def main():
args = cli_aruments()
try:
hci = Adapter(args.adapter)
except BluezError as e:
print(str(e), file=sys.stderr)
sys.exit(1)
loop = MainLoop.new(None, False)
if args.scan_duration:
timeout_add_seconds(args.scan_duration, scan_timeout, loop)
hci.onPropertiesChanged(adapter_changed, loop)
hci.onDeviceAdded(device_found, args.properties, init=True, some="Foo")
# hci.onDeviceRemoved(device_removed, args.properties)
# hci.scan()
# for d in hci.devices():
# device_found(d, d.properties, args.properties)
try:
loop.run()
except (KeyboardInterrupt, SystemExit):
pass
finally:
try:
hci.onDeviceAdded(None)
hci.onPropertiesChanged(None)
hci.scan(enable=False)
hci.clear()
except:
pass
def __init__(self, timeout_secs, loop):
self.timeout = timeout_secs
self.remaining = timeout_secs
self.canceled = False
def mainloop_quit():
loop.quit()
self.expired_cb = mainloop_quit
timeout_add_seconds(1, self._tick)
def init_adapter(self):
self.adapter = bluez.Adapter(self.adapter_name)
self.adapter.onPropertiesChanged(adapter_changed, state_manager=self)
self.adapter.onDeviceAdded(device_discovered, self, init=True)
# queue function for execution in GLib mainloop
self.adapter.onDeviceRemoved(device_removed, self)
# queue function for execution in GLib mainloop
timeout_add_seconds(0, start_scanning, self)
# read a value every 10 seconds
timeout_add_seconds(10, read_timer_function, self)
def period_save_thread(self):
if self.period_save:
if self.__file_name and self.is_modified \
and not self.__pause_period:
idle_add(self.save_to_file)
timeout_add_seconds(self.period_save, self.period_save_thread)
def peripheral_changed(peripheral, changed_values, state_manager):
'''
changed event callback for peripherals
peripheral: bluez.Device
changed_values: dict
state_manager: StateManager
'''
# ignore these (peripheral.name == BD addr)
d_addr = peripheral.name
if not d_addr in state_manager.peripherals:
return
state_manager.logger.info('Device status changed: %s: %s', d_addr,
str(changed_values))
if 'Connected' in changed_values:
if not changed_values['Connected']:
state_manager.logger.error('Disconnected: %s %s', d_addr,
str(peripheral))
try:
state_manager.adapter.scan(filters=state_manager.scan_filters)
except Exception as e:
state_manager.logger.error('Enableling scan failed: %s',
str(e))
else:
state_manager.logger.info('Connected: %s %s', d_addr,
str(peripheral))
if 'ServicesResolved' in changed_values:
if changed_values['ServicesResolved']:
try:
# load gatt database uuid matching
state_manager.logger.info('Building GATT object: %s', d_addr)
state_manager.peripherals[d_addr] = bluez.Gatt(
peripheral,
state_manager.gatt_description,
warn_unmatched=False)
state_manager.logger.info('Done GATT object: %s', d_addr)
except Exception as e:
state_manager.logger.error('ServiceResolved: %s: %s', d_addr,
str(e))
state_manager.peripherals[d_addr] = None
# setup all callbacks
if state_manager.peripherals[d_addr]:
try:
enable_notifications(state_manager.peripherals[d_addr],
state_manager)
timeout_add_seconds(0, read_all,
state_manager.peripherals[d_addr],
state_manager)
except bluez.BluezError as e:
state_manager.logger.error('ServiceResolved: %s: %s',
d_addr, str(e))
else:
# clear gatt database mapping and callbacks
if state_manager.peripherals[d_addr]:
state_manager.peripherals[d_addr].clear()
state_manager.peripherals[d_addr] = None
if 'RSSI' in changed_values and not peripheral.connected:
#pass
device_discovered(peripheral, changed_values, state_manager)
def main():
parser = ArgumentParser(description="bluetooth tester")
parser.add_argument(
"-i",
"--adapter",
metavar="hciX",
default=def_adapter,
help="bluetooh adapter to use (default={})".format(def_adapter),
)
parser.add_argument(
"-a",
"--device",
metavar="addr",
default=None,
help="device address to connect to",
)
parser.add_argument(
"-p",
"--pair",
default=False,
action="store_true",
help="Send pairing request to device, if not paired (Needs an agent)",
)
parser.add_argument("-k",
"--keep",
default=False,
action="store_true",
help="keep connection alive")
parser.add_argument(
"-l",
"--loop",
default=False,
action="store_true",
help="loop requesting info (sleeps 1s)",
)
parser.add_argument(
"-w",
"--wait",
metavar="sec",
default=1,
type=int,
help="time to wait before starting to read",
)
args = parser.parse_args()
print("Scanning on: {}".format(args.adapter))
try:
adapter = Adapter(args.adapter)
except BluezDoesNotExistError as e:
print(str(e))
sys.exit(2)
devs = adapter.devices()
dev = None
for d in devs:
da = d.address()
if da and da.upper() == args.device.upper():
print("Found {}: {}".format(args.device, d))
dev = d
if not dev:
adapter.scan()
sleep(3)
sr = adapter.devices()
for d in sr:
da = d.address()
if da and da.upper() == args.device.upper():
print("Found {}: {}".format(args.device, d))
dev = d
if not dev:
print("Could not find device nearby: {}".format(args.device))
adapter.scan(enable=False)
sys.exit(1)
adapter.scan(enable=False)
if dev.connected():
print("Already connected: {}".format(dev))
else:
if args.pair:
if not dev.paired():
print("Device is not paired")
print("Connecting/pairing to: {}".format(str(dev)))
dev.pair()
# waait for paring-agent
wait_secs = 60
while wait_secs > 0 and not dev.paired():
wait_secs -= 1
sleep(1)
if not dev.paired():
print("Pairing failed")
sys.exit(1)
if not dev.trusted():
dev.trust(True)
print("Device is now trusted")
if not dev.connect():
print("Connecting failed")
sys.exit(1)
gatt = Gatt(dev, [device_information])
gatt.resolve()
if not dev.services_resolved:
print(
"Waited not long enough for service resolving, did not find uuids")
sys.exit(1)
print("Service UUIDs resolved")
dev_info = gatt.device_information # pylint: disable=no-member
for dinfo in dev_info.chars:
if dinfo.obj:
print(dinfo.name, ":", dinfo.read(options={"timeout": 4}))
if args.wait > 0:
sleep(args.wait)
if args.loop:
loop = MainLoop.new(None, False)
for dinfo_char in dev_info.chars:
if dinfo_char.obj:
# add callback for printing if new value is avalable
dinfo_char.onPropertiesChanged(print_char)
# add cyclic read every 1 sec
timeout_add_seconds(1, read_char, dinfo_char)
try:
loop.run()
except (KeyboardInterrupt, SystemExit) as e:
print("Interupted:", str(e))
if not args.keep:
dev.disconnect()
def period_save_thread(self):
if self.period_save:
if self.__file_name and self.is_modified:
thread = Thread(target=self.save_to_file)
thread.start()
timeout_add_seconds(self.period_save, self.period_save_thread)
