
Previous Amazon link was broken. I replaced it by a banggood link. Could also be replaced by a gearbest (https://www.gearbest.com/automation-modules/pp_3009630609765309.html) or unavailable Amazon product (https://us.amazon.com/Xiaomi-Bluetooth-Temperature-Sensitive-Thermometer/dp/B07B9SJJZJ).
4.5 KiB
title, description, ha_category, ha_release, ha_iot_class, ha_domain
title | description | ha_category | ha_release | ha_iot_class | ha_domain | |
---|---|---|---|---|---|---|
Xiaomi Mijia BLE Temperature and Humidity Sensor | Instructions on how to integrate MiTemp BLE temperature and humidity sensor with Home Assistant. |
|
0.69 | Local Polling | mitemp_bt |
The mitemp_bt
sensor platform allows one to monitor room temperature and humidity. The Xiaomi Mijia BLE Temperature and Humidity sensor with LCD is a small Bluetooth Low Energy device that monitors the room temperature and humidity. As only a single BLE device can be polled at the same time, the library employs locking to make sure this is the case.
Installation
Depending on the operating system you're running, you have to configure the proper Bluetooth backend on your system:
- On Home Assistant:
mitemp_bt
will work out of the box as long as the host supports Bluetooth (like the Raspberry Pi does). - On a Home Assistant Container: Works out of the box with
--net=host
and properly configured Bluetooth on the host. - On other Linux systems:
- Preferred solution: Install the
bluepy
andbtlewrap
library (via pip). When using a virtual environment, make sure to use install the library in the right one. - Fallback solution: Install
btlewrap
library (via pip) andgatttool
via your package manager. Depending on the distribution, the package name might be:bluez
,bluetooth
orbluez-deprecated
.
- Preferred solution: Install the
Configuration
Start a scan to determine the MAC addresses of the sensor:
$ sudo hcitool lescan
LE Scan ...
4C:65:A8:D2:31:7F MJ_HT_V1
[...]
Or if your distribution is using bluetoothctl:
$ bluetoothctl
[bluetooth]# scan on
Discovery started
[CHG] Controller XX:XX:XX:XX:XX:XX Discovering: yes
[NEW] Device 4C:65:A8:D2:31:7F MJ_HT_V1
Check for MJ_HT_V1
or similar entries, those are your sensor.
To use your Mi Temperature and Humidity sensor in your installation, add the following to your configuration.yaml
file:
# Example configuration.yaml entry
sensor:
- platform: mitemp_bt
mac: 'xx:xx:xx:xx:xx:xx'
monitored_conditions:
- temperature
{% configuration %}
mac:
description: The MAC address of your sensor.
required: true
type: string
monitored_conditions:
description: The parameters that should be monitored.
required: false
default: [temperature, humidity, battery]
type: list
keys:
temperature:
description: Temperature in C at the sensor's location.
humidity:
description: Humidity level in % at the sensor's location.
battery:
description: Battery details (in %).
name:
description: The name displayed in the frontend.
required: false
type: string
force_update:
description: Sends update events even if the value hasn't changed.
required: false
default: false
type: boolean
median:
description: "Sometimes the sensor measurements show spikes. Using this parameter, the poller will report the median of the last 3 (you can also use larger values) measurements. This filters out single spikes. Median: 5 will also filter double spikes. If you never have problems with spikes, median: 1
will work fine."
required: false
default: 3
type: integer
timeout:
description: Define the timeout value in seconds when polling.
required: false
default: 10
type: integer
retries:
description: Define the number of retries when polling.
required: false
default: 2
type: integer
cache_value:
description: Define cache expiration value in seconds.
required: false
default: 300
type: integer
adapter:
description: "Define the Bluetooth adapter to use. Run hciconfig
to get a list of available adapters."
required: false
default: hci0
type: string
{% endconfiguration %}
Note that by default the sensor is only polled once every 5 minutes. This means with the median: 3
setting will take as least 15 minutes before the sensor will report a value after a Home Assistant restart. Even though the hardware is able to provide new values every second, room temperatures don't change that quickly.
Reducing polling intervals will have a negative effect on the battery life.
Full example
A full configuration example could look like the one below:
# Example configuration.yaml entry
sensor:
- platform: mitemp_bt
mac: 'xx:xx:xx:xx:xx:xx'
name: Kids Room Temp
force_update: true
median: 1
monitored_conditions:
- temperature
- humidity
- battery