changed logfilname. Now logs appears in

main.c

@@ -1162,7 +1162,7 @@ int main(int argc, char** argv) {
 		time_t seconds;
 		time(&seconds);
         char logfilename[] = "                                                 ";
-		sprintf(&logfilename, "received_data_%ld.csv", seconds);
+		sprintf(&logfilename, "data/received_data_%ld.csv", seconds);
 		//logfile_ptr = fopen(logfilename, "w");
 		FILE *logfile_ptr;
 		logfile_ptr = fopen(logfilename, "a");