void DetectLightning()
ftagius 0:3328df4c3116 46 {
ftagius 0:3328df4c3116 47 int OriginInt;
ftagius 0:3328df4c3116 48 wait_ms(2); //
ftagius 0:3328df4c3116 49 OriginInt = ld.interruptSource();
ftagius 0:3328df4c3116 50 pc.printf("%02d/%02d/20%02d_%02d:%02d:%02d ",month,day,year,hour,minute,seconds);
ftagius 0:3328df4c3116 51 switch (OriginInt)
ftagius 0:3328df4c3116 52 {
ftagius 0:3328df4c3116 53 case 1:
ftagius 0:3328df4c3116 54 pc.printf("Noise level too high\r\n");
ftagius 0:3328df4c3116 55 break;
ftagius 0:3328df4c3116 56 case 4:
ftagius 0:3328df4c3116 57 pc.printf("Disturber\r\n");
ftagius 0:3328df4c3116 58 writeLogFile(-1); // use -1 for distance to distinguish disturbances from strikes
ftagius 0:3328df4c3116 59 break;
ftagius 0:3328df4c3116 60 case 8:
ftagius 0:3328df4c3116 61 int distance = ld.lightningDistanceKm();
ftagius 0:3328df4c3116 62 pc.printf("Lightning detection, distance=%dkm\r\n", distance);
ftagius 0:3328df4c3116 63 writeLogFile(distance);
ftagius 0:3328df4c3116 64 ld.clearStats();
ftagius 0:3328df4c3116 65 break;
ftagius 0:3328df4c3116 66 default:
ftagius 0:3328df4c3116 67 pc.printf("unknown interrupt %d\r\n", OriginInt);
ftagius 0:3328df4c3116 68
ftagius 0:3328df4c3116 69 }
ftagius 0:3328df4c3116 70
ftagius 0:3328df4c3116 71 }
ftagius 0:3328df4c3116 72
ftagius 0:3328df4c3116 73 void writeLogFile(int distance)
ftagius 0:3328df4c3116 74 {
ftagius 0:3328df4c3116 75 char logFile[128];
ftagius 0:3328df4c3116 76 char directory[]="/sd/lightning_data";
ftagius 0:3328df4c3116 77 static bool header=false;
ftagius 0:3328df4c3116 78 FILE *fp;
ftagius 0:3328df4c3116 79 // create a log file name with the current date/time stamp
ftagius 0:3328df4c3116 80 //sprintf(logFile, "%s%s%02d_%02d_20%02d_%02d_%02d_%02d.csv", directory,"/gps_",gpsd.month,gpsd.day,gpsd.year,gpsd.hour,gpsd.minute,gpsd.seconds);
ftagius 0:3328df4c3116 81 sprintf(logFile, "%s%s", directory,"/lightning_data.csv");
ftagius 0:3328df4c3116 82
ftagius 0:3328df4c3116 83 sd.mount();
ftagius 0:3328df4c3116 84 fp = fopen(logFile, "a");
ftagius 0:3328df4c3116 85 if(fp == NULL) {
ftagius 0:3328df4c3116 86 // retry
ftagius 0:3328df4c3116 87 wait_ms(500);
ftagius 0:3328df4c3116 88 fp = fopen(logFile, "a");
ftagius 0:3328df4c3116 89 if (fp == NULL)
ftagius 0:3328df4c3116 90 {
ftagius 0:3328df4c3116 91 error("Could not open file %s for writing\r\n",logFile);
ftagius 0:3328df4c3116 92 sd.unmount();
ftagius 0:3328df4c3116 93 return;
ftagius 0:3328df4c3116 94 }
ftagius 0:3328df4c3116 95 }
ftagius 0:3328df4c3116 96 pc.printf("Opened log file %s\r\n",logFile);
ftagius 0:3328df4c3116 97 // write the log file header
ftagius 0:3328df4c3116 98 if (header == false)
ftagius 0:3328df4c3116 99 {
ftagius 0:3328df4c3116 100 fprintf(fp,"# date,time,raw timestamp,latitude,longitude,distance\r\n");
ftagius 0:3328df4c3116 101 header = true;
ftagius 0:3328df4c3116 102 }
ftagius 0:3328df4c3116 103 // write to the current log file
ftagius 0:3328df4c3116 104 fprintf(fp,"%02d/%02d/20%02d,", gpsd.month, gpsd.day, gpsd.year);
ftagius 0:3328df4c3116 105 fprintf(fp,"%02d:%02d:%02d,", gpsd.hour, gpsd.minute, gpsd.seconds);
ftagius 0:3328df4c3116 106 fprintf(fp,"%7.0f,",gpsd.timef);
ftagius 0:3328df4c3116 107 fprintf(fp,"%5.7f,%5.7f,", gpsd.lat_deg, gpsd.lon_deg);
ftagius 0:3328df4c3116 108 fprintf(fp,"%d",distance);
ftagius 0:3328df4c3116 109 fprintf(fp,"\r\n");
ftagius 0:3328df4c3116 110 fflush(fp);
ftagius 0:3328df4c3116 111 f_sync((FIL*)fp);
ftagius 0:3328df4c3116 112 fclose(fp);
ftagius 0:3328df4c3116 113 sd.unmount();
ftagius 0:3328df4c3116 114 }
ftagius 0:3328df4c3116 115
ftagius 0:3328df4c3116 116 int main()
ftagius 0:3328df4c3116 117 {
ftagius 0:3328df4c3116 118 bool debug=false;
ftagius 0:3328df4c3116 119 char directory[]="/sd/lightning_data";
ftagius 0:3328df4c3116 120 char c;
ftagius 0:3328df4c3116 121 Timer refresh_Timer; //sets up a timer for use in loop; how often do we print GPS info?
ftagius 0:3328df4c3116 122 const int refresh_Time = 1000; //refresh time in ms
ftagius 0:3328df4c3116 123 TSISensor tsi; // touch slider
ftagius 0:3328df4c3116 124 unsigned long measFreq;
ftagius 0:3328df4c3116 125 pc.baud(9600);
ftagius 0:3328df4c3116 126 // initializations for gps
ftagius 0:3328df4c3116 127 green = 1;
ftagius 0:3328df4c3116 128 gpsd.setBaud(9600);
ftagius 0:3328df4c3116 129 gpsd.sendCommand(PMTK_SET_NMEA_OUTPUT_RMCGGA);
ftagius 0:3328df4c3116 130 gpsd.sendCommand(PMTK_SET_NMEA_UPDATE_1HZ);
ftagius 0:3328df4c3116 131 gpsd.sendCommand(PGCMD_ANTENNA);
ftagius 0:3328df4c3116 132 gpsd.day=01;
ftagius 0:3328df4c3116 133 gpsd.month=01;
ftagius 0:3328df4c3116 134 gpsd.year=15;
ftagius 0:3328df4c3116 135 gpsd.hour=1;
ftagius 0:3328df4c3116 136 gpsd.minute=1;
ftagius 0:3328df4c3116 137 gpsd.seconds=1;
ftagius 0:3328df4c3116 138 red = 1;
ftagius 0:3328df4c3116 139 green = 1;
ftagius 0:3328df4c3116 140 pc.printf("Touch slider to start application\r\n");
ftagius 0:3328df4c3116 141 while(1) {
ftagius 0:3328df4c3116 142 green = 1; // turn led off
ftagius 0:3328df4c3116 143 wait_ms(200);
ftagius 0:3328df4c3116 144 if (tsi.readPercentage())
ftagius 0:3328df4c3116 145 break;
ftagius 0:3328df4c3116 146 green = 0; // turn led on
ftagius 0:3328df4c3116 147 wait_ms(200);
ftagius 0:3328df4c3116 148 if (tsi.readPercentage())
ftagius 0:3328df4c3116 149 break;
ftagius 0:3328df4c3116 150 }
ftagius 0:3328df4c3116 151
ftagius 0:3328df4c3116 152 pc.printf("\r\nstart lightning detector\r\n");
ftagius 0:3328df4c3116 153 //initializations for lightning detector
ftagius 0:3328df4c3116 154 //initializations
ftagius 0:3328df4c3116 155 ld.init();
ftagius 0:3328df4c3116 156 ld.clearStats();
ftagius 0:3328df4c3116 157 //ld.setTuneCap(5); // 500kHz
ftagius 0:3328df4c3116 158 measFreq = ld.tuneAntenna(IntLightning);
ftagius 0:3328df4c3116 159 ld.powerUp();
ftagius 0:3328df4c3116 160 ld.calibrateRCOs(IntLightning);
ftagius 0:3328df4c3116 161 ld.setIndoors();
ftagius 0:3328df4c3116 162 //ld.setOutdoors();
ftagius 0:3328df4c3116 163 ld.setMinimumLightnings(0);
ftagius 0:3328df4c3116 164 ld.setSpikeRejection(2);
ftagius 0:3328df4c3116 165 ld.setNoiseFloor(2);
ftagius 0:3328df4c3116 166 //ld.disableDisturbers();
ftagius 0:3328df4c3116 167 ld.enableDisturbers();
ftagius 0:3328df4c3116 168 ld.setWatchdogThreshold(4);
ftagius 0:3328df4c3116 169 IntLightning.rise(&DetectLightning);
ftagius 0:3328df4c3116 170 int MinBlysk = ld.getMinimumLightnings();
ftagius 0:3328df4c3116 171 int Noise = ld.getNoiseFloor();
ftagius 0:3328df4c3116 172 int TuneCap = ld.getTuneCap();
ftagius 0:3328df4c3116 173 int SpikeRej = ld.getSpikeRejection();
ftagius 0:3328df4c3116 174 int WatchDog = ld.getWatchdogThreshold();
ftagius 0:3328df4c3116 175
ftagius 0:3328df4c3116 176 pc.printf(" Min wylad: %i", MinBlysk);
ftagius 0:3328df4c3116 177 pc.printf("\r\n");
ftagius 0:3328df4c3116 178 pc.printf(" Gain: 0x%02x\r\n",ld.getGain());
ftagius 0:3328df4c3116 179 pc.printf(" Noise: %i", Noise);
ftagius 0:3328df4c3116 180 pc.printf("\r\n");
ftagius 0:3328df4c3116 181 pc.printf(" Tune CAP: %i", TuneCap);
ftagius 0:3328df4c3116 182 pc.printf("\r\n");
ftagius 0:3328df4c3116 183 pc.printf(" Spike rej: %i", SpikeRej);
ftagius 0:3328df4c3116 184 pc.printf("\r\n");
ftagius 0:3328df4c3116 185 pc.printf(" Watchdog: %i", WatchDog);
ftagius 0:3328df4c3116 186 pc.printf("\r\n");
ftagius 0:3328df4c3116 187 pc.printf(" LCO calibration: %ld Hz\n\r", measFreq);
ftagius 0:3328df4c3116 188
ftagius 0:3328df4c3116 189
ftagius 0:3328df4c3116 190 refresh_Timer.start(); //starts the clock on the timer
ftagius 0:3328df4c3116 191 //Mount the filesystem
ftagius 0:3328df4c3116 192 sd.mount();
ftagius 0:3328df4c3116 193 mkdir(directory, 0777);
ftagius 0:3328df4c3116 194 bool gpsFix=false;
ftagius 0:3328df4c3116 195 pc.printf("Starting GPS App\r\n");
ftagius 0:3328df4c3116 196 while (1)
ftagius 0:3328df4c3116 197 {
ftagius 0:3328df4c3116 198 c = gpsd.read(); //queries the GPS
ftagius 0:3328df4c3116 199 if (debug)
ftagius 0:3328df4c3116 200 {
ftagius 0:3328df4c3116 201 if (c) {
ftagius 0:3328df4c3116 202 printf("%c", c); //this line will echo the GPS data if not paused
ftagius 0:3328df4c3116 203 continue;
ftagius 0:3328df4c3116 204 }
ftagius 0:3328df4c3116 205 }
ftagius 0:3328df4c3116 206
ftagius 0:3328df4c3116 207 //check if we recieved a new message from GPS, if so, attempt to parse it,
ftagius 0:3328df4c3116 208 if ( gpsd.newNMEAreceived() ) {
ftagius 0:3328df4c3116 209 if ( !gpsd.parse(gpsd.lastNMEA()) ) {
ftagius 0:3328df4c3116 210 continue;
ftagius 0:3328df4c3116 211 }
ftagius 0:3328df4c3116 212 }
ftagius 0:3328df4c3116 213
ftagius 0:3328df4c3116 214 // update globals with the lastest gps time stamp
ftagius 0:3328df4c3116 215 day=gpsd.day;
ftagius 0:3328df4c3116 216 month=gpsd.month;
ftagius 0:3328df4c3116 217 year=gpsd.year;
ftagius 0:3328df4c3116 218 hour=gpsd.hour;
ftagius 0:3328df4c3116 219 minute=gpsd.minute;
ftagius 0:3328df4c3116 220 seconds=gpsd.seconds;
ftagius 0:3328df4c3116 221
ftagius 0:3328df4c3116 222 //check if enough time has passed to warrant printing GPS info to screen
ftagius 0:3328df4c3116 223 //note if refresh_Time is too low or pc.baud is too low, GPS data may be lost during printing
ftagius 0:3328df4c3116 224 if (refresh_Timer.read_ms() >= refresh_Time)
ftagius 0:3328df4c3116 225 {
ftagius 0:3328df4c3116 226 if (gpsd.fix) {
ftagius 0:3328df4c3116 227 // got a gps fix
ftagius 0:3328df4c3116 228 if (gpsFix == false)
ftagius 0:3328df4c3116 229 {
ftagius 0:3328df4c3116 230 // first time fix obtained
ftagius 0:3328df4c3116 231 gpsFix = true;
ftagius 0:3328df4c3116 232 pc.printf("GPS fix obtained on %02d/%02d/20%02d_%02d:%02d:%02d (UTC)\r\n",gpsd.month,gpsd.day,gpsd.year,gpsd.hour,gpsd.minute,gpsd.seconds);
ftagius 0:3328df4c3116 233 pc.printf("Touch slider to suspend application\r\n");
ftagius 0:3328df4c3116 234 pc.printf("Waiting for lighting detection...\r\n");
ftagius 0:3328df4c3116 235 }
ftagius 0:3328df4c3116 236
ftagius 0:3328df4c3116 237 //red = 1; // turn led off
ftagius 0:3328df4c3116 238 //pc.printf("turn green on\r\n");
ftagius 0:3328df4c3116 239 green = 0; // turn led on
ftagius 0:3328df4c3116 240 wait_ms(50);
ftagius 0:3328df4c3116 241 }
ftagius 0:3328df4c3116 242 else
ftagius 0:3328df4c3116 243 {
ftagius 0:3328df4c3116 244 pc.printf("Waiting for GPS FIX\r\n");
ftagius 0:3328df4c3116 245 red = 0; // turn led on
ftagius 0:3328df4c3116 246 }
ftagius 0:3328df4c3116 247
ftagius 0:3328df4c3116 248 // restart the timer for the gps print loop
ftagius 0:3328df4c3116 249 // writeLogFile(-2);
ftagius 0:3328df4c3116 250 refresh_Timer.reset();
ftagius 0:3328df4c3116 251 }
ftagius 0:3328df4c3116 252 else
ftagius 0:3328df4c3116 253 {
ftagius 0:3328df4c3116 254 //red = 0; // turn led on
ftagius 0:3328df4c3116 255 //pc.printf("turn green off\r\n");
ftagius 0:3328df4c3116 256 green = 1; // turn green led off
ftagius 0:3328df4c3116 257 // check the slider. if touched, disable lighting interrupts and wait for another slider touch
ftagius 0:3328df4c3116 258 if (tsi.readPercentage())
ftagius 0:3328df4c3116 259 {
ftagius 0:3328df4c3116 260 IntLightning.disable_irq();
ftagius 0:3328df4c3116 261 pc.printf("Touch slider to continue application\r\n");
ftagius 0:3328df4c3116 262 while (1)
ftagius 0:3328df4c3116 263 {
ftagius 0:3328df4c3116 264
ftagius 0:3328df4c3116 265 green = 1; // turn led off
ftagius 0:3328df4c3116 266 wait_ms(200);
ftagius 0:3328df4c3116 267 // break of of the loop if the slider is touched
ftagius 0:3328df4c3116 268 if (tsi.readPercentage())
ftagius 0:3328df4c3116 269 {
ftagius 0:3328df4c3116 270 green = 1;
ftagius 0:3328df4c3116 271 red = 1;
ftagius 0:3328df4c3116 272 pc.printf("Now monitoring for lightning strikes\r\n");
ftagius 0:3328df4c3116 273 IntLightning.enable_irq();
ftagius 0:3328df4c3116 274 break;
ftagius 0:3328df4c3116 275 }
ftagius 0:3328df4c3116 276 green = 0; // turn led on
ftagius 0:3328df4c3116 277 wait_ms(200);
ftagius 0:3328df4c3116 278 // break of of the loop if the slider is touched
ftagius 0:3328df4c3116 279 if (tsi.readPercentage())
ftagius 0:3328df4c3116 280 {
ftagius 0:3328df4c3116 281 green = 1;
ftagius 0:3328df4c3116 282 red = 1;
ftagius 0:3328df4c3116 283 pc.printf("Now monitoring for lightning strikes\r\n");
ftagius 0:3328df4c3116 284 IntLightning.enable_irq();
ftagius 0:3328df4c3116 285 break;
ftagius 0:3328df4c3116 286 }
ftagius 0:3328df4c3116 287
ftagius 0:3328df4c3116 288 } // end while 1 for slider
ftagius 0:3328df4c3116 289 } // end if tsi read
ftagius 0:3328df4c3116 290 } // end else refresh timer
ftagius 0:3328df4c3116 291
ftagius 0:3328df4c3116 292 }
ftagius 0:3328df4c3116 293
ftagius 0:3328df4c3116 294
ftagius 0:3328df4c3116 295
ftagius 0:3328df4c3116 296 }