From fafe86d2720310e148c1290c0a8b1f9a0dc56143 Mon Sep 17 00:00:00 2001
From: alanbjohnston <alan.b.johnston@gmail.com>
Date: Sun, 11 Jul 2021 18:56:11 -0400
Subject: [PATCH] only write telem.txt if payload present

---
 main.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/main.c b/main.c
index 69a8bf33..71b973bf 100644
--- a/main.c
+++ b/main.c
@@ -1056,6 +1056,7 @@ void get_tlm(void) {
 	    
     } else {  // APRS using rpitx
 
+     if (paylad == ON) {	    
       telem_file = fopen("/home/pi/CubeSatSim/telem.txt", "a");
       printf("Writing payload string\n");
       time_t timeStamp;
@@ -1067,7 +1068,7 @@ void get_tlm(void) {
       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, gps_str);  // add GPS data to the end
 	    
       strcat(str, footer_str1);