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Zigbee devices Thermostats and radiator valves

Tuya L2-T-F-MF

Smart Zigbee fan coil thermostat. Works with Zigbee2MQTT with no vendor hub or cloud: it pairs with a Zigbee stick and shows up in Home Assistant.

Vendor
Tuya
Model
L2-T-F-MF
Type
Thermostats and radiator valves
Power
mains: usually a router that extends the mesh
Firmware updates (OTA)
no

Find it in shops: AliExpress

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What it exposes

FeaturePropertyValuesControl
Climatelocal_temperature, system_mode, fan_mode, current_heating_setpointroom temperature, mode, fan_mode, heating setpointsettable
Local temperature calibrationlocal_temperature_calibration°C · -9…9settable
Screen brightnessscreen_brightness1…9settable
Deadzone temperaturedeadzone_temperature°C · 0.5…5settable
Min temperature limitmin_temperature_limit°C · 5…15settable
Max temperature limitmax_temperature_limit°C · 16…45settable
Child lockchild_locklocked, unlockedsettable
Eco temperature heatingeco_temperature_heating°C · 20…30settable
Eco temperature coolingeco_temperature_cooling°C · 20…30settable

MQTT: state and commands

Zigbee2MQTT publishes the device state to zigbee2mqtt/my_device (my_device is the name you give the device). An example message:

{
  "local_temperature": 20.5,
  "current_heating_setpoint": 21,
  "system_mode": "heat",
  "local_temperature_calibration": 0,
  "screen_brightness": 5,
  "deadzone_temperature": 3,
  "min_temperature_limit": 10,
  "max_temperature_limit": 31,
  "child_lock": "locked",
  "eco_temperature_heating": 25,
  "eco_temperature_cooling": 25,
  "linkquality": 120
}

Send commands to zigbee2mqtt/my_device/set:

mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"current_heating_setpoint":21.5}'
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"system_mode":"heat"}'
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"child_lock":"unlocked"}'

Watch the topics live from the browser: MQTT client.

Home Assistant automation example

Zigbee2MQTT creates Home Assistant entities from the device name. If it is called my_device, an automation in automations.yaml can look like this:

- alias: "Cooler at night"
  mode: single
  triggers:
    - trigger: time
      at: "23:00:00"
  actions:
    - action: climate.set_temperature
      target:
        entity_id: climate.my_device
      data:
        temperature: 18

Check the YAML: YAML checker.

How to pair it

  1. In Zigbee2MQTT click Permit join.
  2. Put the device in pairing mode: usually a long press of the reset button (5–10 s) until the LED blinks; bulbs: switch the power off and on 5–6 times.
  3. Keep the device close to the coordinator or a router while pairing.
  4. Give it a clear name: MQTT topics and Home Assistant entities are built from it.

Exact procedure and model notes: the device page in the Zigbee2MQTT docs. No coordinator yet: coordinator picker.

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