create_boolean_listener()

Create a listener triggered when the value of one (or multiple) boolean sensor(s) go(es) into a specific logic state.

Note: This method only works with boolean sensors. Remember the types of sensors in the Sensors page.

Reference

Arguments

Return

None

Exceptions

See the Full List of Exceptions

Callback Arguments

Callback does not receive any arguments.

Examples

1. Line detection

Detect a line by any of the line sensors:

async def setup(self):
    ...
    self.sensors = await self.enable_controller('sensors')
    self.sensors.create_boolean_listener(listener_name='line',
                                           callback = self.line_callback,
                                           sensor_paths = ['/line_sensor/1', '/line_sensor/2', '/line_sensor/3'],
                                           logic_state = True)
    ...
    
async def loop(self):
    # Doing other stuff
    ...
    
def line_callback(self):
        print('line detected!')