MHCOZY 2CH WiFi RF Wireless Relay Switch User Manual

1. Introduction

The MHCOZY 2-channel Smart Life/Tuya WiFi Relay Smart Switch Module is designed to provide wireless control over your household appliances or electrical devices. This versatile module supports both WiFi and 433 MHz RF communication, offering flexible control options including app remote control, voice control via Alexa and Google Home, and various operating modes such as inching, self-locking, and interlock. It is ideal for DIY smart home projects, enabling automation for applications like garage doors, lighting, and motor control.

Image: The MHCOZY 2-channel WiFi RF Wireless Relay Switch Module, showcasing its compact design with two relays and control circuitry.

2. Package Contents

• 1 x MHCOZY 2-channel WiFi Wireless Smart Home Switch Module
• 1 x English Instruction Manual

3. Features

• Dual Control: Supports both WiFi and 433 MHz RF wireless control.
• Easy Configuration: Quick setup via phone Bluetooth to connect to 2.4G WiFi network.
• Multiple Operating Modes: Inching, Self-locking, and Interlock modes for diverse applications.
• App Control: Remote control via Smart Life/Tuya app, allowing device renaming and channel-specific control.
• Voice Control: Compatible with Alexa-enabled devices (Echo/Tap/Dot) and Google Home for hands-free operation.
• Scheduling: Set up to 8 enabled single/repeat/countdown timers for automatic device control, even offline.
• Sync Status: Real-time device status provided in the app.
• Sharing Function: Easily share remote control access with family members.
• Wide Application: Suitable for automating lights, garage doors, shutters, and various household appliances.

Image: The MHCOZY module highlighting its compatibility with Smart Life, Tuya, 2.4G WiFi, 433MHz RF, Google Assistant, and Amazon Alexa, along with visual representations of app and voice control.

4. Specifications

5. Safety Information

Please read and understand all safety instructions before installing or operating this device. Failure to follow these instructions may result in electric shock, fire, or property damage.

• Ensure the power supply is disconnected before any wiring or installation.
• This device operates with electrical currents; exercise caution and consult a qualified electrician if unsure about wiring.
• Do not expose the device to excessive moisture, extreme temperatures, or corrosive environments.
• Keep out of reach of children.
• Do not attempt to disassemble or modify the device.

6. Setup and Installation

6.1. Device Overview and Wiring

Familiarize yourself with the components and connection points of the relay module before wiring. The module supports two power input options: USB 5V or AC/DC 7-32V.

Image: Detailed diagram of the MHCOZY module, indicating the Reset button, Manual switches, Relays, Network indicator, Input terminals (DC 7V~32V, USB 5V), and output terminals (NC, COM, NO).

6.2. Wiring Examples for Different Modes

The module offers various wiring configurations depending on the desired operating mode (Interlock or Self-lock) and the type of appliance being controlled (e.g., motor, lights).

Image: Wiring diagrams illustrating connections for Interlock Mode (for motor control, including three-wire motor and motor download/upload configurations) and Self-lock Mode (for appliance control, such as lights, with AC 220V).

6.3. App Configuration (Smart Life / Tuya App)

To control the device remotely and access smart features, you need to connect it to the Smart Life or Tuya app.

1. Download the App: Download and install the "Smart Life" or "Tuya Smart" app from your mobile app store (Google Play Store for Android, Apple App Store for iOS).
2. Register/Login: Open the app and register for a new account or log in if you already have one.
3. Power On Device: Connect the MHCOZY module to a power source (USB 5V or AC/DC 7-32V). The network indicator light should start blinking.
4. Add Device: In the app, tap the "+" icon (usually in the top right corner) to add a new device.
5. Auto Scan/Manual Add: The app should automatically detect the device via Bluetooth. If not, select "Electrical" or "Switch" from the device list and follow the on-screen instructions for manual pairing.
6. Connect to Wi-Fi: Select your 2.4GHz Wi-Fi network and enter the password. The device will connect to your network.
7. Rename Device/Channels: Once connected, you can rename the device and each individual channel for easier identification and control (e.g., "Garage Door 1", "Garage Door 2").

After successful configuration, you can control the device remotely via the app, even if the module temporarily loses its Wi-Fi connection (Bluetooth control may still be available).

7. Operating Modes and Functions

7.1. Inching Mode (Momentary)

In Inching Mode, when you activate the relay via the mobile app, it will immediately turn on and then automatically turn off after a set duration. The default duration is one second, but you can adjust the inching time from 0.5 seconds up to 1 hour within the app. This mode is ideal for applications requiring a brief pulse, such as opening a garage door or gate.

7.2. Self-locking Mode (Toggle)

Self-locking Mode allows you to independently turn connected devices ON or OFF. Each channel acts as a toggle switch: one tap turns it ON, and another tap turns it OFF. This mode is suitable for controlling lights or other appliances that need to remain in a specific state (ON/OFF) until manually changed.

7.3. Interlock Mode

Interlock Mode ensures that only one device connected to the module can be active at any given time. When one channel is turned ON, all other channels automatically turn OFF. This mode is particularly useful for motor control applications, such as controlling the up/down movement of blinds or shutters, preventing conflicting commands.

7.4. Scheduling and Timers

The app allows you to create up to 8 enabled single, repeat, or countdown timers. These timers can automatically turn devices ON or OFF at specified times. This feature operates independently, meaning timers will execute even if the network connection is unavailable.

Image: A smartphone screen displaying the scheduling interface within the app, demonstrating how to set up automated ON/OFF times for controlling a garage door.

7.5. Voice Control (Alexa & Google Home)

The MHCOZY module seamlessly integrates with Amazon Alexa and Google Home for convenient voice control. After linking your Smart Life/Tuya account to your voice assistant, you can use simple voice commands to operate connected devices.

Example Voice Commands:

• "Alexa, turn on the light."
• "Alexa, turn on Garage Door."
• "Hey Google, turn off the bedroom light."

Image: An illustration of voice control functionality, showing a person in bed using voice commands to control a device, with Amazon Alexa and Google Home speakers depicted.

8. Applications

The MHCOZY 2CH WiFi RF Wireless Relay Switch is highly versatile and can be used to smartify a wide range of household appliances and systems. It can replace most normal buttons and switches to add smart control capabilities.

Image: A diagram illustrating various potential applications for the smart relay module, including control of a toaster, clock, chandelier, computer, remote-controlled devices, fan, washing machine, and garage door.

9. Troubleshooting

• Device not connecting to Wi-Fi:
  • Ensure your Wi-Fi network is 2.4GHz. This device does not support 5GHz networks.
  • Check your Wi-Fi password for accuracy.
  • Move the device closer to your Wi-Fi router.
  • Restart your router and the MHCOZY module.
• Voice control not working:
  • Ensure your Smart Life/Tuya account is correctly linked to your Alexa or Google Home app.
  • Check the device name in the Smart Life/Tuya app and use that exact name in your voice commands.
  • Verify that your voice assistant device (Echo, Google Home) is online and functioning correctly.
• Device unresponsive:
  • Check the power supply to the module.
  • Verify the wiring connections are secure.
  • If using Bluetooth control, ensure Bluetooth is enabled on your phone and the device is within range.
  • Perform a factory reset if necessary (refer to the app for reset instructions).

10. Maintenance

The MHCOZY module requires minimal maintenance. To ensure optimal performance and longevity:

• Keep the device clean and free from dust. Use a soft, dry cloth for cleaning.
• Avoid exposing the device to direct sunlight or extreme temperatures.
• Ensure proper ventilation if installed in an enclosed space.
• Regularly check wiring connections for any signs of wear or looseness.

11. Warranty and Support

This product is manufactured by Mic technology co.,ltd. For warranty information and technical support, please refer to the seller's policy on the platform where the product was purchased or contact the manufacturer directly. Keep your purchase receipt as proof of purchase.