fix bug

Author: anla-xu

pymycobot/common.py

@@ -389,7 +389,7 @@ def _process_received(self, data, genre, arm=6):
 
         unique_data = [ProtocolCode.GET_BASIC_INPUT, ProtocolCode.GET_DIGITAL_INPUT]
 
-        if cmd_id in unique_data:
+        if cmd_id in unique_data and arm != 14:
             if arm == 12:
                 data_pos = header_i + 6
             else:
@@ -400,7 +400,6 @@ def _process_received(self, data, genre, arm=6):
                 data_pos = header_i + 4
             elif arm == 12:
                 data_pos = header_i + 5
-
         valid_data = data[data_pos : data_pos + data_len]
 
         # process valid data