Theengs Gateway does not find anymore Xiaomi Mijia sensors.

[francescop75]

Hi,

at some undetermined time, after some system updates, the daemon has stopped detecting 2 Xiaomi Mijia sensors, which were working fine before.

The gateway is installed on a Proxomox VM, Debian 11, standard python 3, with a passthrough on the USB port, and "hcitool lescan" seems to work:

root@servizi:~# hcitool lescan
LE Scan ...
A4:C1:38:AF:6A:91 (unknown)
A4:C1:38:AF:6A:91 ATC_ES_CED
A4:C1:38:4C:A5:A6 (unknown)
A4:C1:38:4C:A5:A6 ES_CED02

Environment

# Theengs Gateway Diagnostics

## Package Versions

| Name               | Value  |
|--------------------|--------|
| Theengs Gateway    | 1.0.0  |
| Theengs Decoder    | 1.4.0  |
| Bleak              | 0.20.2 |
| Bluetooth Clocks   | 0.1.2  |
| Bluetooth Numbers  | 1.1.0  |
| Paho MQTT          | 1.6.1  |
| Bluetooth Adapters | 0.15.3 |

## Python

| Name           | Value               |
|----------------|---------------------|
| Version        | 3.9.2               |
| Implementation | CPython             |
| Compiler       | GCC 10.2.1 20210110 |
| Executable     | /usr/bin/python3    |

## Operating System

| Name         | Value                                 |
|--------------|---------------------------------------|
| System       | Linux                                 |
| Release      | 5.10.0-21-amd64                       |
| Version      | #1 SMP Debian 5.10.162-1 (2023-01-21) |
| Machine type | x86_64                                |

## Configuration

{
    "adapter": "hci0",
    "ble_scan_time": 5,
    "ble_time_between_scans": 5,
    "discovery": 1,
    "discovery_device_name": "",
    "discovery_filter": [],
    "discovery_topic": "homeassistant/sensor",
    "hass_discovery": 1,
    "host": "172.16.0.31",
    "log_level": "DEBUG",
    "lwt_topic": "ced_roma",
    "pass": "***",
    "port": 1883,
    "presence": 0,
    "presence_topic": "ced_roma/presence",
    "publish_advdata": 0,
    "publish_all": 1,
    "publish_topic": "ced_roma",
    "scanning_mode": "passive",
    "subscribe_topic": "ced_roma/undecoded",
    "time_format": 0,
    "time_sync": [],
    "user": "***"
}

## Bluetooth adapters

Default adapter: hci0

### hci0

| Name         | Value               |
|--------------|---------------------|
| address      | 00:1A:7D:XX:XX:XX   |
| sw_version   | servizi             |
| hw_version   | usb:v1D6Bp0246d0537 |
| passive_scan | False               |
| manufacturer | cyber-blue(HK)Ltd   |
| product      | 0001                |
| vendor_id    | 0a12                |
| product_id   | 0001                |
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      

Additional context
Output of the command:

root@servizi:~# export BLEAK_LOGGING=1
root@servizi:~# python3 -m TheengsGateway -ll INFO
INFO:BLEGateway:Starting BLE scan
INFO:BLEGateway:Connected to MQTT Broker!
INFO:BLEGateway:Subscribed to ced_roma/undecoded
2023-04-20 16:43:07,248 bleak.backends.bluezdbus.manager Thread-1 DEBUG: initial properties: {'/org/bluez': {'org.freedesktop.DBus.Introspectable': {}, 'org.bluez.AgentManager1': {}, 'org.bluez.ProfileManager1': {}, 'org.bluez.HealthManager1': {}}, '/org/bluez/hci0': {'org.freedesktop.DBus.Introspectable': {}, 'org.bluez.Adapter1': {'Address': '00:1A:7D:DA:71:15', 'AddressType': 'public', 'Name': 'servizi', 'Alias': 'servizi', 'Class': 0, 'Powered': True, 'Discoverable': False, 'DiscoverableTimeout': 180, 'Pairable': False, 'PairableTimeout': 0, 'Discovering': False, 'UUIDs': ['00001801-0000-1000-8000-00805f9b34fb', '00001800-0000-1000-8000-00805f9b34fb', '00001200-0000-1000-8000-00805f9b34fb', '0000110c-0000-1000-8000-00805f9b34fb', '0000110e-0000-1000-8000-00805f9b34fb', '0000180a-0000-1000-8000-00805f9b34fb'], 'Modalias': 'usb:v1D6Bp0246d0537', 'Roles': ['central', 'peripheral']}, 'org.freedesktop.DBus.Properties': {}, 'org.bluez.GattManager1': {}, 'org.bluez.LEAdvertisingManager1': {'ActiveInstances': 0, 'SupportedInstances': 5, 'SupportedIncludes': ['tx-power', 'appearance', 'local-name']}, 'org.bluez.Media1': {}, 'org.bluez.NetworkServer1': {}}}
DEBUG:bleak.backends.bluezdbus.manager:initial properties: {'/org/bluez': {'org.freedesktop.DBus.Introspectable': {}, 'org.bluez.AgentManager1': {}, 'org.bluez.ProfileManager1': {}, 'org.bluez.HealthManager1': {}}, '/org/bluez/hci0': {'org.freedesktop.DBus.Introspectable': {}, 'org.bluez.Adapter1': {'Address': '00:1A:7D:DA:71:15', 'AddressType': 'public', 'Name': 'servizi', 'Alias': 'servizi', 'Class': 0, 'Powered': True, 'Discoverable': False, 'DiscoverableTimeout': 180, 'Pairable': False, 'PairableTimeout': 0, 'Discovering': False, 'UUIDs': ['00001801-0000-1000-8000-00805f9b34fb', '00001800-0000-1000-8000-00805f9b34fb', '00001200-0000-1000-8000-00805f9b34fb', '0000110c-0000-1000-8000-00805f9b34fb', '0000110e-0000-1000-8000-00805f9b34fb', '0000180a-0000-1000-8000-00805f9b34fb'], 'Modalias': 'usb:v1D6Bp0246d0537', 'Roles': ['central', 'peripheral']}, 'org.freedesktop.DBus.Properties': {}, 'org.bluez.GattManager1': {}, 'org.bluez.LEAdvertisingManager1': {'ActiveInstances': 0, 'SupportedInstances': 5, 'SupportedIncludes': ['tx-power', 'appearance', 'local-name']}, 'org.bluez.Media1': {}, 'org.bluez.NetworkServer1': {}}}

And there it get stuck.

How can I proceed?

[matlab22]

You are reading the sensors every 5s. Probably the battery died.
I had the same issue. I tried to set to passive mode. But my raspberry os does not allow this. For the moment I set the time to every 10min. But for the long term I will probably switch to another solution which reads the sensors passive.

[francescop75]

You are reading the sensors every 5s. Probably the battery died.

That's not it!

Not only I have an alarm set when batteries go under 10%, but the two sensors work fine with another little python demon (which I think uses passive mode, but maybe different libraries): https://github.com/JsBergbau/MiTemperature2

The exact same thing is happening at home, on a RPi 3, which has a debian 11 derivative distribution, so maybe there is something wrong with the debian shipped default libraries...