Merge pull request #31 from dherrada/master

Value for ADS1015 has been scaled to 16 bits

Author: tannewt

adafruit_ads1x15/analog_in.py

@@ -70,7 +70,8 @@ def __init__(self, ads, positive_pin, negative_pin=None):
     @property
     def value(self):
         """Returns the value of an ADC pin as an integer."""
-        return self._ads.read(self._pin_setting, is_differential=self.is_differential)
+        return self._ads.read(self._pin_setting,
+                              is_differential=self.is_differential) << (16 - self._ads.bits)
 
     @property
     def voltage(self):