Scimagic-RC Tuya Smart Home 2-Channel WiFi Relay Module User Manual

1. Product Overview

The Scimagic-RC Tuya Smart Home 2-Channel WiFi Relay Module is a versatile wireless smart switch designed to integrate with your smart home system. It supports both inching and self-locking modes, allowing users to remotely control connected home appliances and electronic devices via the Smart Life or Tuya Smart mobile application. This module also features an RF 433MHz module for indoor remote control using a compatible RF remote controller.

With two independent channels, you can connect and control two appliances simultaneously, turning each on/off independently. The module supports timing functions for scheduled operations and can be shared with family members for collaborative smart home management. Additionally, it offers voice control compatibility with popular platforms like Amazon Alexa and Google Home/Nest, enhancing your intelligent living experience.

Figure 1: Tuya Smart Switch module with WiFi, Tuya, Smart Life, Alexa, Google Assistant logos.

Figure 2: Intelligent Switch Module overview, showing its use in various smart home scenarios.

2. Specifications

Feature	Description
Channels	2
Input Voltage 1	DC/AC 7-32V
Input Voltage 2	AC 85-250V
Output	Signal output only, no voltage output
Max Current	2200W/10A
WiFi Standard	WiFi 2.4 GHz b/n/g
Communication Method	RF, Wi-fi
Size	1003520mm
Relay Model Life	More than 1,000,000 operations
Operating Humidity	40% ~ 80% RH
Working Temperature	-20°C to +70°C
APP	Smart Life / Tuya Smart
Compatibility	All Compatible (Alexa, Google Home)
Certification	CE

Note on USB Input: The old version of this module supported USB 5V input, but the new version does not. This manual refers to the new version.

Figure 3: Comparison of AC 85-250V and AC/DC 7-32V modules.

Figure 4: AC 85-250V and AC/DC 7-32V modules, noting 'Does not include USB'.

3. Package Contents

Upon opening the package, please ensure all items are present and in good condition:

1x WiFi Module
1x User Manual

4. Setup Instructions

4.1. Prerequisites

Before proceeding with the setup, ensure the following conditions are met:

Your smartphone or tablet is connected to a 2.4GHz WiFi network with internet access. (5GHz networks are not supported).
Bluetooth is enabled on your smartphone or tablet.
You have the correct WiFi password for your 2.4GHz network.
Your smartphone or tablet has access to the APP Store (iOS) or Google Play Store (Android).
Your router is configured to be MAC-open.

4.2. App Download and Account Registration

Download the companion application by searching for "Tuya Smart" or "Smart Life" in your mobile app store, or by scanning the QR code provided in the physical manual.
If you are a new user, register a Tuya Smart/Smart Life account.
If you already have an account, simply log in.

4.3. Device Reset (if necessary)

If the network indicator (red light) on the module is already blinking fast (approximately 0.5 seconds per blink), you can skip this step. Otherwise, to reset the device:

Power on the module.
Press and hold the Reset button on the module for approximately 10 seconds.
Release the button when the network indicator (red light) begins blinking fast (0.5 seconds per blink). This indicates the device is ready for pairing.

4.4. WiFi Pairing with App

Open the Tuya Smart or Smart Life app on your smartphone.
In the app, click the "+" icon in the top right corner to add a device.
Select "Auto scan" and wait a few seconds for the app to discover your device.
Once the device is found, click "Next".
Select your 2.4GHz Wi-Fi network from the list and enter its password.
Follow the on-screen prompts to name your device.
The device is now connected and ready for app control.

4.5. RF Remote Control Setup (Optional)

This module supports 433MHz learning code RF remote controls. If you have a compatible RF remote, you can pair it with the module:

Ensure the module is powered on and paired with the app.
In the app, navigate to the device settings.
Look for an option like "RF remote control setup" or similar.
Click "Add" to initiate the pairing process. The app will prompt you to press a button on your remote within 10 seconds.
Press the desired button on your RF remote controller. The app should confirm "Add a success".
You can then assign specific functions (e.g., "close", "open", "state switch") to the remote buttons within the app settings for each switch.

Video 1: Demonstration of app pairing, RF remote setup, and scheduling functions.

5. Operating Instructions

5.1. App Control

Once paired, you can control your devices remotely from anywhere using the Smart Life/Tuya Smart app:

Remote ON/OFF: Turn connected electrical devices on or off.
Independent Control: Each of the two channels can be controlled separately within the app.
Timing: Set up to 8 enabled countdown, single, or repeat timing tasks to automatically turn devices on/off at specified times.

Figure 5: APP Remote Control in a living room setting.

5.2. RF Remote Control

If you have paired an RF 433MHz remote control, you can use it to turn devices on/off indoors. Ensure the remote has a 12V 23A battery (not included).

Figure 6: RF Remote Control, showing a 4-button remote and battery type (12V 23A).

5.3. Working Modes

The module supports three working modes: inching, self-locking, and interlock. You can switch between these modes in the app settings:

Inching Mode: When activated, the relay will turn on for a set duration (default 1 second) and then automatically turn off. The inching time can be customized in the app from 1 second to 3600 seconds. This is useful for momentary actions like opening a garage door.
Self-locking Mode: The relay acts as a traditional toggle switch. Pressing the button turns the device on, and pressing it again turns it off.
Interlock Mode: (Also known as momentary or latching mode) In this mode, when one relay is turned on, the other relay(s) in the same group will automatically turn off. This is ideal for controlling devices like motor forward/reverse functions where only one state should be active at a time.

Figure 7: Application scenario: 'Run 4 Devices Separately - Self-locking Mode' in a house layout.

5.4. Voice Control

Integrate your module with voice assistants for hands-free control:

Amazon Alexa: Link your Tuya Smart/Smart Life account to Alexa to control devices with voice commands (e.g., "Alexa, turn on the light").
Google Home/Nest: Link your Tuya Smart/Smart Life account to Google Home/Nest to control devices with voice commands (e.g., "Hey Google, turn off the fan").

Figure 8: Comparison of Traditional Switch vs. WiFi Smart Switch, highlighting voice control with Alexa/Google Assistant.

5.5. Share Control

You can share control of your smart devices with family members:

In the Smart Life/Tuya Smart app, go to the device settings.
Look for the "Share Device" or "Share Control" option.
Follow the instructions to invite other users to control the device.

Figure 9: Share Function illustration, showing family members sharing control via the app.

Figure 10: Illustrations of 'One phone control multi-switches' and 'One switch control multi-phones'.

6. Maintenance

To ensure the longevity and optimal performance of your WiFi Relay Module, please follow these maintenance guidelines:

Keep the device in a dry environment, away from moisture and humidity.
Avoid exposing the device to extreme temperatures.
Clean the device periodically with a soft, dry cloth. Do not use liquid cleaners or aerosols.
Ensure proper ventilation around the module to prevent overheating.

7. Troubleshooting

If you encounter issues with your WiFi Relay Module, refer to the following common problems and solutions:

7.1. Device Not Connecting to WiFi

Check WiFi Network: Ensure your router is broadcasting a 2.4GHz WiFi signal. The module does not support 5GHz networks.
Correct Password: Double-check that you are entering the correct WiFi password.
Router Settings: Verify that your router is MAC-open.
Signal Strength: Make sure the module is within range of your WiFi router and has a strong signal.
Reset and Re-pair: Perform a device reset (Section 4.3) and attempt the WiFi pairing process again (Section 4.4).

7.2. RF Remote Control Not Working

Battery Check: Ensure the RF remote has a fresh 12V 23A battery installed.
Pairing: Confirm that the RF remote has been successfully paired with the module (Section 4.5). If not, repeat the pairing process.
Line of Sight: While RF signals generally penetrate walls, ensure there are no major obstructions or interference sources between the remote and the module.

7.3. App Control Issues

Internet Connection: Verify that your smartphone has an active internet connection.
App Version: Ensure your Smart Life/Tuya Smart app is updated to the latest version.
Device Status: Check the device status in the app. If it shows offline, try re-pairing the device.

8. User Tips

App Compatibility: This device is designed to work with the Tuya Smart or Smart Life app. It is not compatible with other smart home apps like Ewelink.
Stable WiFi: A stable 2.4GHz WiFi connection is crucial for reliable operation. If you experience frequent disconnections, consider optimizing your router placement or using a WiFi extender.
Customizing Inching Time: The default inching time is 1 second. You can adjust this duration from 1 second to 3600 seconds within the app settings to suit your specific application.

9. Warranty and Support

For any warranty claims, technical support, or inquiries, please contact the manufacturer or your point of purchase. Please refer to your purchase documentation for specific warranty terms and conditions.

Manufacturer: ShenZhen Scimagic Development Technology Co., Ltd

Address: Gebu Building 1406, Songgang, Baoan Shenzhen, China.

Scimagic-RC Tuya Smart Home 2CH Wifi Relay Module