1 files changed, 6 insertions, 1 deletions
diff --git a/rfGen.py b/rfGen.py
index 0fbca7b..19ae017 100644
--- a/rfGen.py
+++ b/rfGen.py
@@ -26,7 +26,12 @@ class rfGenLMX2487:
 
     def sendSerialCmd(self, cmd):
         self.connection.write(bytes(cmd+'\r','ascii'))
-        resp = self.connection.read_until(terminator=b'> ')
+        if "3.4" == serial.__version__:
+            # older version style
+            resp = self.connection.read_until(terminator=b'> ')
+        else:
+            # new style after 20180616
+            resp = self.connection.read_until(expected=b'> ')
         resp = resp.decode('utf-8')
         self.add2log(resp)
         return resp