Crispin Mukalay / Mbed 2 deprecated GPS_SIMCOM_SIM808

Read GPS satellite fix, latitude, longitude, MSL altitude, speed (Km/Hour) over ground coordinates and heading (0-360deg).

Dependencies:   Adafruit_FONA_SIMCOM_Library mbed

main.cpp@0:4c181b7daee9, 2018-09-28 (annotated)

Committer:
213468891
Date:
Fri Sep 28 08:53:13 2018 +0000
Revision:
0:4c181b7daee9
SIMCOM SIM808

Who changed what in which revision?

UserRevisionLine numberNew contents of line
213468891 0:4c181b7daee9 1 /*#################################################################################
213468891 0:4c181b7daee9 2
213468891 0:4c181b7daee9 3 Program Name : SIM808 GPS
213468891 0:4c181b7daee9 4 Author : Crispin Mukalay
213468891 0:4c181b7daee9 5 Date Modified : 31/08/2018
213468891 0:4c181b7daee9 6 Compiler : ARMmbed
213468891 0:4c181b7daee9 7 Tested On : NUCLEO-F446RE
213468891 0:4c181b7daee9 8
213468891 0:4c181b7daee9 9 Description : Demonstrates the use of the SIM808 Shield to read the GPS
213468891 0:4c181b7daee9 10 satellite fix, latitude, longitude, MSL altitude,
213468891 0:4c181b7daee9 11 speed (Km/Hour) over ground coordinates and heading (0-360deg).
213468891 0:4c181b7daee9 12
213468891 0:4c181b7daee9 13 Requirements : * NUCLEO-F446RE Board
213468891 0:4c181b7daee9 14 * SIM808 GSM/GPS Module
213468891 0:4c181b7daee9 15
213468891 0:4c181b7daee9 16 Circuit : * The SIM808 module is connected as follows:
213468891 0:4c181b7daee9 17 VCC/5V/VIN - 5V
213468891 0:4c181b7daee9 18 GND - GND
213468891 0:4c181b7daee9 19 RXD - PA0 (F446's Serial4_TX pin)
213468891 0:4c181b7daee9 20 TXD - PA1 (F446's Serial4_RX pin)
213468891 0:4c181b7daee9 21
213468891 0:4c181b7daee9 22 ####################################################################################*/
213468891 0:4c181b7daee9 23
213468891 0:4c181b7daee9 24 #include "mbed.h"
213468891 0:4c181b7daee9 25 #include "Adafruit_FONA.h"
213468891 0:4c181b7daee9 26
213468891 0:4c181b7daee9 27 Adafruit_FONA gps(PA_0, PA_1, PA_6, PA_7); //Create a Adafruit_FONA object called gps
213468891 0:4c181b7daee9 28 // TX RX RST RI
213468891 0:4c181b7daee9 29 //Not all SIM808-based boards have a RST (Reset) and RI (Ring Indicator) pin,
213468891 0:4c181b7daee9 30 //but when initializing the object one needs to specify them, even if they
213468891 0:4c181b7daee9 31 //are not there. In our case we just used two unused pins (PA_6 & PA_7) as "dummy" pins.
213468891 0:4c181b7daee9 32
213468891 0:4c181b7daee9 33 Serial pc(SERIAL_TX, SERIAL_RX); //to use the PC as a console (display output)
213468891 0:4c181b7daee9 34
213468891 0:4c181b7daee9 35 int main() {
213468891 0:4c181b7daee9 36
213468891 0:4c181b7daee9 37 int SIM808Success;
213468891 0:4c181b7daee9 38 bool gpsSuccess, gpsCoordinates;
213468891 0:4c181b7daee9 39 float fix, latitude, longitude, MSL_altitude, speed_kph, heading;
213468891 0:4c181b7daee9 40
213468891 0:4c181b7daee9 41 pc.printf("Program Started...\n");
213468891 0:4c181b7daee9 42
213468891 0:4c181b7daee9 43 /* create connection to SIM808 */
213468891 0:4c181b7daee9 44 pc.printf("\nConnecting to SIM808...\n");
213468891 0:4c181b7daee9 45 SIM808Success = gps.begin(9600); //connect to SIM808 device at 9600 baud rate and return if successful(=1) or not (=0)
213468891 0:4c181b7daee9 46
213468891 0:4c181b7daee9 47 if(SIM808Success == 1)
213468891 0:4c181b7daee9 48 pc.printf("\nSIM808 detected successfully...\n");
213468891 0:4c181b7daee9 49 else {
213468891 0:4c181b7daee9 50 pc.printf("\nSIM808 not detected!\n");
213468891 0:4c181b7daee9 51 while(1); //program stops/freezes at this point if SIM808 not detected
213468891 0:4c181b7daee9 52 }
213468891 0:4c181b7daee9 53
213468891 0:4c181b7daee9 54 /* Enable GPS*/
213468891 0:4c181b7daee9 55 gpsSuccess = gps.enableGPS(true);
213468891 0:4c181b7daee9 56
213468891 0:4c181b7daee9 57 if (gpsSuccess == true)
213468891 0:4c181b7daee9 58 pc.printf("\nGPS enable successful...\n");
213468891 0:4c181b7daee9 59 else
213468891 0:4c181b7daee9 60 pc.printf("\nGPS enable failed!\n");
213468891 0:4c181b7daee9 61
213468891 0:4c181b7daee9 62
213468891 0:4c181b7daee9 63 while(1) {
213468891 0:4c181b7daee9 64 wait(2);
213468891 0:4c181b7daee9 65
213468891 0:4c181b7daee9 66 /* Read coordinates from GPS*/
213468891 0:4c181b7daee9 67 gpsCoordinates = gps.getGPS(&fix, &latitude, &longitude, &MSL_altitude, &speed_kph, &heading);
213468891 0:4c181b7daee9 68
213468891 0:4c181b7daee9 69 if(gpsCoordinates == true){
213468891 0:4c181b7daee9 70
213468891 0:4c181b7daee9 71 if(fix == 1.0f){
213468891 0:4c181b7daee9 72 pc.printf("\n");
213468891 0:4c181b7daee9 73 pc.printf("Latitude: %.6f\n", latitude);
213468891 0:4c181b7daee9 74 pc.printf("Longitude: %.6f\n", longitude);
213468891 0:4c181b7daee9 75 pc.printf("MSL altitude: %.6f\n", MSL_altitude);
213468891 0:4c181b7daee9 76 pc.printf("Speed: %.6f kph\n", speed_kph);
213468891 0:4c181b7daee9 77 pc.printf("Heading: %.6f \n", heading);
213468891 0:4c181b7daee9 78 }else{
213468891 0:4c181b7daee9 79 pc.printf("Waiting for satellite fix...\n");
213468891 0:4c181b7daee9 80 }
213468891 0:4c181b7daee9 81
213468891 0:4c181b7daee9 82 }else{
213468891 0:4c181b7daee9 83 pc.printf("Waiting for satellite fix...\n");
213468891 0:4c181b7daee9 84 }
213468891 0:4c181b7daee9 85 }
213468891 0:4c181b7daee9 86 }