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# Copyright 2019 Virantha N. Ekanayake |
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# |
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# Licensed under the Apache License, Version 2.0 (the "License"); |
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# you may not use this file except in compliance with the License. |
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# You may obtain a copy of the License at |
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# |
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# http://www.apache.org/licenses/LICENSE-2.0 |
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# |
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# Unless required by applicable law or agreed to in writing, software |
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# distributed under the License is distributed on an "AS IS" BASIS, |
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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# See the License for the specific language governing permissions and |
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# limitations under the License. |
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"""All sound related output devices |
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""" |
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from curio import sleep, current_task, spawn # Needed for motor speed ramp |
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from enum import Enum, IntEnum |
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from struct import pack |
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from .peripheral import Peripheral |
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class DuploSpeaker(Peripheral): |
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"""Plays one of five preset sounds through the Duplo built-in speaker |
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See :class:`sounds` for the list. |
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Examples:: |
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@attach(DuploSpeaker, name='speaker') |
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... |
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await self.speaker.play_sound(DuploSpeaker.sounds.brake) |
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Notes: |
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Uses Mode 1 to play the presets |
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""" |
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_sensor_id = 0x002A |
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sounds = Enum('sounds', { 'brake': 3, |
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'station': 5, |
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'water': 7, |
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'horn': 9, |
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'steam': 10, |
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}) |
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async def activate_updates(self): |
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"""For some reason, even though the speaker is an output device |
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we need to send a Port Input Format Setup command (0x41) to enable |
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notifications. Otherwise, none of the sound output commands will play. This function |
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is called automatically after this sensor is attached. |
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""" |
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mode = 1 |
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b = [0x00, 0x41, self.port, mode, 0x01, 0x00, 0x00, 0x00, 0x01] |
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await self.send_message('Activate DUPLO Speaker: port {self.port}', b) |
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async def play_sound(self, sound): |
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assert isinstance(sound, self.sounds), 'Can only play sounds that are enums (DuploSpeaker.sounds.brake, etc)' |
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mode = 1 |
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self.message_info(f'Playing sound {sound.name}:{sound.value}') |
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await self.set_output(mode, sound.value) |
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virantha /
bricknil
