Yoswit Smart Curtain Switch

Model: YO821k (R2W)

Product name: Yoswit Smart Curtain Switch

Panel type: 120 type

Category: Smart Home / Curtain & Motor Control

Revision: V7.0

Technology: Wi-Fi 2.4G + Bluetooth 4.2 (BLE)

Certifications: ETL, CE, FCC, RoHS

Manufacturer: Designed by Yoswit in Hong Kong, assembled in Guangdong, China

Tagline

Add comfort and convenience to your living space with a smart curtain switch — works with traditional AC motors, no rewiring required.

Key Features

• Compatible with traditional AC motors
  Yoswit smart curtain switch supports conventional AC motors. No rewiring or renovation is needed — your smart home can be ready in just a few minutes.
• Compatible with traditional wiring
  Wiring is the same as a traditional curtain switch. Yoswit connects to the motor via L1, L2 and N lines. No extra signal wires or cabling are required.
• Customizable run time
  Set the motor run time in the Yoswit App to fine-tune how far the curtains open or close.
• Dual control modes
  Short press fully opens or closes the motor. Long press and release controls when the motor stops.
• Switch lock
  Lock the switch in a fixed state to prevent accidental operation at home, in offices or public areas. Activate or release the lock anytime from the Yoswit App.
• Stop and lock button
  Press the middle button to stop the motor, or lock the entire switch.

Platform / Ecosystem

Network control · Voice control · Device grouping/mesh · Remote control · Scene modes · Presence sensing · Timer/schedule · Password protection · IFTTT

Bluetooth & App

• Bluetooth: 4.2 / BLE
• Also supports Wi-Fi 2.4G for remote/network control
• Compatible devices: All Bluetooth Smart Ready devices — phones, tablets, smart set-top boxes
• iOS: 13.0 or later
• Android: 7.0 or later

Specifications

Installation

⚠️ Disconnect power at the service panel before installation. Only licensed electricians should install the switch.

1. Turn off power at the breaker.
2. Remove the old switch and expose approx. 5mm of bare wire.
3. Insert a small flat-head screwdriver into the frame notch and gently pry off the faceplate.
4. Connect wires to the switch terminals according to the wiring diagram (L1, L2, N).
5. Ground the device as required by local regulations.
6. Secure the switch firmly into the wall box.
7. Restore power at the breaker/RCD.
8. Test by pressing the smart curtain/projector-screen switch several times; the curtain/projector screen should open and close accordingly.
9. Snap the faceplate onto the switch; a “click” at the corners means correct placement.