RE: how to sniffer in RX,in tx,i can get the name of TX,i can't get the derss of RX,what is it problem?

Amanda Hsieh — Thu, 21 Apr 2022 11:49:33 GMT

Hi,

Here is an example in this case.

-Amanda

RE: how to sniffer in RX,in tx,i can get the name of TX,i can't get the derss of RX,what is it problem?

swz_nordic — Thu, 21 Apr 2022 11:12:11 GMT

ok,thanks.i have a question about the kconfig.

The length of the antenna switching pattern is limited by the :kconfig:option:`CONFIG_BT_CTLR_DF_MAX_ANT_SW_PATTERN_LEN` option. If the required length of the antenna switching pattern is greater than the default value of :kconfig:option:`CONFIG_BT_CTLR_DF_MAX_ANT_SW_PATTERN_LEN`, set the :kconfig:option:`CONFIG_BT_CTLR_DF_MAX_ANT_SW_PATTERN_LEN` option to the required value in the board configuration file. For example, for the :ref:`nRF52833 DK <ug_nrf52>` add :kconfig:option:`CONFIG_BT_CTLR_DF_MAX_ANT_SW_PATTERN_LEN` =N, where N is the required antenna switching pattern length, to the :file:`nrf52833dk_nrf52833.conf` file

how to make the correct configuration of antenna partterns?

Look forward to your reply.

RE: how to sniffer in RX,in tx,i can get the name of TX,i can't get the derss of RX,what is it problem?

Amanda Hsieh — Thu, 21 Apr 2022 06:44:03 GMT

Hi,

All the information regarding the RX sample is here https://github.com/nrfconnect/sdk-nrf/tree/main/samples/bluetooth/direction_finding_connectionless_rx

-Amanda

RE: how to sniffer in RX,in tx,i can get the name of TX,i can't get the derss of RX,what is it problem?

swz_nordic — Thu, 21 Apr 2022 02:27:20 GMT

ok,i know your meaning.yes,i see that the connectionless of DF is connectionless.is there no connection with Rx to Tx?i also notice that the bluetooth dereess of the device is random.or it mean that we can't sniffer the device.

can you tell me the more information about this?

RE: how to sniffer in RX,in tx,i can get the name of TX,i can't get the derss of RX,what is it problem?

Amanda Hsieh — Wed, 20 Apr 2022 12:13:03 GMT

Hi,

As I explained in the previous reply, the RX sample doesn't implement the advertisement as the TX sample, so the Sniffer cannot see the RX device.

-Amanda

RE: how to sniffer in RX,in tx,i can get the name of TX,i can't get the derss of RX,what is it problem?

swz_nordic — Tue, 19 Apr 2022 08:22:06 GMT

Thanks,i now get the log from RTT.i can see the Tx in log.The picture is below.

00> [DEVICE]: 3A:22:E2:FF:55:2F (public), AD evt type 0, Tx Pwr: 127, RSSI -86  C:1 S:1 D:0 SR:0 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255
00> [DEVICE]: 5F:60:20:61:46:D5 (random), AD evt type 4, Tx Pwr: 127, RSSI -68  C:1 S:1 D:0 SR:1 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255
00> [DEVICE]: 04:38:E7:F8:ED:D4 (random), AD evt type 3, Tx Pwr: 127, RSSI -52  C:0 S:0 D:0 SR:0 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255
00> [DEVICE]: 7F:2A:7E:EE:93:7A (random), AD evt type 3, Tx Pwr: 127, RSSI -53  C:0 S:0 D:0 SR:0 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255
00> [DEVICE]: FA:0D:AC:D8:7B:0D (public), AD evt type 0, Tx Pwr: 127, RSSI -90  C:1 S:1 D:0 SR:0 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255
00> [DEVICE]: D6:2F:4E:A0:D2:8E (random), AD evt type 3, Tx Pwr: 127, RSSI -56  C:0 S:0 D:0 SR:0 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255
00> [DEVICE]: 00:14:BE:60:20:C1 (public), AD evt type 0, Tx Pwr: 127, RSSI -67 JZS115 C:1 S:1 D:0 SR:0 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255
00> [DEVICE]: 06:60:ED:04:1C:6A (random), AD evt type 3, Tx Pwr: 127, RSSI -89  C:0 S:0 D:0 SR:0 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255
00> [DEVICE]: 09:F3:94:9D:B6:04 (random), AD evt type 5, Tx Pwr: 127, RSSI -51 DF Connectionless Beacon App C:0 S:0 D:0 SR:0 E:1 Prim: LE 1M, Secn: LE 2M, Interval: 0x0780 (2400 ms), SID: 0
00> [DEVICE]: 17:6E:A2:57:A5:B3 (random), AD evt type 3, Tx Pwr: 127, RSSI -56  C:0 S:0 D:0 SR:0 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255
00> [DEVICE]: 14:15:D3:3D:3E:52 (random), AD evt type 3, Tx Pwr: 127, RSSI -85  C:0 S:0 D:0 SR:0 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255
00> [DEVICE]: 3A:FC:CF:B1:5C:16 (random), AD evt type 3, Tx Pwr: 127, RSSI -64  C:0 S:0 D:0 SR:0 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255
00> [DEVICE]: 5C:84:40:FB:7D:22 (random), AD evt type 0, Tx Pwr: 127, RSSI -84  C:1 S:1 D:0 SR:0 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255
00> [DEVICE]: 5C:84:40:FB:7D:22 (random), AD evt type 4, Tx Pwr: 127, RSSI -83  C:1 S:1 D:0 SR:1 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255
00> [DEVICE]: 43:E0:CC:D6:E7:A5 (random), AD evt type 3, Tx Pwr: 127, RSSI -73  C:0 S:0 D:0 SR:0 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255
00> [DEVICE]: D2:9A:E3:F4:F3:0D (random), AD evt type 0, Tx Pwr: 127, RSSI -90  C:1 S:1 D:0 SR:0 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255
00> [DEVICE]: 70:61:EE:22:88:0C (public), AD evt type 0, Tx Pwr: 127, RSSI -69  C:1 S:1 D:0 SR:0 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255
00> [DEVICE]: 70:61:EE:22:88:0C (public), AD evt type 4, Tx Pwr: 127, RSSI -68 M-Pencil C:1 S:1 D:0 SR:1 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255
00> [DEVICE]: 7F:34:A4:DA:0D:AB (random), AD evt type 0, Tx Pwr: 127, RSSI -57  C:1 S:1 D:0 SR:0 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255
00> [DEVICE]: 7F:34:A4:DA:0D:AB (random), AD evt type 4, Tx Pwr: 127, RSSI -57  C:1 S:1 D:0 SR:1 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255
00> [DEVICE]: 2D:7A:B8:CE:6A:35 (random), AD evt type 3, Tx Pwr: 127, RSSI -60  C:0 S:0 D:0 SR:0 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255
00> [DEVICE]: 31:81:FC:A1:5A:66 (random), AD evt type 3, Tx Pwr: 127, RSSI -75  C:0 S:0 D:0 SR:0 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255
00> [DEVICE]: 04:38:E7:F8:ED:D4 (random), AD evt type 3, Tx Pwr: 127, RSSI -63  C:0 S:0 D:0 SR:0 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255
00> [DEVICE]: 5F:60:20:61:46:D5 (random), AD evt type 0, Tx Pwr: 127, RSSI -69  C:1 S:1 D:0 SR:0 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255
00> [DEVICE]: 5F:60:20:61:46:D5 (random), AD evt type 4, Tx Pwr: 127, RSSI -69  C:1 S:1 D:0 SR:1 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255
00> [DEVICE]: 04:CA:6B:BE:47:BB (random), AD evt type 3, Tx Pwr: 127, RSSI -54  C:0 S:0 D:0 SR:0 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255
00> [DEVICE]: 3A:22:E2:FF:55:2F (public), AD evt type 0, Tx Pwr: 127, RSSI -80  C:1 S:1 D:0 SR:0 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255
00> [DEVICE]: 7F:2A:7E:EE:93:7A (random), AD evt type 3, Tx Pwr: 127, RSSI -51  C:0 S:0 D:0 SR:0 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255
00> [DEVICE]: 00:14:BE:60:20:C1 (public), AD evt type 0, Tx Pwr: 127, RSSI -67 JZS115 C:1 S:1 D:0 SR:0 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255
00> [DEVICE]: 00:14:BE:60:20:C1 (public), AD evt type 4, Tx Pwr: 127, RSSI -67  C:1 S:1 D:0 SR:1 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255
00> [DEVICE]: FC:E8:06:24:66:29 (public), AD evt type 0, Tx Pwr: 127, RSSI -58  C:1 S:1 D:0 SR:0 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255
00> [DEVICE]: FC:E8:06:24:66:29 (public), AD evt type 4, Tx Pwr: 127, RSSI -57 EDIFIER Lolli Pods Plus C:1 S:1 D:0 SR:1 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255
00> [DEVICE]: 09:F3:94:9D:B6:04 (random), AD evt type 5, Tx Pwr: 127, RSSI -55 DF Connectionless Beacon App C:0 S:0 D:0 SR:0 E:1 Prim: LE 1M, Secn: LE 2M, Interval: 0x0780 (2400 ms), SID: 0
00> [DEVICE]: 17:6E:A2:57:A5:B3 (random), AD evt type 3, Tx Pwr: 127, RSSI -52  C:0 S:0 D:0 SR:0 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255
00> PER_ADV_SYNC[0]: [DEVICE]: 09:F3:94:9D:B6:04 (random) synced, Interval 0x0780 (2400 ms), PHY LE 2M
00> PER_ADV_SYNC[0]: [DEVICE]: 09:F3:94:9D:B6:04 (random), tx_power 127, RSSI -52, CTE AOA, data length 0, data: 
00> success. Periodic sync established.
00> Enable receiving of CTE...
00> success. CTE receive enabled.
00> Scan disable...Success.
00> Waiting for periodic sync lost...
00> PER_ADV_SYNC[0]: [DEVICE]: 09:F3:94:9D:B6:04 (random), tx_power 127, RSSI -51, CTE AOA, data length 0, data: 
00> CTE[0]: samples count 82, cte type AOA, slot durations: 1 [us], packet status CRC OK, RSSI -510
00> IQ sample content :

i want to get the Rx adress.The name is RX.but there is no name of RX.I i use nrf connect app for this sniffer.

#
# Copyright (c) 2021 Nordic Semiconductor ASA
#
# SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
#

CONFIG_BT=y
#CONFIG_BT_DEVICE_NAME="DF Connectionless Locator App"
CONFIG_BT_DEVICE_NAME="Rx"

CONFIG_BT_EXT_ADV=y
CONFIG_BT_PER_ADV_SYNC=y
CONFIG_BT_OBSERVER=y

# Enable Direction Finding Feature including AoA and AoD
CONFIG_BT_DF=y
CONFIG_BT_DF_CONNECTIONLESS_CTE_RX=y

#RTT log
CONFIG_USE_SEGGER_RTT=y
CONFIG_RTT_CONSOLE=y
CONFIG_UART_CONSOLE=n

RE: how to sniffer in RX,in tx,i can get the name of TX,i can't get the derss of RX,what is it problem?

Amanda Hsieh — Tue, 19 Apr 2022 07:52:29 GMT

Hi,

If you check the code and the terminal log of the RX, you could see the sample only scan without advertising. The sniffer only could see the advertising devices.

Regards,
Amanda