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 import PacketParser 20 21 22# ----------------------------------------------------------------------------- 23class ScannerListener(Device.Listener): 24 def on_advertisement(self, address, ad_data, rssi, connectable): 25 address_type_string = ('P', 'R', 'PI', 'RI')[address.address_type] 26 print(f'>>> {address} [{address_type_string}]: RSSI={rssi}, {ad_data}') 27 28 29class HciSource: 30 def __init__(self, host_source): 31 self.parser = PacketParser() 32 host_source.delegate = self 33 34 def set_packet_sink(self, sink): 35 self.parser.set_packet_sink(sink) 36 37 # host source delegation 38 def data_received(self, data): 39 print('*** DATA from JS:', data) 40 buffer = bytes(data.to_py()) 41 self.parser.feed_data(buffer) 42 43 44# class HciSink: 45# def __init__(self, host_sink): 46# self.host_sink = host_sink 47 48# def on_packet(self, packet): 49# print(f'>>> PACKET from Python: {packet}') 50# self.host_sink.on_packet(packet) 51 52 53# ----------------------------------------------------------------------------- 54async def main(host_source, host_sink): 55 print('### Starting Scanner') 56 hci_source = HciSource(host_source) 57 hci_sink = host_sink 58 device = Device.with_hci('Bumble', 'F0:F1:F2:F3:F4:F5', hci_source, hci_sink) 59 device.listener = ScannerListener() 60 await device.power_on() 61 await device.start_scanning() 62 63 print('### Scanner started') 64