Merge pull request #10 from noahcoad/master

fix crc calc for non-express boards

Author: tannewt

adafruit_lc709203f.py

@@ -171,7 +171,8 @@ def _generate_crc(self, data):
                     crc = (crc << 1) ^ 0x07
                 else:
                     crc <<= 1
-        return crc & 0xFF
+                crc &= 0xFF
+        return crc
 
     def _read_word(self, command):
         self._buf[0] = LC709203F_I2CADDR_DEFAULT * 2  # write byte