dbus_next.errors.InterfaceNotFoundError: interface not found on this object: org.freedesktop.DBus.Properties

[xb0s0n]

Hi,

This bit of code is exactly what I was looking for recording data from these little temp sensors - but i'm having noob issues getting it to run clean.

running on a pi 3 (b??)

pi@raspberrypi:~ $ bluetoothctl
Agent registered
[CHG] Controller B8:27:EB:A1:72:81 Pairable: yes
[bluetooth]# power on
Changing power on succeeded
[bluetooth]# scan o
off on
[bluetooth]# scan o
off on
[bluetooth]# scan o
off on
[bluetooth]# scan on
Discovery started
[CHG] Controller B8:27:EB:A1:72:81 Discovering: yes
[NEW] Device 66:94:2E:09:12:29 66-94-2E-09-12-29
[NEW] Device A3:E4:00:00:0A:E4 ThermoBeacon
[NEW] Device E6:E9:F0:0D:1C:53 HRM-Dual:633819
[NEW] Device 59:E3:6E:E2:94:8F 59-E3-6E-E2-94-8F
[NEW] Device DC:72:23:C1:29:2F DC-72-23-C1-29-2F
[NEW] Device 00:12:6F:4E:B2:95 Mu-so Qb BT 1DCC
[bluetooth]# connect A3:E4:00:00:0A:E4
Attempting to connect to A3:E4:00:00:0A:E4
[CHG] Device A3:E4:00:00:0A:E4 Connected: yes
Connection successful
[CHG] Device E6:E9:F0:0D:1C:53 RSSI: -87
[NEW] Primary Service (Handle 0xeec4)
/org/bluez/hci0/dev_A3_E4_00_00_0A_E4/service0008
00001801-0000-1000-8000-00805f9b34fb
Generic Attribute Profile
[NEW] Characteristic (Handle 0x006c)
/org/bluez/hci0/dev_A3_E4_00_00_0A_E4/service0008/char0009

root@raspberrypi:/home/pi# python sensor_blue_adv.py scan 5 hci0 A4:47:00:00:0A:60
Traceback (most recent call last):
File "/usr/local/lib/python3.9/dist-packages/dbus_next/proxy_object.py", line 217, in get_interface
intr_interface = next(i for i in self.introspection.interfaces if i.name == name)
StopIteration

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/home/pi/sensor_blue_adv.py", line 195, in
loop.run_until_complete(scan(int(sys.argv[2]), sys.argv[3], sys.argv[4]))
File "/usr/lib/python3.9/asyncio/base_events.py", line 642, in run_until_complete
return future.result()
File "/home/pi/sensor_blue_adv.py", line 60, in scan
sb = sb_obj.get_interface('org.freedesktop.DBus.Properties')
File "/usr/local/lib/python3.9/dist-packages/dbus_next/aio/proxy_object.py", line 159, in get_interface
return super().get_interface(name)
File "/usr/local/lib/python3.9/dist-packages/dbus_next/proxy_object.py", line 219, in get_interface
raise InterfaceNotFoundError(f'interface not found on this object: {name}')
dbus_next.errors.InterfaceNotFoundError: interface not found on this object: org.freedesktop.DBus.Properties
root@raspberrypi:/home/pi#

bluez-firmware/stable,now 1.2-4+rpt8 all [installed,automatic]
bluez-hcidump/stable,now 5.55-3.1+rpt1 armhf [installed]
bluez-obexd/stable,now 5.55-3.1+rpt1 armhf [installed,automatic]
bluez-tools/stable,now 2.0~20170911.0.7cb788c-4 armhf [installed]
bluez/stable,now 5.55-3.1+rpt1 armhf [installed]
libbluetooth3/stable,now 5.55-3.1+rpt1 armhf [installed,automatic]
pi-bluetooth/stable,now 0.1.19 all [installed]
python3-bluez/stable,now 0.23-3 armhf [installed]

pi@raspberrypi:~ $ pip3 list
Package Version

---

certifi 2020.6.20
chardet 4.0.0
colorzero 1.1
dbus-next 0.2.3
distro 1.5.0
gattlib 0.20201113
gpiozero 1.6.2
idna 2.10
pip 20.3.4
PyBluez 0.23
python-apt 2.2.1
requests 2.25.1
RPi.GPIO 0.7.0
setuptools 52.0.0
six 1.16.0
spidev 3.5
ssh-import-id 5.10
urllib3 1.26.5
wheel 0.34.2

Do i need specific versions to get this to run or am i missing certain packages?

Many thanks and thanks for coding this :)