Merge pull request #9 from FoamyGuy/value_return_bool

comparison instead of bool function

Author: tannewt

adafruit_pcf8575.py

@@ -104,7 +104,7 @@ def read_pin(self, pin: int) -> bool:
         :param int pin: The pin number
         """
 
-        return bool((self.read_gpio() >> pin) & 0x1)
+        return ((self.read_gpio() >> pin) & 0x1) == 1
 
 
 """