keep looping sign-in when using with sim7000 (tinygsm) (sim-card instead of wifi)

[komkritc]

something wrong about the time since the sim7000 cannot sync the time from ntp-time sever.

thank you for great lib & best regards

[mobizt]

This library supports only ESP32 and ESP8266 that work on WiFi only.

[domingguss]

int updateFromGsmTime()
  //Serial.printf("GSM Time: %s\n", modem.getGSMDateTime(DATE_FULL).c_str());
  int     GSMyear = 0;
  int     GSMmonth = 0;
  int     GSMdate = 0;
  int     GSMhours = 0;
  int     GSMminutes = 0;
  int     GSMseconds = 0;
  float   GSMtimezone = 0;
  time_t  GSMUTCtime = 0;

  if (modem.getNetworkTime(&GSMyear, &GSMmonth, &GSMdate, &GSMhours, &GSMminutes, &GSMseconds, &GSMtimezone))
  {
    struct tm s;
    s.tm_sec  = (GSMseconds);
    s.tm_min  = (GSMminutes);
    s.tm_hour = (GSMhours);
    s.tm_mday = (GSMdate);
    s.tm_mon  = (GSMmonth - 1);
    s.tm_year = (GSMyear - 1900);
    GSMUTCtime   = mktime(&s);

    GSheet.setSystemTime(GSMUTCtime);
    time_t now = getTime();

    Serial.printf("GSM Time:    %s",  ctime(&GSMUTCtime));
    Serial.printf("getTime:    %s",  ctime(&now));

    if (GSMUTCtime > 1615155060) {      //  check for valid time, not 1939!
      setenv("TZ", "CET-0CET-0,M3.5.0/02:00:00,M10.5.0/03:00:00", 1);
      tzset();
      struct timeval tv;
      memset(&tv, 0, sizeof(struct timeval));
      tv.tv_sec = GSMUTCtime;
      settimeofday(&tv, NULL);
    }
    return 1;    
  }
  return 0;
}

I'm actually using this with TinyGSM and am ignoring wifi en ethernet on my esp32. I also use the fix from my PR (#27)

i call this function updateFromGsmTime(), and now i get a little further, but I now receive this error:

[3522] Initializing modem...
[3522] ### TinyGSM Version: 0.11.7
[3522] ### TinyGSM Compiled Module:  TinyGsmClientSIM7080
[3836] ### Modem: SIMCOM SIM7080
[3852] Modem Name: SIMCOM SIM7080
[3856] Modem Info: R1951.04
Connecting to apn
[7052] ### Daylight savings time state updated.
[7053] ### Network time and time zone updated.
ESP Google Sheet Client v1.4.3

GSM Time:    Tue Jan 30 00:20:29 2024
getTime:    Tue Jan 30 00:20:29 2024
Token info: type = OAuth2.0 access token, status = on initializing
Token info: type = OAuth2.0 access token, status = on signing
Token info: type = OAuth2.0 access token, status = on exchange request
Token info: type = OAuth2.0 access token, status = error
Token error: code: -4, message: connection lost
Token info: type = OAuth2.0 access token, status = on exchange request
Token info: type = OAuth2.0 access token, status = error
Token error: code: -4, message: connection lost
[..]

Does anyone know what error -4 means? @mobizt maybe?

[mobizt]

@domingguss

It is because of no network detected.

Do you add this macro #define TINY_GSM_MODEM_SIM7080 in this following file?

https://github.com/mobizt/ESP-Google-Sheet-Client/blob/master/src/ESP_Google_Sheet_Client_FS_Config.h

I will check this tomorrow to confirm.

During this time, I'm so busy and sorry for late reply.