Jurica Resetar / Mbed OS aconnoCellularGnss

The program sends the current location over the cellular network.

Dependencies:   aconno_I2C ublox-at-cellular-interface gnss ublox-cellular-base Lis2dh12 ublox-cellular-base-n2xx ublox-at-cellular-interface-n2xx low-power-sleep

Fork of example-gnss by u-blox

aconnoHelpers/aconnoHelpers.cpp@9:f943c09d9173, 2018-12-19 (annotated)

Committer:
jurica238814
Date:
Wed Dec 19 15:12:25 2018 +0100
Revision:
9:f943c09d9173
Parent:
8:2bf886335fd0 
Stable version

Who changed what in which revision?

UserRevisionLine numberNew contents of line
jurica238814 8:2bf886335fd0 1 /**
jurica238814 8:2bf886335fd0 2 * aconno helpers
jurica238814 8:2bf886335fd0 3 * Set of general purpose fuctions used within aconno projects
jurica238814 8:2bf886335fd0 4 *
jurica238814 8:2bf886335fd0 5 */
jurica238814 8:2bf886335fd0 6
jurica238814 8:2bf886335fd0 7 #include "mbed.h"
jurica238814 8:2bf886335fd0 8 #include "aconnoHelpers.h"
jurica238814 8:2bf886335fd0 9 #include "stdlib.h"
jurica238814 8:2bf886335fd0 10 #include "gnss.h"
jurica238814 8:2bf886335fd0 11 #include "aconnoConfig.h"
jurica238814 8:2bf886335fd0 12
jurica238814 9:f943c09d9173 13 bool getGPSData(char *location, GnssSerial *gnss, uint32_t timeoutS)
jurica238814 8:2bf886335fd0 14 {
jurica238814 8:2bf886335fd0 15 int gnssReturnCode;
jurica238814 9:f943c09d9173 16 int length;
jurica238814 9:f943c09d9173 17 char buffer[505];
jurica238814 8:2bf886335fd0 18 bool gotLocationFlag = false;
jurica238814 9:f943c09d9173 19 int begin;
jurica238814 9:f943c09d9173 20 int end;
jurica238814 9:f943c09d9173 21
jurica238814 9:f943c09d9173 22 if(!timeoutS)
jurica238814 9:f943c09d9173 23 {
jurica238814 9:f943c09d9173 24 // Max number of seconds
jurica238814 9:f943c09d9173 25 timeoutS -= 1;
jurica238814 9:f943c09d9173 26 }
jurica238814 9:f943c09d9173 27
jurica238814 9:f943c09d9173 28 Timer timeoutTimer;
jurica238814 9:f943c09d9173 29 timeoutTimer.start();
jurica238814 9:f943c09d9173 30 begin = timeoutTimer.read();
jurica238814 8:2bf886335fd0 31 do
jurica238814 8:2bf886335fd0 32 {
jurica238814 8:2bf886335fd0 33 gnssReturnCode = gnss->getMessage(buffer, sizeof(buffer));
jurica238814 8:2bf886335fd0 34 if (gnssReturnCode > 0)
jurica238814 8:2bf886335fd0 35 {
jurica238814 8:2bf886335fd0 36 // Msg from GNSS module received
jurica238814 8:2bf886335fd0 37 length = LENGTH(gnssReturnCode);
jurica238814 8:2bf886335fd0 38 if ((PROTOCOL(gnssReturnCode) == GnssParser::NMEA) && (length > 6))
jurica238814 8:2bf886335fd0 39 {
jurica238814 9:f943c09d9173 40 // Talker is $GA=Galileo $GB=Beidou $GL=Glonass
jurica238814 9:f943c09d9173 41 // $GN=Combined $GP=GNSS
jurica238814 8:2bf886335fd0 42 if ((buffer[0] == '$') || buffer[1] == 'G')
jurica238814 8:2bf886335fd0 43 {
jurica238814 9:f943c09d9173 44 if (CHECK_TALKER("GLL"))
jurica238814 9:f943c09d9173 45 {
jurica238814 9:f943c09d9173 46
jurica238814 8:2bf886335fd0 47 double latitude = 0, longitude = 0;
jurica238814 8:2bf886335fd0 48 char ch;
jurica238814 8:2bf886335fd0 49 if (gnss->getNmeaAngle(1, buffer, length, latitude) &&
jurica238814 8:2bf886335fd0 50 gnss->getNmeaAngle(3, buffer, length, longitude) &&
jurica238814 9:f943c09d9173 51 gnss->getNmeaItem(6, buffer, length, ch) &&
jurica238814 9:f943c09d9173 52 (ch == 'A'))
jurica238814 9:f943c09d9173 53 {
jurica238814 9:f943c09d9173 54 sprintf(location, "%.5f %.5f", latitude, longitude);
jurica238814 8:2bf886335fd0 55 printf("Got location!\r\n");
jurica238814 8:2bf886335fd0 56 gotLocationFlag = true;
jurica238814 8:2bf886335fd0 57 }
jurica238814 8:2bf886335fd0 58 }
jurica238814 8:2bf886335fd0 59 }
jurica238814 8:2bf886335fd0 60 }
jurica238814 8:2bf886335fd0 61 }
jurica238814 9:f943c09d9173 62 end = timeoutTimer.read();
jurica238814 9:f943c09d9173 63 } while (!gotLocationFlag && (end - begin) < timeoutS);
jurica238814 9:f943c09d9173 64
jurica238814 9:f943c09d9173 65 printf("Location time: %d\r\n", (end - begin));
jurica238814 9:f943c09d9173 66 return gotLocationFlag;
jurica238814 8:2bf886335fd0 67 }
jurica238814 9:f943c09d9173 68