from sensor import *
import e32


class DemoApp():

    def __init__(self):
        self.ALS = AmbientLightData()
        self.ALS.set_callback(data_callback=self.my_callback)

    def my_callback(self):
        print 'ALS:', get_logicalname(AmbientLightData,
                                        self.ALS.ambient_light)
        print 'Timestamp:', self.ALS.timestamp

    def run(self):
        self.ALS.start_listening()

if __name__ == '__main__':
    d = DemoApp()
    d.run()
    e32.ao_sleep(30)
    d.ALS.stop_listening()
    print "Exiting Ambient Light"