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  • Supported Adapters
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  • FAQ
Devices
  • Zigbee

    • Zigbee network
    • Improve network range and stability
    • Secure your Zigbee network
    • Sniff Zigbee traffic
    • Create a CC2530 router
  • Support new devices

    • Support new devices
    • Support new Tuya devices
    • Find Tuya Data Points
  • Remote Adapter

    • Connect to a remote adapter
    • Connect to a remote Sonoff ZBBridge
  • More

    • 3D cases
    • External converters
    • External extensions
    • Switch to the dev branch
    • Get Tuya and Xiaomi OTA url
  • Forum
  • Discord
  • Issues
  • Donate
GitHub
GitHub (docs)

Zemismart ZN-USC1U-HT

ModelZN-USC1U-HT
VendorZemismart
DescriptionSmart curtain wall switch
Exposescover (state, position), motor_steering, calibration_time
PictureZemismart ZN-USC1U-HT

Notes

Pairing

Press on one of the buttons for 10 seconds to enter pairing mode (All lights should blink)

Calibration

  • Press the close button on the switch, wait until the curtains are completely closed.
  • Press the pause button on the switch.
  • Set the amount of time for the curtain to be opened, see below.
  • If the amount of time is not enough, repeat the process until the curtain can be completely opened.

Options

How to use device type specific configuration

  • invert_cover: Inverts the cover position, false: open=100,close=0, true: open=0,close=100 (default false). The value must be true or false

Exposes

Cover

The current state of this cover is in the published state under the state property (value is OPEN or CLOSE). To control this cover publish a message to topic zigbee2mqtt/FRIENDLY_NAME/set with payload {"state": "OPEN"}, {"state": "CLOSE"}, {"state": "STOP"}. It's not possible to read (/get) this value. To change the position publish a message to topic zigbee2mqtt/FRIENDLY_NAME/set with payload {"position": VALUE} where VALUE is a number between 0 and 100.

Motor steering (enum)

Motor steering. Value can be found in the published state on the motor_steering property. It's not possible to read (/get) this value. To write (/set) a value publish a message to topic zigbee2mqtt/FRIENDLY_NAME/set with payload {"motor_steering": NEW_VALUE}. The possible values are: FORWARD, BACKWARD.

Calibration time (numeric)

Calibration time in seconds (Please fully close the curtain before set the calibration time). Value can be found in the published state on the calibration_time property. It's not possible to read (/get) this value. To write (/set) a value publish a message to topic zigbee2mqtt/FRIENDLY_NAME/set with payload {"calibration_time": NEW_VALUE}. The minimal value is 0 and the maximum value is 500. The unit of this value is s.

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Last Updated: 11/22/25, 8:34 PM