Merge pull request #1 from ScottMonaghan/ScottMonaghan-patch-1

keep _USE_PULSEIO false for NotImplementedError

Author: ScottMonaghan

adafruit_hcsr04.py

@@ -44,7 +44,7 @@
     from pulseio import PulseIn
 
     _USE_PULSEIO = True
-except ImportError:
+except (ImportError, NotImplementedError):
     pass  # This is OK, we'll try to bitbang it!
 
 __version__ = "0.0.0+auto.0"