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Wi-Fi Curtain Switch User Manual V2.0


Wi-Fi Curtain Switch
Wi-Fi Roller Shutter/Motor Door Switch

King-Q4 Series

The switch works for curtain/roller shutter/motor door,
this manual only introduce the curtain for example.
Touch PAUL/OPEN/CLOSE curtain
App Remote: Open/Close/Paul
Percentage Open/Close curtain
Scheduled/Timers/Family Share
Works with Amazon Echo, Echo Dot, Amazon Tap
Works with Google Home
Certification: CE, RoHS, FCC
Power Supply: 90V-250V AC
Max. Current: 10A/250V/Gang
Max. Power: 2200W
Wireless Standard: 802.11 b/g/n
Security Mechanism: WPA-PSK/WPA2-PSK
Material: ABS V0 + Toughened Glass Panel
Dimension: 86mm*86mm*32mm; EU/UK plug
120mm*72mm*32mm, US plug

1. Schematic diagram of equipment installation

2. Set the curtain races time

the factory default Open and close racse time for the switch is 5seconds, it must set the race time for perfectly working the switch.

Some of the curtain motor not have the resistance stop function, so when the curtain track open or close to the max. length, the curtain motor is keep on running if not Manual pause/stop. It is easy cause the damage on the motor and switch, also waste electricity energy.

In order to protect the curtain motor and save the energy, this switch designed with races time setting function. After set up the races time, the switch will auto stop when the curtain open/close to the maximum length.  

The races time setting also helpful for the accurate persentage operate by drag the progress bar and Amazon Alexa/Google home smart voice control.

  1. After installed and connect the switch with the motor. For the first time power up the switch, it will automatically turn close the curtain to the maximum length
  2. Press the touch interface mild pause button around 4seconds till the red background led come up and blinking, then press the open touch button, the curtain start to open, the switch start to calculate the time.
  3. When the curtain track open completely, please press Open or Close button stop the time calculating. the switch record the races time.
Example as above photo, the 2meter track races close and open is 8seconds, so each time the switch open/close maximum time is 8+2=10seconds.
Remark: the switch MCU will plug additional 2seconds base on the calculating time, so if the user want the switch auto stop immediately and Accurate percentage curtain status interface on the mobile app. The user can stop the calculating when the curtain near close completely.

3. Download “eWeLink” app

Search “eWeLink” in APP Store for iOS version or Google play for Android version.

Or scan the QR code on the package card

4. Pair the switch on the APP

4.1. Power up your Switch.

4.2. Press the close or open button for 7 seconds until the wi-fi led fast blinks/3times then off, to enter into WiFi learning state:

4.3. Go to eWeLink App, click “+”.

For Android, please select the 1st icon, click next.
For iOS, please select the pairing icon accordingly. Click next.

EWeLink will auto-search and connect to the device.

4.4 Input your home SSID & password:
4.5. If no password, keep it blank.

4.6. Now eWeLink only support 2.4G WiFi communication protocol, 5G-WiFi is not supported.
4.7. Name the device to complete.
4.8. Maybe the device is “Offline” on eWeLink, for the device needs 1 minute to connect to your router and server. When the green LED on, the device is “Online”, if eWeLink shows still “Offline”, please close eWeLink and re-open.

5. APP features
5.1. WiFi remote control and device state
Turn Open/close by tapping on device icon. Device state always simultaneously display on APP.

5.2. Share Control

The owner can share the devices to other eWeLink accounts. While sharing devices, both should stay online on eWeLink. Because if the account you want to share is not online, he/she will not receive the invitation message.

How to make it possible? Firstly click Share, input the eWeLink account (phone number or email address) you want to share, tick the timer permissions (edit/delete/change/enable) you want to give, then click Next. The other account will receive an invitation message. Click Accept, the device has shared successfully. The other user will have access to control the device.

5.3. Timing schedules:
Support max 8 enabled single/repeat/countdown timing schedules each device. Preset timers can work even network is unavailable, but the device must keep power on.

5.4. Scene/Smart Scene

Scene allows triggering on/off your devices automatically. Scene Settings is in the upper right corner of Device List. You can set up scenes or smart scenes to trigger on/off the device.
Users should select “Click to execute” in the condition, add different existing devices, name the scene and save it.

5.5 Works with Amazon echo/alexa, google home, google nest,

smart speaker connect instruction on the app

6. Set default device status
In Device Setting, you can set default device status to ON or OFF when the device is powered on.

7. Security mechanism
One device one owner. Other people can not add the devices that have already been added. If you want to add your device to another account, don’t forget to delete it first.

8. Update
It will auto-remind you of new firmware or version. Please update as soon as you can.

9. Problems and solutions
Read the detailed FAQ  on Itead Smart Home Forum. If below answers can’t solve your problem, please submit a feedback on eWeLink.
1. My device has added successfully but stays “Offline”.
Answers: The newly added device need 1-2 min to connect to your router and the Internet. If it stays offline for a long time, please judge the problem by the green led status:
1.1. Green led quickly blinks one time and repeats, which means device failed to connect to the router. The reason may be you have entered wrong WiFi password or your device is too far away from the router, which causes a weak WiFi signal. The device can not be added to the 5G-wifi-router, only the 2.4G-wifi is OK. At last, make sure that your router is MAC-open.
1.2. Green led slowly blinks one time and repeats, which means the device has connected to router and server but failed to be added to the device list. Then power on the device again, if it still not working, just add the device again.
1.3. Green led quickly blinks twice and repeats, this means the device has connected to the router but failed to connect to the server. Then please confirm your WiFi router works normally.
2. Why the APP can’t find the device in pairing status?
Answers: That’s because of your phone’s cache. Please close the WLAN of your phone then open it after a minute. At the same time, please power off the device if you can, then power up to try again.
3. My WiFi is expired, can I connect the devices to LAN?
Answers: the Wifi Touch Switch supports to be controlled by LAN(Update in 15/10/2017, LAN function has been stopped).
4. The green led keeps off, even if the device is powered on. Press the button but the device does not work.
Answers: The circuit may be broken, please send it back for testing. Return shipping postage and packaging will be at buyer’s expense, if the device is damaged by the buyer, and the buyer should bear extra repair cost

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