def _scan(self):
        """ This function scans for iBeacon packets, save them in a list, 
        order packets by RSSI and update near beacons attrs accordingly """
        def _scans_callback(bt_addr, rssi, packet, additional_info):
            beacon = IBeacon(bt_addr, packet.uuid, packet.major, packet.minor,
                             packet.tx_power, rssi)
            if not self._is_beacon_in_list(beacon):
                self._beacons_list.append(beacon)

        while (self._run_flag):
            # clear beacon list
            self._beacons_list = []
            # instance the scanner
            scanner = BeaconScanner(
                _scans_callback,
                device_filter=IBeaconFilter(uuid=self._uuid_filter))
            # perform the scan
            scanner.start()
            time.sleep(self._scan_tick)
            scanner.stop()
            # order the beacons list by RSSI (Power received)
            if len(self._beacons_list) >= 1:
                self._order_beacons_list()
                self._last_nearest_beacon = self._nearest_beacon
                self._nearest_beacon = self._beacons_list[0]
                logging.info("Nearest beacon: {}".format(self._nearest_beacon))
            else:
                self._last_nearest_beacon = self._nearest_beacon
                self._nearest_beacon = None
                logging.info("No beacons found in this scan")
            # evaluate if nearest beacon has changes, if so, invoke changes callback
            if self._check_if_nearest_beacon_changes():
                self._invoke_changes_callback()
def scan_ibeacons():
    # callback to show beacons read
    def callback(bt_addr, rssi, packet, additional_info):
        print("[ MAC: {} | RSSI: {} ] - {}".format(bt_addr, rssi, packet))

    # intance the parser
    parser = argparse.ArgumentParser()
    # parse uuid argument
    parser.add_argument(
        '--uuid',
        action='store',
        dest='uuid',
        help='iBeacon UUID. Def: {}'.format(DEFAULT_BEACON_UUID))
    # parse scan_time argument
    parser.add_argument('--time',
                        action='store',
                        dest='scan_time',
                        help='Scan time. Def: {}'.format(DEFAULT_TIME_TO_SCAN))
    # get result of parse arguments in args
    args = parser.parse_args()
    uuid = args.uuid if args.uuid is not None else DEFAULT_BEACON_UUID
    scan_time = args.scan_time if args.scan_time is not None else DEFAULT_TIME_TO_SCAN
    # scan for all iBeacon advertisements from beacons with the specified uuid
    scanner = BeaconScanner(callback, device_filter=IBeaconFilter(uuid=uuid))
    # start scanning
    print("Starting to scan beacons with UUID={} for {} seconds".format(
        uuid, scan_time))
    scanner.start()
    time.sleep(scan_time)
    scanner.stop()
    print("Scan beacons finished!")
 def run(self):
     while True:
         scanner = BeaconScanner(
             callback,
             device_filter=IBeaconFilter(
                 uuid='636f3f8f-6491-4bee-95f7-d8cc64a863b5')
         )  #"b9407f30-f5f8-466e-aff9-25556b57fe6d", major=30174, minor=5667)) #coconut2
         #my rpi beacon uuid 636f3f8f-6491-4bee-95f7-d8cc64a863b5
         scanner.start()
         time.sleep(5)
         scanner.stop()
Esempio n. 4
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def main():
    # scan for all iBeacon advertisements from beacons with the specified uuid
    scanner = BeaconScanner(
        callback,
        device_filter=IBeaconFilter(uuid="e7d61ea3-f8dd-49c8-8f2f-f2484c07acb9", major=1, minor=81)
    )

    scanner.start()
    time.sleep(120)
    scanner.stop()
    write_file(datalist)
    print('fin')
Esempio n. 5
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    def listen(self, uuid, duration):
        uuid_filter = IBeaconFilter(uuid=uuid)
        scanner = BeaconScanner(self.record_data, device_filter=uuid_filter)

        start_time = dt.datetime.now(pytz.utc)
        self.log.info('Listening for BLE beacons for {}s'.format(duration))
        scanner.start()
        while dt.datetime.now(pytz.utc) - start_time < duration:
            sleep(1)
        scanner.stop()
        self.log.info('Recorded {} temperature readings and {} gravity readings'
                      .format(len(self.data[uuid]['T']), len(self.data[uuid]['SG'])))
Esempio n. 6
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def _scan_beacons(**kwargs):
    beacons_list = []
    # read beaconstools callback
    def _scans_callback(bt_addr, rssi, packet, additional_info):
        beacon = IBeacon(bt_addr, packet.uuid, packet.major, packet.minor, packet.tx_power, rssi)
        if beacon not in beacons_list:
            beacons_list.append(beacon)
    # create and start scanner in each cycle
    beaconstools_scanner = BeaconScanner(
        _scans_callback, 
        device_filter=IBeaconFilter(uuid=kwargs['uuid_filter'])
    )
    beaconstools_scanner.start()
    time.sleep(kwargs['scan_tick'])
    beaconstools_scanner.stop()
    # return beacon_list
    return beacons_list
Esempio n. 7
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 def test_process_packet_dev_filter3(self):
     """Test processing of a packet and callback execution with ibeacon device filter."""
     callback = MagicMock()
     scanner = BeaconScanner(callback, device_filter=IBeaconFilter(major=1))
     pkt = b"\x41\x3e\x41\x02\x01\x03\x01\x35\x94\xef\xcd\xd6\x1c\x19\x02\x01\x06\x1a\xff\x4c"\
           b"\x00\x02\x15\x41\x42\x43\x44\x45\x46\x47\x48\x49\x40\x41\x42\x43\x44\x45\x46\x00"\
           b"\x01\x00\x02\xf8\xdd"
     scanner._mon.process_packet(pkt)
     self.assertEqual(callback.call_count, 1)
     args = callback.call_args[0]
     self.assertEqual(args[0], "1c:d6:cd:ef:94:35")
     self.assertEqual(args[1], -35)
     self.assertIsInstance(args[2], IBeaconAdvertisement)
     self.assertEqual(args[3], {
         "uuid": "41424344-4546-4748-4940-414243444546",
         "major": 1,
         "minor": 2
     })
Esempio n. 8
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import time
from beacontools import BeaconScanner, IBeaconFilter

def callback(bt_addr, rssi, packet, additional_info):

    if (rssi == 0):
        dist = -1.0
    ratio = rssi*1.0/packet.tx_power
    dist = (0.89976)*pow(xh,7.7095)+0.111

    print("bt_addr: %s      " %bt_addr)
    print("rssi: %d     " %rssi)
    print("Distance %d      ",dist)
    print("tx Power: %s \n" %packet.tx_power)


#1: b4:99:4c:4f:97:50  2:b4:99:4c:4f:4d:58   3:b4:99:4c:4f:9a:24
scanner = BeaconScanner(callback,device_filter=IBeaconFilter(uuid="e2c56db5-dffb-48d2-b060-d0f5a71096e0"))
print("Zona 5")
while(i<300):
    scanner.start()
    time.sleep(5)
scanner.stop()
    currentBeacon = ''
    startTime = ''
    with open('currentState.csv', newline='') as f:
        reader = csv.reader(f)
        for row in reader:
            currentState = row[0]
            currentBeacon = row[1]
            startTime = row[2]
    f.close()
    FigureItOut(minor, currentState, currentBeacon, startTime)


# scan for all iBeacon advertisements from beacons with the specified uuid
scanner = BeaconScanner(
    callback,
    device_filter=IBeaconFilter(uuid="636f3f8f-6491-4bee-95f7-d8cc64a863b5"))
scanner.start()
time.sleep(5)
scanner.stop()

#
# print('begin')
# print("<%s, %d> %s %s" % (bt_addr, rssi, packet, additional_info))
# print('bt_addr')
# print(bt_addr)
# print(type(bt_addr))
# print('rssi')
# print(rssi)
# print(type(rssi))
# print('packet')
# print(packet)
Esempio n. 10
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import time
from beacontools import BeaconScanner, IBeaconFilter


def callback(bt_addr, rssi, packet, additional_info):
    print("<%s, %d> %s %s" % (bt_addr, rssi, packet, additional_info))


# scan for all iBeacon advertisements from beacons with the specified uuid
if __name__ == "__main__":
    scanner = BeaconScanner(callback,
                            device_filter=IBeaconFilter(uuid=str(sys.argv[0])))
    print("Scanner returned : ", scanner.start())
    time.sleep(5)
    scanner.stop()
Esempio n. 11
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        data = np.array([rssi1, rssi2, rssi3])
        data = data.reshape(1, -1)
        predict = knn.predict(data)
        print(predict)
        k = cv2.waitKey(100)
        read1 = False
        read2 = False
        read3 = False
        i = i + 1


# scan for all iBeacon advertisements from beacons with the specified uuid
#1: b4:99:4c:4f:97:50  2:b4:99:4c:4f:4d:58   3:b4:99:4c:4f:9a:24
scanner = BeaconScanner(
    callback,
    device_filter=IBeaconFilter(uuid="e2c56db5-dffb-48d2-b060-d0f5a71096e0"))

X_data = []
files = glob.glob("*.png")
for myFile in files:
    print(myFile)
    image = cv2.imread(myFile)
    X_data.append(image)

cv2.imshow('ims', X_data[3])
trainFile = open("TrainData.txt")
outFile = open("TrainOut.txt")
TrainIn = readData(trainFile)
TrainOut = readData(outFile)
print(len(TrainOut))
X = np.zeros((int(len(TrainIn) / 3), 3))
Esempio n. 12
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def mqtt_iBeacon():
    scanner = BeaconScanner(callback, device_filter=IBeaconFilter(uuid="426c7565-4368-6172-6d42-6561636f6e73"))
    scanner.start()
Esempio n. 13
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        "distance": distance,
        "direction": direction
    }
    data_entries.append(entry)


if __name__ == "__main__":
    for direc in direction_list:
        direction = direc
        scenario = obstacle + " " + distance + " " + transmission_power + " " + direction
        input("Press Enter then face " + str(direction))

        scanner = BeaconScanner(
            callback,
            # remove the following line to see packets from all beacons
            device_filter=IBeaconFilter(minor=beacon_minor),
            packet_filter=None)
        time.sleep(3)
        print("Scan started at ", datetime.now())
        scanner.start()

        #loop that stops scanning after 60 samples are collected.
        #uploads all entries to database after
        while True:
            if len(data_entries) == 60:
                scanner.stop()
                print("Reached 60 samples, trial completed at ",
                      datetime.now())
                break
        try:
            x = rawcol.insert_many(data_entries)
import time
from beacontools import BeaconScanner, IBeaconFilter


def callback(bt_addr, rssi, packet, additional_info):
    print("<%s, %d> %s %s" % (bt_addr, rssi, packet, additional_info))


# scan for all iBeacon advertisements from beacons with the specified uuid
scanner = BeaconScanner(
    callback,
    device_filter=IBeaconFilter(uuid="e5b9e3a6-27e2-4c36-a257-7698da5fc140"))
scanner.start()
time.sleep(5)
scanner.stop()
Esempio n. 15
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    # 受信ペイロード長
    PAYLOAD_LEN = 58

    # デバイススキャンクラスを初期化
    # index=0 が /dev/hci0 に対応
    scanner = btle.Scanner(0)

    while True:

        try:
            logdate = datetime.datetime.today().strftime("%Y%m%d")

            # アドレス取得用スキャン
            # 対象UUIDのデバイスアドレス、RSSIを取得
            iBeaconScanner = BeaconScanner(callback,
            device_filter=IBeaconFilter(uuid=UUID))
            iBeaconScanner.start()
            time.sleep(SCAN_TIME)
            iBeaconScanner.stop()

            # スキャン結果が取得できなかった
            if len(deviceList) == 0:
               log.debug("Device not found")
               continue

            # データ取得用スキャン
            devices = scanner.scan(SCAN_TIME)


            for addr in deviceList.keys():
                log.debug("Device:"+ addr )
Esempio n. 16
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        csv.writer(f3).writerow(json_data[h] for h in header)


def getSeries(df, option):
    #option is 'temperature' 'humidity'
    major_type = df.major.unique()
    series = '['
    for i in range(len(major_type)):
        major = major_type[i]
        series += '{"name":"Major ' + str(major) + '","data":['
        for index, row in df.iterrows():
            if row['major'] == major:
                series += '[' + str(row['timestamp']) + ',' + str(
                    int(row[option])) + '],'

        series = series[:-1]
        series += ']},'

    series = series[:-1] + ']'

    return series


if __name__ == '__main__':
    scanner = BeaconScanner(
        callback,
        device_filter=IBeaconFilter(uuid=CYPRESS_BEACON_DEFAULT_UUID))
    scanner.start()

    app.run(debug=False, host=ip_addr, port=port)
Esempio n. 17
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    write_to_influxdb(data)


def write_to_influxdb(data):
    json_body = [{
        'measurement': 'result6',
        'time': datetime.datetime.utcnow(),
        'fields': data
    }]
    db.write_points(json_body)


if __name__ == "__main__":

    #Get the current UNIX time
    start = time.time()

    weather_info = get_weather_info.weather_info()
    try:

        while True:
            scanner = BeaconScanner(
                callback,
                device_filter=IBeaconFilter(
                    uuid="00050001-0000-1000-8000-00805f9b0131"))
            scanner.start()
            time.sleep(1)
            scanner.stop()
    except Exception as e:
        print(e)
Esempio n. 18
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import time
from beacontools import BeaconScanner, IBeaconFilter, EddystoneTLMFrame, EddystoneFilter, EddystoneUIDFrame, \
    EddystoneURLFrame


def callback(bt_addr, rssi, packet, additional_info):
    print('----------------------------------------------------')
    # print("%s - %d - %s - %s\n-" % (bt_addr, rssi, packet, additional_info))
    print(packet.namespace)

beacon_type = input("iBeacon / Eddystone - (i/e)")

if beacon_type == 'i':
    # scan for all iBeacon advertisements from beacons with the specified uuid
    scanner = BeaconScanner(callback,
        device_filter=IBeaconFilter(uuid="b9407f30-f5f8-466e-aff9-25556b57fe6d")
    )

    scanner.start()

    while True:
        pass

    scanner.stop()

elif beacon_type == 'e':

    try:

        if input("all/one (a/o): ") == 'o':
Esempio n. 19
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            "tags": {
                "Sensor Number": id,
                "Sensor Type": type,
                "Location": Location
            },
            "fields": {
                "value": mydict[meas]
            }
        }
        points.append(point)

    if debug_ble:
        print(points)

    return points


if __name__ == "__main__":
    '''
    Start this script in background with : " sudo beacontest.py & "
    '''
    debug_ble = False
    site.ENABLE_USER_SITE = False
    al = [1555087419, "9999"]
    scanner = BeaconScanner(callback,
                            device_filter=IBeaconFilter(uuid="2332a4c2"))
    scanner.start()
    while True:
        time.sleep(5)
    # scanner.stop()
Esempio n. 20
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    # スキャン回数:初期値
    count = initCount

    while True:

        logdate = datetime.datetime.today().strftime("%Y%m%d")

        # デバイススキャン
        if sendCount == 0 and count == initCount:
            # デバイススキャンクラスを初期化
            # index=0 が /dev/hci0 に対応
            scanner = btle.Scanner(0)

            # 対象UUIDのデバイスアドレス、RSSIを取得
            iBeaconScanner = BeaconScanner(
                callback, device_filter=IBeaconFilter(uuid=targetUuid))
            iBeaconScanner.start()
            time.sleep(scantime)
            iBeaconScanner.stop()

        # スキャン結果が取得できなかった
        if len(deviceList) == 0:
            sendCount = 0
            count = initCount
            continue

        # メイン処理実行
        main(count)

        # スキャン回数上限チェック
        if count < getDataCount:
Esempio n. 21
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    the_datetime2 = tz.localize(now + datetime.timedelta(minutes=10))
    body = {
        "timeMin": the_datetime.isoformat(),
        "timeMax": the_datetime2.isoformat(),
        "timeZone": 'US/Eastern',
        "items": [{
            "id": '*****@*****.**'
        }]
    }

    eventsResult = service.freebusy().query(body=body).execute()
    cal_dict = eventsResult[u'calendars']
    busyResult = eventsResult["calendars"]["*****@*****.**"]["busy"]

    scanner = BeaconScanner(callback,
                            device_filter=IBeaconFilter(
                                uuid="61687109-905f-4436-91f8-e602f514c96d"))
    scanner.start()
    print("scanner started")
    time.sleep(5)
    scanner.stop()
    print("scanner stopped")
    if not present:
        print("Resident is not Present")
        if len(busyResult) == 0:
            print("Resident is also not busy")
            email(user, password, destination)
        else:
            print("Resident is Busy, no email sent")
    else:
        print("Resident is Present")
Esempio n. 22
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def callback(addr, rssi, packet, additional_info):
    global data_num
    time = datetime.now()
    if conf.SHOW_MSG:
        msg = "%s,%s,%s,%s,%s,%s,%s,%s" % (time, data_num, my_id, ids[addr],
                                           addr, packet.uuid, msgs[addr], rssi)
    else:
        msg = "%s,%s,%s,%s,%s,%s,%s" % (time, data_num, my_id, ids[addr], addr,
                                        packet.uuid, rssi)
    data_num += 1
    logger.info(msg)
    s.sendall(msg.encode())

    # server_reply = s.recv(1024).decode()
    # print(server_reply)


scanner = None
if conf.SCAN_ALL_TAGS:
    scanner = BeaconScanner(callback)
else:
    device_filter = []
    for id, prop in conf.BEACONS.items():
        device_filter.append(IBeaconFilter(prop['UUID']))
    scanner = BeaconScanner(callback, device_filter=device_filter)

scanner.start()
while True:
    time.sleep(10)
s.close()  # close connection
Esempio n. 23
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    global topic

    rssi_list.append(rssi)
    if len(rssi_list) >= 10:
        rssi_list = rssi_list[-10:]
        avg_rssi = sum(sorted(rssi_list[1:8])) / 8
        print("RSSI: " + str(avg_rssi))
        print("Distance: " + str(calculateAccuracy(-64.0, avg_rssi)))

        message = {}
        message['ID'] = "PI-2"
        message['time'] = int(time.mktime(datetime.now().timetuple()))
        message['distance'] = str(calculateAccuracy(-64.0, avg_rssi))
        message['message'] = "hello"
        messageJson = json.dumps(message)

        myAWSIoTMQTTClient.publish(topic, messageJson, 1)
        print('Published topic %s: %s\n' % (topic, messageJson))


#----------------------------------------------------------------------

while True:
    scanner = BeaconScanner(callback,
                            device_filter=IBeaconFilter(
                                uuid="426c7565-4368-6172-6d42-6561636f6e73"))

    scanner.start()
    time.sleep(30)
    scanner.stop()
        lrssi2.clear()


def callback3(bt_addr, rssi, packet, additional_info):
    #print("<%s, %d> %s %s" % (bt_addr, rssi, packet, additional_info))
    lrssi3.append(rssi)
    if len(lrssi3) == 10:
        avg = sum(lrssi3) / float(len(lrssi3))
        print("Beacon 3: %f\n" % caldis1(avg))
        lrssi3.clear()


# scan for all iBeacon advertisements from beacons with the specified uuid
scanner1 = BeaconScanner(
    callback1,
    device_filter=IBeaconFilter(uuid="c401da18-6d38-4b61-9b3e-ff3790f0eeb2"))
scanner2 = BeaconScanner(
    callback2,
    device_filter=IBeaconFilter(uuid="2f234454-cf6d-4a0f-adf2-f4911ba9ffa6"))
scanner3 = BeaconScanner(
    callback3,
    device_filter=IBeaconFilter(uuid="2f4168bf-06f0-4832-8803-a8f8472d2479"))
scanner1.start()
scanner2.start()
scanner3.start()
while (1):
    time.sleep(5)
scanner1.stop()
scanner2.stop()
scanner3.stop()
Esempio n. 25
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#
# )

# IBeaconFilter(uuid="fda50693-a4e2-4fb1-afcf-c6eb07647825"),
# IBeaconFilter(uuid="d546df97-4757-47ef-be09-3e2dcbdd0c77")
# IBeaconFilter(uuid="426c7565-4368-6172-6d42-6561636f6e73"),
# scanner.start()
# time.sleep(10)
# scanner.stop()

# # scan for all iBeacon advertisements regardless from which beacon
scanner1 = BeaconScanner(
    callback,
    packet_filter=IBeaconAdvertisement,
    device_filter=[
        IBeaconFilter(uuid="fda50693-a4e2-4fb1-afcf-c6eb07647825"),
        IBeaconFilter(uuid="d546df97-4757-47ef-be09-3e2dcbdd0c77"),
        IBeaconFilter(uuid="426c7565-4368-6172-6d42-6561636f6e73"),
        IBeaconFilter(uuid="526c7565-4368-6172-6d42-6561636f6e73"),
    ],
    scan_parameters={
        "interval_ms": 100,
        "window_ms": 90
    })
# scanner2 = BeaconScanner(callback,
#     packet_filter=IBeaconAdvertisement,
#     device_filter=[IBeaconFilter(uuid="d546df97-4757-47ef-be09-3e2dcbdd0c77")],
#     scan_parameters={"interval_ms":100, "window_ms":90}
# )
# scanner3 = BeaconScanner(callback,
#     packet_filter=IBeaconAdvertisement,
Esempio n. 26
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import websockets
import asyncio

SERVER = "localhost"
PORT = 8081


async def post(output):
    uri = f"ws://{SERVER}:{PORT}"
    async with websockets.connect(uri) as websocket:
        await websocket.send(output)
        # print(await websocket.recv())


def callback(bt_addr, rssi, packet, additional_info):
    print(f"sending RSSI: {rssi}")
    output = json.dumps({
        'tool_id': f"{additional_info['major']}.{additional_info['minor']}",
        'recv_bd_addr': bluetooth.read_local_bdaddr(),
        'rssi': rssi
    })
    asyncio.run(post(output))


scanner = BeaconScanner(
    callback,
    device_filter=IBeaconFilter(uuid="b2ddeadb-eef0-0000-0000-000000000000"))
scanner.start()
time.sleep(600)
scanner.stop()
Esempio n. 27
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            #writer.DictWriteheader#for dat in data:
            #for dat in data:
            writer.writerow([
                data['Minor'], data['RSSI'], data['Average_RSSI'],
                data['Distance'], data['time']
            ])
    except IOError:
        print("I/O error")


def getdistance(rssi, txpower):
    txpower = int(txpower)  #one meter away RSSI
    if rssi == 0:
        return -1
    else:
        ratio = rssi * 1.0 / txpower
        if ratio < 1:
            return ratio**10
        else:
            return 0.89976 * ratio**7.7095 + 0.111


scanner = BeaconScanner(callback,
                        device_filter=IBeaconFilter(
                            uuid="f7826da6-4fa2-4e98-8024-bc5b71e0893e",
                            major=7142))

scanner.start()
#time.sleep(5)
#scanner.stop()
Esempio n. 28
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import time
import webbrowser
import sys,threading
from beacontools import BeaconScanner, IBeaconFilter

rangeMax = -38

def callback(bt_addr, rssi, packet, additional_info):
    print(threading.current_thread().)
    if rssi > rangeMax:
	print("aqui, <%d>" %(rssi))
   #else:
	


# scan for all iBeacon advertisements from beacons with the specified uuid
scanner = BeaconScanner(callback,
    device_filter=IBeaconFilter(uuid="00000003-0000-0000-0000-000000000000"))

scanner.start()
# time.sleep(0.5)
# scanner.stop()
def get_ip():
    s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
    try:
        s.connect(('10.255.255.255', 1))
        ip = s.getsockname()[0]
    except:
        ip = 'unknown'
    finally:
        s.close()
    return ip


# scan for all iBeacon advertisements from beacons with the specified uuid
scanner = BeaconScanner(callback,
                        device_filter=IBeaconFilter(uuid=filter_uuid,
                                                    major=filter_major,
                                                    minor=filter_minor))

ip_address = get_ip()
print("ip: " + ip_address)

try:
    scanner.start()

    while True:
        ping_server()
        time.sleep(5)
except Exception as e:
    print(e)
    scanner.stop()
except KeyboardInterrupt:
from beacontools import BeaconScanner, IBeaconFilter
from datetime import datetime, timedelta
import csv
import platform


def callback(bt_addr, rssi, packet, additional_info):
    print("<%s, %d> %s %s" % (bt_addr, rssi, packet, additional_info))
    uuid = additional_info["uuid"]
    major = additional_info["major"]
    minor = additional_info["minor"]
    receiver = platform.uname()[1]
    timestamp = str(datetime.now())
    with open('BeaconRecord_' + receiver + '.csv', 'a') as f:
        writer = csv.writer(f)
        writer.writerow([uuid, major, minor, rssi, receiver, timestamp])


time.sleep(5)

# scan for all iBeacon advertisements from beacons with the specified uuid
scanner = BeaconScanner(
    callback,
    device_filter=IBeaconFilter(uuid="00000000-b53c-1001-b000-001c4d5c1dd0"))
scanner.start()

while True:
    i = 0

scanner.stop()