1# Copyright 2021-2022 Google LLC 2# 3# Licensed under the Apache License, Version 2.0 (the "License"); 4# you may not use this file except in compliance with the License. 5# You may obtain a copy of the License at 6# 7# https://www.apache.org/licenses/LICENSE-2.0 8# 9# Unless required by applicable law or agreed to in writing, software 10# distributed under the License is distributed on an "AS IS" BASIS, 11# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12# See the License for the specific language governing permissions and 13# limitations under the License. 14 15# ----------------------------------------------------------------------------- 16# Imports 17# ----------------------------------------------------------------------------- 18from bumble.device import Device 19from bumble.transport.common import PacketParser 20 21 22# ----------------------------------------------------------------------------- 23class ScannerListener(Device.Listener): 24 def on_advertisement(self, advertisement): 25 address_type_string = ('P', 'R', 'PI', 'RI')[advertisement.address.address_type] 26 print( 27 f'>>> {advertisement.address} [{address_type_string}]: RSSI={advertisement.rssi}, {advertisement.ad_data}' 28 ) 29 30 31class HciSource: 32 def __init__(self, host_source): 33 self.parser = PacketParser() 34 host_source.delegate = self 35 36 def set_packet_sink(self, sink): 37 self.parser.set_packet_sink(sink) 38 39 # host source delegation 40 def data_received(self, data): 41 print('*** DATA from JS:', data) 42 buffer = bytes(data.to_py()) 43 self.parser.feed_data(buffer) 44 45 46# class HciSink: 47# def __init__(self, host_sink): 48# self.host_sink = host_sink 49 50# def on_packet(self, packet): 51# print(f'>>> PACKET from Python: {packet}') 52# self.host_sink.on_packet(packet) 53 54 55# ----------------------------------------------------------------------------- 56async def main(host_source, host_sink): 57 print('### Starting Scanner') 58 hci_source = HciSource(host_source) 59 hci_sink = host_sink 60 device = Device.with_hci('Bumble', 'F0:F1:F2:F3:F4:F5', hci_source, hci_sink) 61 device.listener = ScannerListener() 62 await device.power_on() 63 await device.start_scanning() 64 65 print('### Scanner started') 66