Schneider Electric MEG5126-0300/MEG5171-0000 with Zigbee2MQTT…

What it exposes

Feature	Property	Values	Control
Light	state, brightness, level_config	on / off, brightness, level settings	settable
Ballast minimum level	ballast_minimum_level	1…254	settable
Ballast maximum level	ballast_maximum_level	1…254	settable
Dimmer mode	dimmer_mode	auto, rc, rl, rl_led	settable
Indicator LED (right)	indicator_mode_right	reverse_with_load, consistent_with_load, always_off, always_on, flash_on_click	settable
Indicator LED (left)	indicator_mode_left	reverse_with_load, consistent_with_load, always_off, always_on, flash_on_click	settable
Switch actions (right)	switch_actions_right	light, light_opposite, dimmer, dimmer_opposite, standard_shutter, standard_shutter_opposite, schneider_shutter, schneider_shutter_opposite …	settable
Switch actions (left)	switch_actions_left	light, light_opposite, dimmer, dimmer_opposite, standard_shutter, standard_shutter_opposite, schneider_shutter, schneider_shutter_opposite …	settable

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:

{
  "state": "ON",
  "brightness": 180,
  "ballast_minimum_level": 128,
  "ballast_maximum_level": 128,
  "dimmer_mode": "auto",
  "indicator_mode_right": "reverse_with_load",
  "indicator_mode_left": "reverse_with_load",
  "switch_actions_right": "light",
  "switch_actions_left": "light",
  "linkquality": 120
}

Send commands to zigbee2mqtt/my_device/set:

mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"state":"ON","brightness":180}'
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"state":"OFF","transition":2}'
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"dimmer_mode":"rc"}'
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"indicator_mode_right":"consistent_with_load"}'
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"indicator_mode_left":"consistent_with_load"}'

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: "Light at sunset"
  mode: single
  triggers:
    - trigger: sun
      event: sunset
      offset: "-00:15:00"
  actions:
    - action: light.turn_on
      target:
        entity_id: light.my_device
      data:
        brightness_pct: 70

Check the YAML: YAML checker.

How to pair it

In Zigbee2MQTT click Permit join.
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.
Keep the device close to the coordinator or a router while pairing.
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.

Schneider Electric MEG5126-0300/MEG5171-0000

What it exposes

MQTT: state and commands

Home Assistant automation example

How to pair it

Similar devices

More tools: smart home