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Zigbee devices Switches and relays

ShinaSystem WCM-300Z

SiHAS 4-gang wall outlet. Works with Zigbee2MQTT with no vendor hub or cloud: it pairs with a Zigbee stick and shows up in Home Assistant.

Vendor
ShinaSystem
Model
WCM-300Z
Type
Switches and relays
Power
mains: usually a router that extends the mesh
Firmware updates (OTA)
yes, through Zigbee2MQTT

Find it in shops: AliExpress

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What it exposes

FeaturePropertyValuesControl
Switch (p1)state_p1—settable
Switch (p2)state_p2—settable
Switch (p3)state_p3—settable
Switch (p4)state_p4—settable
Power (p1)power_p1Wread only
Power (p2)power_p2Wread only
Power (p3)power_p3Wread only
Power (p4)power_p4Wread only
Energy (p1)energy_p1kWhread only
Energy (p2)energy_p2kWhread only
Energy (p3)energy_p3kWhread only
Energy (p4)energy_p4kWhread only
Button lock mode (p1)button_lock_mode_p1—settable
Button lock mode (p2)button_lock_mode_p2—settable
Button lock mode (p3)button_lock_mode_p3—settable
Button lock mode (p4)button_lock_mode_p4—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_p1": "ON",
  "state_p2": "ON",
  "state_p3": "ON",
  "state_p4": "ON",
  "power_p1": 0,
  "power_p2": 0,
  "power_p3": 0,
  "power_p4": 0,
  "energy_p1": 0,
  "energy_p2": 0,
  "energy_p3": 0,
  "energy_p4": 0,
  "button_lock_mode_p1": false,
  "button_lock_mode_p2": false,
  "linkquality": 120
}

Send commands to zigbee2mqtt/my_device/set:

mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"state_p1":"TOGGLE"}'
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"state_p2":"TOGGLE"}'
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"state_p3":"TOGGLE"}'
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"state_p4":"TOGGLE"}'
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"button_lock_mode_p1":true}'

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: "Off at night"
  mode: single
  triggers:
    - trigger: time
      at: "23:30:00"
  actions:
    - action: switch.turn_off
      target:
        entity_id: switch.my_device_p1

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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