Bluetooth tracker shows mac addresses

Configuration
1

Hi all,
I have problems with my bluetooth tracker on my HA running on a Pi3.
It is showing a lot of mac addresses instead of of the device name and the presence detection is kind of weird. Hope you can help on this.
My configuration:

device_tracker:
  - platform: bluetooth_le_tracker
    interval_seconds: 600
    track_new_devices: yes
    consider_home: 180

my known_devices file contains a large amount of entires like:

ble_4b_2d_49_6f_f4_86:
  hide_if_away: false
  icon:
  mac: BLE_4B:2D:49:6F:F4:86
  name: ble 4b 2d 49 6f f4 86
  picture:
  track: true

so I don´t know what device HA is refering to. And the list is steadily growing.
When I do a check against a database I get a list of events similar to:

'state_changed','{\"entity_id\": \"device_tracker.ble_4b_2d_49_6f_f4_86\", \"old_state\": null, \"new_state\": {\"entity_id\": \"device_tracker.ble_4b_2d_49_6f_f4_86\", \"state\": \"home\", \"attributes\": {\"source_type\": \"bluetooth_le\", \"friendly_name\": \"ble 4b 2d 49 6f f4 86\"}, \"last_changed\": \"2019-09-21T22:32:45.207691+00:00\", \"last_updated\": \"2019-09-21T22:32:45.207691+00:00\", \"context\": {\"id\": \"89c6d3fee3ab45e5a4565dea83179534\", \"parent_id\": null, \"user_id\": null}}}'
'state_changed','{\"entity_id\": \"device_tracker.ble_4b_2d_49_6f_f4_86\", \"old_state\": {\"entity_id\": \"device_tracker.ble_4b_2d_49_6f_f4_86\", \"state\": \"home\", \"attributes\": {\"source_type\": \"bluetooth_le\", \"friendly_name\": \"ble 4b 2d 49 6f f4 86\"}, \"last_changed\": \"2019-09-21T22:32:45.207691+00:00\", \"last_updated\": \"2019-09-21T22:32:45.207691+00:00\", \"context\": {\"id\": \"89c6d3fee3ab45e5a4565dea83179534\", \"parent_id\": null, \"user_id\": null}}, \"new_state\": {\"entity_id\": \"device_tracker.ble_4b_2d_49_6f_f4_86\", \"state\": \"not_home\", \"attributes\": {\"source_type\": \"bluetooth_le\", \"friendly_name\": \"ble 4b 2d 49 6f f4 86\"}, \"last_changed\": \"2019-09-21T22:35:50.019833+00:00\", \"last_updated\": \"2019-09-21T22:35:50.019833+00:00\", \"context\": {\"id\": \"993c1962aead45e08cd28213ff503edc\", \"parent_id\": null, \"user_id\": null}}}'
'state_changed','{\"entity_id\": \"device_tracker.ble_4b_2d_49_6f_f4_86\", \"old_state\": {\"entity_id\": \"device_tracker.ble_4b_2d_49_6f_f4_86\", \"state\": \"not_home\", \"attributes\": {\"source_type\": \"bluetooth_le\", \"friendly_name\": \"ble 4b 2d 49 6f f4 86\"}, \"last_changed\": \"2019-09-21T22:35:50.019833+00:00\", \"last_updated\": \"2019-09-21T22:35:50.019833+00:00\", \"context\": {\"id\": \"993c1962aead45e08cd28213ff503edc\", \"parent_id\": null, \"user_id\": null}}, \"new_state\": {\"entity_id\": \"device_tracker.ble_4b_2d_49_6f_f4_86\", \"state\": \"home\", \"attributes\": {\"source_type\": \"bluetooth_le\", \"friendly_name\": \"ble 4b 2d 49 6f f4 86\"}, \"last_changed\": \"2019-09-21T22:42:56.483175+00:00\", \"last_updated\": \"2019-09-21T22:42:56.483175+00:00\", \"context\": {\"id\": \"715f4398706c40ca869d30fbefa5b451\", \"parent_id\": null, \"user_id\": null}}}'
'state_changed','{\"entity_id\": \"device_tracker.ble_4b_2d_49_6f_f4_86\", \"old_state\": {\"entity_id\": \"device_tracker.ble_4b_2d_49_6f_f4_86\", \"state\": \"home\", \"attributes\": {\"source_type\": \"bluetooth_le\", \"friendly_name\": \"ble 4b 2d 49 6f f4 86\"}, \"last_changed\": \"2019-09-21T22:42:56.483175+00:00\", \"last_updated\": \"2019-09-21T22:42:56.483175+00:00\", \"context\": {\"id\": \"715f4398706c40ca869d30fbefa5b451\", \"parent_id\": null, \"user_id\": null}}, \"new_state\": {\"entity_id\": \"device_tracker.ble_4b_2d_49_6f_f4_86\", \"state\": \"not_home\", \"attributes\": {\"source_type\": \"bluetooth_le\", \"friendly_name\": \"ble 4b 2d 49 6f f4 86\"}, \"last_changed\": \"2019-09-21T22:46:00.023388+00:00\", \"last_updated\": \"2019-09-21T22:46:00.023388+00:00\", \"context\": {\"id\": \"261ec49210774ba18ba0628ee75e42cc\", \"parent_id\": null, \"user_id\": null}}}'
'state_changed','{\"entity_id\": \"device_tracker.ble_4b_2d_49_6f_f4_86\", \"old_state\": {\"entity_id\": \"device_tracker.ble_4b_2d_49_6f_f4_86\", \"state\": \"not_home\", \"attributes\": {\"source_type\": \"bluetooth_le\", \"friendly_name\": \"ble 4b 2d 49 6f f4 86\"}, \"last_changed\": \"2019-09-21T22:46:00.023388+00:00\", \"last_updated\": \"2019-09-21T22:46:00.023388+00:00\", \"context\": {\"id\": \"261ec49210774ba18ba0628ee75e42cc\", \"parent_id\": null, \"user_id\": null}}, \"new_state\": {\"entity_id\": \"device_tracker.ble_4b_2d_49_6f_f4_86\", \"state\": \"home\", \"attributes\": {\"source_type\": \"bluetooth_le\", \"friendly_name\": \"ble 4b 2d 49 6f f4 86\"}, \"last_changed\": \"2019-09-21T22:53:07.272430+00:00\", \"last_updated\": \"2019-09-21T22:53:07.272430+00:00\", \"context\": {\"id\": \"e849304d9d2c4d87832d05721c51b929\", \"parent_id\": null, \"user_id\": null}}}'
'device_tracker_new_device','{\"entity_id\": \"device_tracker.ble_4b_2d_49_6f_f4_86\", \"host_name\": null, \"mac\": \"BLE_4B:2D:49:6F:F4:86\"}'

Anyone out there who can give me a hint in the right direction?
Thanks in advance for your help

2

SSH into the pi and try running sudo /usr/bin/hcitool -i hci0 lescan – it will show you names where available. The hci0 may need to be hci1 or similar depending on your setup.

3

I can only do a (lescan parameter is not supported)

sudo /usr/bin/hcitool -i hci0 scan

Scanning ...

B0:52:16:BD:37:DE KD-43XF8096

the

And

hciconfig
hci0:	Type: Primary  Bus: UART
	BD Address: B8:27:EB:FD:FC:27  ACL MTU: 1021:8  SCO MTU: 64:1
	UP RUNNING 
	RX bytes:848646 acl:0 sco:0 events:35385 errors:0
	TX bytes:59319 acl:0 sco:0 commands:7472 errors:0