aigamozu / MBed_Adafruit-GPS-Library2

GPS精度実験

Dependents:   GPSLOG_program

Fork of MBed_Adafruit-GPS-Library by aigamozu

MBed_Adafruit_GPS.cpp@0:a23e3099bb0a, 2014-03-22 (annotated)

Committer:
mlee350
Date:
Sat Mar 22 05:00:47 2014 +0000
Revision:
0:a23e3099bb0a
Child:
1:ff72e93bcb0e
Adafruit Ultimate GPS Arduino library adapted for mbed use.; Original found at https://github.com/adafruit/Adafruit-GPS-Library

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mlee350 0:a23e3099bb0a 1 /***********************************
mlee350 0:a23e3099bb0a 2 This is our GPS library
mlee350 0:a23e3099bb0a 3
mlee350 0:a23e3099bb0a 4 Adafruit invests time and resources providing this open source code,
mlee350 0:a23e3099bb0a 5 please support Adafruit and open-source hardware by purchasing
mlee350 0:a23e3099bb0a 6 products from Adafruit!
mlee350 0:a23e3099bb0a 7
mlee350 0:a23e3099bb0a 8 Written by Limor Fried/Ladyada for Adafruit Industries.
mlee350 0:a23e3099bb0a 9 BSD license, check license.txt for more information
mlee350 0:a23e3099bb0a 10 All text above must be included in any redistribution
mlee350 0:a23e3099bb0a 11 ****************************************/
mlee350 0:a23e3099bb0a 12
mlee350 0:a23e3099bb0a 13 #include "MBed_Adafruit_GPS.h"
mlee350 0:a23e3099bb0a 14
mlee350 0:a23e3099bb0a 15 // how long are max NMEA lines to parse?
mlee350 0:a23e3099bb0a 16 #define MAXLINELENGTH 120
mlee350 0:a23e3099bb0a 17
mlee350 0:a23e3099bb0a 18 // we double buffer: read one line in and leave one for the main program
mlee350 0:a23e3099bb0a 19 volatile char line1[MAXLINELENGTH];
mlee350 0:a23e3099bb0a 20 volatile char line2[MAXLINELENGTH];
mlee350 0:a23e3099bb0a 21 // our index into filling the current line
mlee350 0:a23e3099bb0a 22 volatile uint16_t lineidx=0;
mlee350 0:a23e3099bb0a 23 // pointers to the double buffers
mlee350 0:a23e3099bb0a 24 volatile char *currentline;
mlee350 0:a23e3099bb0a 25 volatile char *lastline;
mlee350 0:a23e3099bb0a 26 volatile bool recvdflag;
mlee350 0:a23e3099bb0a 27 volatile bool inStandbyMode;
mlee350 0:a23e3099bb0a 28
mlee350 0:a23e3099bb0a 29
mlee350 0:a23e3099bb0a 30 bool Adafruit_GPS::parse(char *nmea) {
mlee350 0:a23e3099bb0a 31 // do checksum check
mlee350 0:a23e3099bb0a 32
mlee350 0:a23e3099bb0a 33 // first look if we even have one
mlee350 0:a23e3099bb0a 34 if (nmea[strlen(nmea)-4] == '*') {
mlee350 0:a23e3099bb0a 35 uint16_t sum = parseHex(nmea[strlen(nmea)-3]) * 16;
mlee350 0:a23e3099bb0a 36 sum += parseHex(nmea[strlen(nmea)-2]);
mlee350 0:a23e3099bb0a 37
mlee350 0:a23e3099bb0a 38 // check checksum
mlee350 0:a23e3099bb0a 39 for (uint8_t i=1; i < (strlen(nmea)-4); i++) {
mlee350 0:a23e3099bb0a 40 sum ^= nmea[i];
mlee350 0:a23e3099bb0a 41 }
mlee350 0:a23e3099bb0a 42 if (sum != 0) {
mlee350 0:a23e3099bb0a 43 // bad checksum :(
mlee350 0:a23e3099bb0a 44 //return false;
mlee350 0:a23e3099bb0a 45 }
mlee350 0:a23e3099bb0a 46 }
mlee350 0:a23e3099bb0a 47
mlee350 0:a23e3099bb0a 48 // look for a few common sentences
mlee350 0:a23e3099bb0a 49 if (strstr(nmea, "$GPGGA")) {
mlee350 0:a23e3099bb0a 50 // found GGA
mlee350 0:a23e3099bb0a 51 char *p = nmea;
mlee350 0:a23e3099bb0a 52 // get time
mlee350 0:a23e3099bb0a 53 p = strchr(p, ',')+1;
mlee350 0:a23e3099bb0a 54 float timef = atof(p);
mlee350 0:a23e3099bb0a 55 uint32_t time = timef;
mlee350 0:a23e3099bb0a 56 hour = time / 10000;
mlee350 0:a23e3099bb0a 57 minute = (time % 10000) / 100;
mlee350 0:a23e3099bb0a 58 seconds = (time % 100);
mlee350 0:a23e3099bb0a 59
mlee350 0:a23e3099bb0a 60 milliseconds = fmod((double) timef, 1.0) * 1000;
mlee350 0:a23e3099bb0a 61
mlee350 0:a23e3099bb0a 62 // parse out latitude
mlee350 0:a23e3099bb0a 63 p = strchr(p, ',')+1;
mlee350 0:a23e3099bb0a 64 latitude = atof(p);
mlee350 0:a23e3099bb0a 65
mlee350 0:a23e3099bb0a 66 p = strchr(p, ',')+1;
mlee350 0:a23e3099bb0a 67 if (p[0] == 'N') lat = 'N';
mlee350 0:a23e3099bb0a 68 else if (p[0] == 'S') lat = 'S';
mlee350 0:a23e3099bb0a 69 else if (p[0] == ',') lat = 0;
mlee350 0:a23e3099bb0a 70 else return false;
mlee350 0:a23e3099bb0a 71
mlee350 0:a23e3099bb0a 72 // parse out longitude
mlee350 0:a23e3099bb0a 73 p = strchr(p, ',')+1;
mlee350 0:a23e3099bb0a 74 longitude = atof(p);
mlee350 0:a23e3099bb0a 75
mlee350 0:a23e3099bb0a 76 p = strchr(p, ',')+1;
mlee350 0:a23e3099bb0a 77 if (p[0] == 'W') lon = 'W';
mlee350 0:a23e3099bb0a 78 else if (p[0] == 'E') lon = 'E';
mlee350 0:a23e3099bb0a 79 else if (p[0] == ',') lon = 0;
mlee350 0:a23e3099bb0a 80 else return false;
mlee350 0:a23e3099bb0a 81
mlee350 0:a23e3099bb0a 82 p = strchr(p, ',')+1;
mlee350 0:a23e3099bb0a 83 fixquality = atoi(p);
mlee350 0:a23e3099bb0a 84
mlee350 0:a23e3099bb0a 85 p = strchr(p, ',')+1;
mlee350 0:a23e3099bb0a 86 satellites = atoi(p);
mlee350 0:a23e3099bb0a 87
mlee350 0:a23e3099bb0a 88 p = strchr(p, ',')+1;
mlee350 0:a23e3099bb0a 89 HDOP = atof(p);
mlee350 0:a23e3099bb0a 90
mlee350 0:a23e3099bb0a 91 p = strchr(p, ',')+1;
mlee350 0:a23e3099bb0a 92 altitude = atof(p);
mlee350 0:a23e3099bb0a 93 p = strchr(p, ',')+1;
mlee350 0:a23e3099bb0a 94 p = strchr(p, ',')+1;
mlee350 0:a23e3099bb0a 95 geoidheight = atof(p);
mlee350 0:a23e3099bb0a 96 return true;
mlee350 0:a23e3099bb0a 97 }
mlee350 0:a23e3099bb0a 98 if (strstr(nmea, "$GPRMC")) {
mlee350 0:a23e3099bb0a 99 // found RMC
mlee350 0:a23e3099bb0a 100 char *p = nmea;
mlee350 0:a23e3099bb0a 101
mlee350 0:a23e3099bb0a 102 // get time
mlee350 0:a23e3099bb0a 103 p = strchr(p, ',')+1;
mlee350 0:a23e3099bb0a 104 float timef = atof(p);
mlee350 0:a23e3099bb0a 105 uint32_t time = timef;
mlee350 0:a23e3099bb0a 106 hour = time / 10000;
mlee350 0:a23e3099bb0a 107 minute = (time % 10000) / 100;
mlee350 0:a23e3099bb0a 108 seconds = (time % 100);
mlee350 0:a23e3099bb0a 109
mlee350 0:a23e3099bb0a 110 milliseconds = fmod((double) timef, 1.0) * 1000;
mlee350 0:a23e3099bb0a 111
mlee350 0:a23e3099bb0a 112 p = strchr(p, ',')+1;
mlee350 0:a23e3099bb0a 113 // Serial.println(p);
mlee350 0:a23e3099bb0a 114 if (p[0] == 'A')
mlee350 0:a23e3099bb0a 115 fix = true;
mlee350 0:a23e3099bb0a 116 else if (p[0] == 'V')
mlee350 0:a23e3099bb0a 117 fix = false;
mlee350 0:a23e3099bb0a 118 else
mlee350 0:a23e3099bb0a 119 return false;
mlee350 0:a23e3099bb0a 120
mlee350 0:a23e3099bb0a 121 // parse out latitude
mlee350 0:a23e3099bb0a 122 p = strchr(p, ',')+1;
mlee350 0:a23e3099bb0a 123 latitude = atof(p);
mlee350 0:a23e3099bb0a 124
mlee350 0:a23e3099bb0a 125 p = strchr(p, ',')+1;
mlee350 0:a23e3099bb0a 126 if (p[0] == 'N') lat = 'N';
mlee350 0:a23e3099bb0a 127 else if (p[0] == 'S') lat = 'S';
mlee350 0:a23e3099bb0a 128 else if (p[0] == ',') lat = 0;
mlee350 0:a23e3099bb0a 129 else return false;
mlee350 0:a23e3099bb0a 130
mlee350 0:a23e3099bb0a 131 // parse out longitude
mlee350 0:a23e3099bb0a 132 p = strchr(p, ',')+1;
mlee350 0:a23e3099bb0a 133 longitude = atof(p);
mlee350 0:a23e3099bb0a 134
mlee350 0:a23e3099bb0a 135 p = strchr(p, ',')+1;
mlee350 0:a23e3099bb0a 136 if (p[0] == 'W') lon = 'W';
mlee350 0:a23e3099bb0a 137 else if (p[0] == 'E') lon = 'E';
mlee350 0:a23e3099bb0a 138 else if (p[0] == ',') lon = 0;
mlee350 0:a23e3099bb0a 139 else return false;
mlee350 0:a23e3099bb0a 140
mlee350 0:a23e3099bb0a 141 // speed
mlee350 0:a23e3099bb0a 142 p = strchr(p, ',')+1;
mlee350 0:a23e3099bb0a 143 speed = atof(p);
mlee350 0:a23e3099bb0a 144
mlee350 0:a23e3099bb0a 145 // angle
mlee350 0:a23e3099bb0a 146 p = strchr(p, ',')+1;
mlee350 0:a23e3099bb0a 147 angle = atof(p);
mlee350 0:a23e3099bb0a 148
mlee350 0:a23e3099bb0a 149 p = strchr(p, ',')+1;
mlee350 0:a23e3099bb0a 150 uint32_t fulldate = atof(p);
mlee350 0:a23e3099bb0a 151 day = fulldate / 10000;
mlee350 0:a23e3099bb0a 152 month = (fulldate % 10000) / 100;
mlee350 0:a23e3099bb0a 153 year = (fulldate % 100);
mlee350 0:a23e3099bb0a 154
mlee350 0:a23e3099bb0a 155 // we dont parse the remaining, yet!
mlee350 0:a23e3099bb0a 156 return true;
mlee350 0:a23e3099bb0a 157 }
mlee350 0:a23e3099bb0a 158
mlee350 0:a23e3099bb0a 159 return false;
mlee350 0:a23e3099bb0a 160 }
mlee350 0:a23e3099bb0a 161
mlee350 0:a23e3099bb0a 162 char Adafruit_GPS::read(void) {
mlee350 0:a23e3099bb0a 163 char c = 0;
mlee350 0:a23e3099bb0a 164
mlee350 0:a23e3099bb0a 165 if (paused) return c;
mlee350 0:a23e3099bb0a 166
mlee350 0:a23e3099bb0a 167 if(!gpsSerial->readable()) return c;
mlee350 0:a23e3099bb0a 168 c = gpsSerial->getc();
mlee350 0:a23e3099bb0a 169
mlee350 0:a23e3099bb0a 170 //Serial.print(c);
mlee350 0:a23e3099bb0a 171
mlee350 0:a23e3099bb0a 172 if (c == '$') {
mlee350 0:a23e3099bb0a 173 currentline[lineidx] = 0;
mlee350 0:a23e3099bb0a 174 lineidx = 0;
mlee350 0:a23e3099bb0a 175 }
mlee350 0:a23e3099bb0a 176 if (c == '\n') {
mlee350 0:a23e3099bb0a 177 currentline[lineidx] = 0;
mlee350 0:a23e3099bb0a 178
mlee350 0:a23e3099bb0a 179 if (currentline == line1) {
mlee350 0:a23e3099bb0a 180 currentline = line2;
mlee350 0:a23e3099bb0a 181 lastline = line1;
mlee350 0:a23e3099bb0a 182 } else {
mlee350 0:a23e3099bb0a 183 currentline = line1;
mlee350 0:a23e3099bb0a 184 lastline = line2;
mlee350 0:a23e3099bb0a 185 }
mlee350 0:a23e3099bb0a 186
mlee350 0:a23e3099bb0a 187 lineidx = 0;
mlee350 0:a23e3099bb0a 188 recvdflag = true;
mlee350 0:a23e3099bb0a 189 }
mlee350 0:a23e3099bb0a 190
mlee350 0:a23e3099bb0a 191 currentline[lineidx++] = c;
mlee350 0:a23e3099bb0a 192 if (lineidx >= MAXLINELENGTH)
mlee350 0:a23e3099bb0a 193 lineidx = MAXLINELENGTH-1;
mlee350 0:a23e3099bb0a 194
mlee350 0:a23e3099bb0a 195 return c;
mlee350 0:a23e3099bb0a 196 }
mlee350 0:a23e3099bb0a 197
mlee350 0:a23e3099bb0a 198 Adafruit_GPS::Adafruit_GPS (Serial *ser)
mlee350 0:a23e3099bb0a 199 {
mlee350 0:a23e3099bb0a 200 common_init(); // Set everything to common state, then...
mlee350 0:a23e3099bb0a 201 gpsSerial = ser; // ...override gpsSwSerial with value passed.
mlee350 0:a23e3099bb0a 202 }
mlee350 0:a23e3099bb0a 203
mlee350 0:a23e3099bb0a 204 // Initialization code used by all constructor types
mlee350 0:a23e3099bb0a 205 void Adafruit_GPS::common_init(void) {
mlee350 0:a23e3099bb0a 206 gpsSerial = NULL;
mlee350 0:a23e3099bb0a 207 recvdflag = false;
mlee350 0:a23e3099bb0a 208 paused = false;
mlee350 0:a23e3099bb0a 209 lineidx = 0;
mlee350 0:a23e3099bb0a 210 currentline = line1;
mlee350 0:a23e3099bb0a 211 lastline = line2;
mlee350 0:a23e3099bb0a 212
mlee350 0:a23e3099bb0a 213 hour = minute = seconds = year = month = day =
mlee350 0:a23e3099bb0a 214 fixquality = satellites = 0; // uint8_t
mlee350 0:a23e3099bb0a 215 lat = lon = mag = 0; // char
mlee350 0:a23e3099bb0a 216 fix = false; // bool
mlee350 0:a23e3099bb0a 217 milliseconds = 0; // uint16_t
mlee350 0:a23e3099bb0a 218 latitude = longitude = geoidheight = altitude =
mlee350 0:a23e3099bb0a 219 speed = angle = magvariation = HDOP = 0.0; // float
mlee350 0:a23e3099bb0a 220 }
mlee350 0:a23e3099bb0a 221
mlee350 0:a23e3099bb0a 222 void Adafruit_GPS::begin(int baud)
mlee350 0:a23e3099bb0a 223 {
mlee350 0:a23e3099bb0a 224 gpsSerial->baud(baud);
mlee350 0:a23e3099bb0a 225 wait_ms(10);
mlee350 0:a23e3099bb0a 226 }
mlee350 0:a23e3099bb0a 227
mlee350 0:a23e3099bb0a 228 void Adafruit_GPS::sendCommand(char *str) {
mlee350 0:a23e3099bb0a 229 gpsSerial->printf("%s",str);
mlee350 0:a23e3099bb0a 230 }
mlee350 0:a23e3099bb0a 231
mlee350 0:a23e3099bb0a 232 bool Adafruit_GPS::newNMEAreceived(void) {
mlee350 0:a23e3099bb0a 233 return recvdflag;
mlee350 0:a23e3099bb0a 234 }
mlee350 0:a23e3099bb0a 235
mlee350 0:a23e3099bb0a 236 void Adafruit_GPS::pause(bool p) {
mlee350 0:a23e3099bb0a 237 paused = p;
mlee350 0:a23e3099bb0a 238 }
mlee350 0:a23e3099bb0a 239
mlee350 0:a23e3099bb0a 240 char *Adafruit_GPS::lastNMEA(void) {
mlee350 0:a23e3099bb0a 241 recvdflag = false;
mlee350 0:a23e3099bb0a 242 return (char *)lastline;
mlee350 0:a23e3099bb0a 243 }
mlee350 0:a23e3099bb0a 244
mlee350 0:a23e3099bb0a 245 // read a Hex value and return the decimal equivalent
mlee350 0:a23e3099bb0a 246 uint8_t Adafruit_GPS::parseHex(char c) {
mlee350 0:a23e3099bb0a 247 if (c < '0')
mlee350 0:a23e3099bb0a 248 return 0;
mlee350 0:a23e3099bb0a 249 if (c <= '9')
mlee350 0:a23e3099bb0a 250 return c - '0';
mlee350 0:a23e3099bb0a 251 if (c < 'A')
mlee350 0:a23e3099bb0a 252 return 0;
mlee350 0:a23e3099bb0a 253 if (c <= 'F')
mlee350 0:a23e3099bb0a 254 return (c - 'A')+10;
mlee350 0:a23e3099bb0a 255 }
mlee350 0:a23e3099bb0a 256
mlee350 0:a23e3099bb0a 257 bool Adafruit_GPS::waitForSentence(char *wait4me, uint8_t max) {
mlee350 0:a23e3099bb0a 258 char str[20];
mlee350 0:a23e3099bb0a 259
mlee350 0:a23e3099bb0a 260 uint8_t i=0;
mlee350 0:a23e3099bb0a 261 while (i < max) {
mlee350 0:a23e3099bb0a 262 if (newNMEAreceived()) {
mlee350 0:a23e3099bb0a 263 char *nmea = lastNMEA();
mlee350 0:a23e3099bb0a 264 strncpy(str, nmea, 20);
mlee350 0:a23e3099bb0a 265 str[19] = 0;
mlee350 0:a23e3099bb0a 266 i++;
mlee350 0:a23e3099bb0a 267
mlee350 0:a23e3099bb0a 268 if (strstr(str, wait4me))
mlee350 0:a23e3099bb0a 269 return true;
mlee350 0:a23e3099bb0a 270 }
mlee350 0:a23e3099bb0a 271 }
mlee350 0:a23e3099bb0a 272
mlee350 0:a23e3099bb0a 273 return false;
mlee350 0:a23e3099bb0a 274 }
mlee350 0:a23e3099bb0a 275
mlee350 0:a23e3099bb0a 276 bool Adafruit_GPS::LOCUS_StartLogger(void) {
mlee350 0:a23e3099bb0a 277 sendCommand(PMTK_LOCUS_STARTLOG);
mlee350 0:a23e3099bb0a 278 recvdflag = false;
mlee350 0:a23e3099bb0a 279 return waitForSentence(PMTK_LOCUS_LOGSTARTED);
mlee350 0:a23e3099bb0a 280 }
mlee350 0:a23e3099bb0a 281
mlee350 0:a23e3099bb0a 282 bool Adafruit_GPS::LOCUS_ReadStatus(void) {
mlee350 0:a23e3099bb0a 283 sendCommand(PMTK_LOCUS_QUERY_STATUS);
mlee350 0:a23e3099bb0a 284
mlee350 0:a23e3099bb0a 285 if (! waitForSentence("$PMTKLOG"))
mlee350 0:a23e3099bb0a 286 return false;
mlee350 0:a23e3099bb0a 287
mlee350 0:a23e3099bb0a 288 char *response = lastNMEA();
mlee350 0:a23e3099bb0a 289 uint16_t parsed[10];
mlee350 0:a23e3099bb0a 290 uint8_t i;
mlee350 0:a23e3099bb0a 291
mlee350 0:a23e3099bb0a 292 for (i=0; i<10; i++) parsed[i] = -1;
mlee350 0:a23e3099bb0a 293
mlee350 0:a23e3099bb0a 294 response = strchr(response, ',');
mlee350 0:a23e3099bb0a 295 for (i=0; i<10; i++) {
mlee350 0:a23e3099bb0a 296 if (!response || (response[0] == 0) || (response[0] == '*'))
mlee350 0:a23e3099bb0a 297 break;
mlee350 0:a23e3099bb0a 298 response++;
mlee350 0:a23e3099bb0a 299 parsed[i]=0;
mlee350 0:a23e3099bb0a 300 while ((response[0] != ',') &&
mlee350 0:a23e3099bb0a 301 (response[0] != '*') && (response[0] != 0)) {
mlee350 0:a23e3099bb0a 302 parsed[i] *= 10;
mlee350 0:a23e3099bb0a 303 char c = response[0];
mlee350 0:a23e3099bb0a 304 if (isdigit(c))
mlee350 0:a23e3099bb0a 305 parsed[i] += c - '0';
mlee350 0:a23e3099bb0a 306 else
mlee350 0:a23e3099bb0a 307 parsed[i] = c;
mlee350 0:a23e3099bb0a 308 response++;
mlee350 0:a23e3099bb0a 309 }
mlee350 0:a23e3099bb0a 310 }
mlee350 0:a23e3099bb0a 311 LOCUS_serial = parsed[0];
mlee350 0:a23e3099bb0a 312 LOCUS_type = parsed[1];
mlee350 0:a23e3099bb0a 313 if (isalpha(parsed[2])) {
mlee350 0:a23e3099bb0a 314 parsed[2] = parsed[2] - 'a' + 10;
mlee350 0:a23e3099bb0a 315 }
mlee350 0:a23e3099bb0a 316 LOCUS_mode = parsed[2];
mlee350 0:a23e3099bb0a 317 LOCUS_config = parsed[3];
mlee350 0:a23e3099bb0a 318 LOCUS_interval = parsed[4];
mlee350 0:a23e3099bb0a 319 LOCUS_distance = parsed[5];
mlee350 0:a23e3099bb0a 320 LOCUS_speed = parsed[6];
mlee350 0:a23e3099bb0a 321 LOCUS_status = !parsed[7];
mlee350 0:a23e3099bb0a 322 LOCUS_records = parsed[8];
mlee350 0:a23e3099bb0a 323 LOCUS_percent = parsed[9];
mlee350 0:a23e3099bb0a 324
mlee350 0:a23e3099bb0a 325 return true;
mlee350 0:a23e3099bb0a 326 }
mlee350 0:a23e3099bb0a 327
mlee350 0:a23e3099bb0a 328 // Standby Mode Switches
mlee350 0:a23e3099bb0a 329 bool Adafruit_GPS::standby(void) {
mlee350 0:a23e3099bb0a 330 if (inStandbyMode) {
mlee350 0:a23e3099bb0a 331 return false; // Returns false if already in standby mode, so that you do not wake it up by sending commands to GPS
mlee350 0:a23e3099bb0a 332 }
mlee350 0:a23e3099bb0a 333 else {
mlee350 0:a23e3099bb0a 334 inStandbyMode = true;
mlee350 0:a23e3099bb0a 335 sendCommand(PMTK_STANDBY);
mlee350 0:a23e3099bb0a 336 //return waitForSentence(PMTK_STANDBY_SUCCESS); // don't seem to be fast enough to catch the message, or something else just is not working
mlee350 0:a23e3099bb0a 337 return true;
mlee350 0:a23e3099bb0a 338 }
mlee350 0:a23e3099bb0a 339 }
mlee350 0:a23e3099bb0a 340
mlee350 0:a23e3099bb0a 341 bool Adafruit_GPS::wakeup(void) {
mlee350 0:a23e3099bb0a 342 if (inStandbyMode) {
mlee350 0:a23e3099bb0a 343 inStandbyMode = false;
mlee350 0:a23e3099bb0a 344 sendCommand(""); // send byte to wake it up
mlee350 0:a23e3099bb0a 345 return waitForSentence(PMTK_AWAKE);
mlee350 0:a23e3099bb0a 346 }
mlee350 0:a23e3099bb0a 347 else {
mlee350 0:a23e3099bb0a 348 return false; // Returns false if not in standby mode, nothing to wakeup
mlee350 0:a23e3099bb0a 349 }
mlee350 0:a23e3099bb0a 350 }