weather_station/Arduino/Transmission/Setup.ino

void setupSIM800L() {
  // Wait until the module is ready to accept AT commands
  while(!sim800l->isReady()) {
    Serial.println(F("Problem to initialize AT command, retry in 1 sec"));
    delay(1000);
  }
  Serial.println(F("Setup Complete!"));

  // Wait for the GSM signal
  uint8_t signal = sim800l->getSignal();
  while(signal <= 0) {
    delay(1000);
    signal = sim800l->getSignal();
  }
  Serial.print(F("Signal OK (strenght: "));
  Serial.print(signal);
  Serial.println(F(")"));
  delay(1000);

  // Wait for operator network registration (national or roaming network)
  NetworkRegistration network = sim800l->getRegistrationStatus();
  while(network != REGISTERED_HOME && network != REGISTERED_ROAMING) {
    delay(1000);
    network = sim800l->getRegistrationStatus();
  }
  Serial.println(F("Network registration OK"));
  delay(1000);

  // Setup APN for GPRS configuration
  bool success = sim800l->setupGPRS(APN);
  while(!success) {
    success = sim800l->setupGPRS(APN);
    delay(5000);
  }
  Serial.println(F("GPRS config OK"));
}


void setupBME280() {
  Wire.begin();

  while(!bme.begin()) {
    Serial.println("Could not find BME280 sensor!");
    delay(1000);
  }

  switch(bme.chipModel()) {
     case BME280::ChipModel_BME280:
       Serial.println("Found BME280 sensor! Success.");
       break;
     case BME280::ChipModel_BMP280:
       Serial.println("Found BMP280 sensor! No Humidity available.");
       break;
     default:
       Serial.println("Found UNKNOWN sensor! Error!");
  }
}