update

loop/SARA_send_data_v2.py

@@ -427,6 +427,16 @@ try:
     print("-> Getting LTE signal <-")
     ser_sara.write(b'AT+CSQ\r')
     response2 = read_complete_response(ser_sara, wait_for_lines=["OK"])
+
+    #Here it's possible that the SARA do not repond at all
+    #-> try to establish connection
+    #-> end loop, no need to continue
+    if response2 is None or response2 == "":
+        print("No answer from SARA module")
+        print('🛑STOP LOOP🛑')
+        print("<hr>")
+        sys.exit()
+
     print('<p class="text-danger-emphasis">')
     print(response2)
     print("</p>", end="")