Changed code from PR #17 from 64 bytes to 32 bytes

Author: evaherrada

adafruit_gps.py

@@ -187,14 +187,12 @@ def _parse_sentence(self):
         # pylint: disable=len-as-condition
         # This needs to be refactored when it can be tested.
 
-        # Only continue if we have at least 64 bytes in the input buffer
-        # I've commented this out for now as not all sentences are 64 bytes long
-        """
-        if self._uart.in_waiting < 64:
+        # Only continue if we have at least 32 bytes in the input buffer
+        if self._uart.in_waiting < 32:
             return None
-        """
 
         sentence = self._uart.readline()
+        print(len(sentence))
         if sentence is None or sentence == b'' or len(sentence) < 1:
             return None
         try: