//Declaring variables
  double distance = distanceSensor.measureDistanceCm();
  String datastring1 = "";
  char distanceString[25];
  char sendMessage[100] = {"\0"};

  //Assemble char[]
  datastring1 += dtostrf(distance, 0, 3, distanceString);
  strncat(sendMessage, "******* CURRENT DATA ******* \n");
  strncat(sendMessage, "Distance : ");
  strncat(sendMessage, distanceString);

  //Convert char[] to uint8_t[]
  int n = sizeof(sendMessage);
  uint8_t datasend[n+1];
  strncpy((char *)datasend, sendMessage);
  Serial.println((char *)datasend);

  // send data
  rf95.send(datasend, sizeof(datasend));
  rf95.waitPacketSent();