TinyGsmClientSIM808.h

 
#ifndef TinyGsmClientSIM808_h
#define TinyGsmClientSIM808_h
 
#include "TinyGsmClientSIM800.h"
 
class TinyGsmSim808: public TinyGsmSim800
{
 
public:
 
    explicit TinyGsmSim808(Stream& stream)
        : TinyGsmSim800(stream)
    {}
 
    /*
     * GPS location functions
     */
 
    // enable GPS
    bool enableGPS()
    {
        uint16_t state;
 
        sendAT(GF("+CGNSPWR=1"));
        if (waitResponse() != 1) {
            return false;
        }
 
        return true;
    }
 
    bool disableGPS()
    {
        uint16_t state;
 
        sendAT(GF("+CGNSPWR=0"));
        if (waitResponse() != 1) {
            return false;
        }
 
        return true;
    }
 
    // get the RAW GPS output
    // works only with ans SIM808 V2
    String getGPSraw()
    {
        sendAT(GF("+CGNSINF"));
        if (waitResponse(GF(GSM_NL "+CGNSINF:")) != 1) {
            return "";
        }
        String res = stream.readStringUntil('\n');
        waitResponse();
        res.trim();
        return res;
    }
 
    // get GPS informations
    // works only with ans SIM808 V2
    bool getGPS(float *lat, float *lon, float *speed=0, int *alt=0, int *vsat=0, int *usat=0)
    {
        //String buffer = "";
        char chr_buffer[12];
        bool fix = false;
 
        sendAT(GF("+CGNSINF"));
        if (waitResponse(GF(GSM_NL "+CGNSINF:")) != 1) {
            return false;
        }
 
        stream.readStringUntil(','); // mode
        if ( stream.readStringUntil(',').toInt() == 1 ) {
            fix = true;
        }
        stream.readStringUntil(','); //utctime
        *lat =  stream.readStringUntil(',').toFloat(); //lat
        *lon =  stream.readStringUntil(',').toFloat(); //lon
        if (alt != NULL) {
            *alt =  stream.readStringUntil(',').toFloat();    //lon
        }
        if (speed != NULL) {
            *speed = stream.readStringUntil(',').toFloat();    //speed
        }
        stream.readStringUntil(',');
        stream.readStringUntil(',');
        stream.readStringUntil(',');
        stream.readStringUntil(',');
        stream.readStringUntil(',');
        stream.readStringUntil(',');
        stream.readStringUntil(',');
        if (vsat != NULL) {
            *vsat = stream.readStringUntil(',').toInt();    //viewed satelites
        }
        if (usat != NULL) {
            *usat = stream.readStringUntil(',').toInt();    //used satelites
        }
        stream.readStringUntil('\n');
 
        waitResponse();
 
        return fix;
    }
 
    // get GPS time
    // works only with SIM808 V2
    bool getGPSTime(int *year, int *month, int *day, int *hour, int *minute, int *second)
    {
        bool fix = false;
        char chr_buffer[12];
        sendAT(GF("+CGNSINF"));
        if (waitResponse(GF(GSM_NL "+CGNSINF:")) != 1) {
            return false;
        }
 
        for (int i = 0; i < 3; i++) {
            String buffer = stream.readStringUntil(',');
            buffer.toCharArray(chr_buffer, sizeof(chr_buffer));
            switch (i) {
            case 0:
                //mode
                break;
            case 1:
                //fixstatus
                if ( buffer.toInt() == 1 ) {
                    fix = buffer.toInt();
                }
                break;
            case 2:
                *year = buffer.substring(0,4).toInt();
                *month = buffer.substring(4,6).toInt();
                *day = buffer.substring(6,8).toInt();
                *hour = buffer.substring(8,10).toInt();
                *minute = buffer.substring(10,12).toInt();
                *second = buffer.substring(12,14).toInt();
                break;
 
            default:
                // if nothing else matches, do the default
                // default is optional
                break;
            }
        }
        String res = stream.readStringUntil('\n');
        waitResponse();
 
        if (fix) {
            return true;
        } else {
            return false;
        }
    }
 
};
 
#endif