Xiaomi Mi Scale Add On for Home Assistant

Add-On for HomeAssistant to read weight measurements from Xiaomi Body Scales.

Supported Scales:

Name	Model	Picture
Mi Smart Scale 2	XMTZC04HM
Mi Body Composition Scale	XMTZC02HM
Mi Body Composition Scale 2	XMTZC05HM

Setup

1. Retrieve the scale's MAC Address based on the Xiaomi Mi Fit app.

2. Clone this repository git clone https://github.com/lolouk44/xiaomi_mi_scale_ha_add_on

3. Create a new directory xiaomi_mi_scale in the folder addons in your Home Assistant installation and place all files in it via SSH / Samba

4. Open Home Assistant and navigate to add-on store and clock the reload button on the top right corner. Now you should see the Xiaomi Mi Scale as a local add-on

5. Install the add-on (takes a while as the container is built locally)

6. Edit the Configuration

Option	Type	Required	Description
HCI_DEV	string	No	Bluetooth hci device to use. Defaults to hci0
MISCALE_MAC	string	Yes	Mac address of your scale
MQTT_PREFIX	string	No	MQTT Topic Prefix. Defaults to miscale
MQTT_HOST	string	Yes	MQTT Server (defaults to 127.0.0.1)
MQTT_USERNAME	string	No	Username for MQTT server (comment out if not required)
MQTT_PASSWORD	string	No	Password for MQTT (comment out if not required)
MQTT_PORT	int	No	Defaults to 1883
TIME_INTERVAL	int	No	Time in sec between each query to the scale, to allow other applications to use the Bluetooth module. Defaults to 30
MQTT_DISCOVERY	bool	No	MQTT Discovery for Home Assistant Defaults to true
MQTT_DISCOVERY_PREFIX	string	No	MQTT Discovery Prefix for Home Assistant. Defaults to homeassistant

Auto-gender selection/config -- This is used to create the calculations such as BMI, Water/Bone Mass etc... Up to 3 users possible as long as weights do not overlap!

Option	Type	Required	Description
USER1_GT	int	Yes	If the weight is greater than this number, we'll assume that we're weighing User #1
USER1_SEX	string	Yes	male / female
USER1_NAME	string	Yes	Name of the user
USER1_HEIGHT	int	Yes	Height (in cm) of the user
USER1_DOB	string	Yes	DOB (in yyyy-mm-dd format)
USER2_LT	int	No	If the weight is less than this number, we'll assume that we're weighing User #2
USER2_SEX	string	No	male / female
USER2_NAME	string	No	Name of the user
USER2_HEIGHT	int	No	Height (in cm) of the user
USER2_DOB	string	No	DOB (in yyyy-mm-dd format)
USER3_SEX	string	No	male / female
USER3_NAME	string	No	Name of the user
USER3_HEIGHT	int	No	Height (in cm) of the user
USER3_DOB	string	No	DOB (in yyyy-mm-dd format)

7. Start the add-on

Home-Assistant Setup:

Under the sensor block, enter as many blocks as users configured in your environment variables:

  - platform: mqtt
    name: "Example Name Weight"
    state_topic: "miScale/USER_NAME/weight"
    value_template: "{{ value_json['Weight'] }}"
    unit_of_measurement: "kg"
    json_attributes_topic: "miScale/USER_NAME/weight"
    icon: mdi:scale-bathroom

  - platform: mqtt
    name: "Example Name BMI"
    state_topic: "miScale/USER_NAME/weight"
    value_template: "{{ value_json['BMI'] }}"
    icon: mdi:human-pregnant

Acknowledgements:

Thanks to @syssi (https://gist.github.com/syssi/4108a54877406dc231d95514e538bde9) and @prototux (https://github.com/wiecosystem/Bluetooth) for their initial code

Special thanks to @ned-kelly for his help turning a "simple" python script into a fully fledged docker container

Thanks to @bpaulin for his PRs and collaboration