From fb12d2984b82f4bb072cbd77cb6eff1814c05940 Mon Sep 17 00:00:00 2001
From: alanbjohnston <alan.b.johnston@gmail.com>
Date: Fri, 7 Apr 2023 16:08:50 -0400
Subject: [PATCH] only print Serial1 if available data

---
 cubesatsim/cubesatsim.ino | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/cubesatsim/cubesatsim.ino b/cubesatsim/cubesatsim.ino
index 0f102e69..0f4c52fb 100644
--- a/cubesatsim/cubesatsim.ino
+++ b/cubesatsim/cubesatsim.ino
@@ -3124,9 +3124,11 @@ void payload_OK_only()
 	  
   
     blink(50);
-    char result = Serial1.read();
+    if (Serial1.available()) {	  
+      char result = Serial1.read();
 //    Serial1.println(result);
-    Serial.println(result);
+      Serial.println(result);
+    }	    
     if (result == 'R') {
       Serial1.println("OK");
       delay(100);