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class Accelerometer(object):
'''Accelerometer facade.
'''
@property
def acceleration(self):
'''Property that returns values of the current acceleration
sensors, as a (x, y, z) tuple. Returns (None, None, None)
if no data is currently available.
'''
return self.get_acceleration()
def enable(self):
'''Activate the accelerometer sensor. Throws an error if the
hardware is not available or not implemented on.
'''
self._enable()
def disable(self):
'''Disable the accelerometer sensor.
'''
self._disable()
def get_acceleration(self):
return self._get_acceleration()
# private
def _enable(self):
raise NotImplementedError()
def _disable(self):
raise NotImplementedError()
def _get_acceleration(self):
raise NotImplementedError()
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