add telem file write

main.c

@@ -18,7 +18,8 @@
  *  You should have received a copy of the GNU General Public License
  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
-
+ 
+FILE *telem_file;
 
 #include "main.h"
 
@@ -120,6 +121,14 @@ int main(int argc, char * argv[]) {
     }
   } 
 
+  // Open telemetry file with STEM Payload Data
+  telem_file = fopen("/home/pi/CubeSatSim/telem.txt", "a");
+  if (telem_file == NULL) 
+    printf("Error opening telem file\n");
+  fclose(telem_file);
+  printf("Opened telem file\n");
+	
+	
   // Open configuration file with callsign and reset count	
   FILE * config_file = fopen("/home/pi/CubeSatSim/sim.cfg", "r");
   if (config_file == NULL) {
@@ -1079,6 +1088,20 @@ void get_tlm(void) {
 	    
     } else {  // APRS using rpitx
 	    
+     if (payload == ON) {	    
+      telem_file = fopen("/home/pi/CubeSatSim/telem.txt", "a");
+      printf("Writing payload string\n");
+      time_t timeStamp;
+      time(&timeStamp);   // get timestamp 
+//      printf("Timestamp: %s\n", ctime(&timeStamp));
+	    
+      char timeStampNoNl[31];    
+      snprintf(timeStampNoNl, 30, "%.24s", ctime(&timeStamp)); 
+      printf("TimeStamp: %s\n", timeStampNoNl);
+      fprintf(telem_file, "%s %s\n", timeStampNoNl, sensor_payload);	 // write telemetry string to telem.txt file    
+      fclose(telem_file);
+    }	 	    
+	    
       strcat(str, footer_str1);
 //      strcat(str, call);
       strcat(str, footer_str);