Return a value instead of a 1-tuple for who_am_i

controller/python/controller.py

@@ -31,7 +31,7 @@ class Controller:
     def who_am_i(self) -> int:
         """Check that the motors controller board is present. This
         should return the same value as Controller.I2C_ADDR."""
-        return self._read(self.WHO_AM_I, 1, "B")
+        return self._read(self.WHO_AM_I, 1, "B")[0]
 
     def set_max_percentage(self, percent: float):
         """Set the maximum percentage of power which will be used