1. Introduction
The SONOFF S40 Lite Zigbee Smart Plug is a compact, ETL certified smart outlet designed to integrate traditional appliances into your smart home ecosystem. It functions as a Zigbee repeater, extending the range of your Zigbee network. This device allows for remote control, voice control, and scheduling of connected appliances when paired with a compatible Zigbee hub.
2. Product Features
- Zigbee Protocol Integration: Requires a compatible Zigbee hub (e.g., SmartThings, Amazon Echo Plus) for control.
- Smart Control: Manage traditional lighting and appliances remotely via your smartphone.
- Scheduling: Set custom schedules, including sunrise and sunset routines, to automate appliance operation.
- Wide Compatibility & Voice Control: Compatible with Amazon Alexa and SmartThings for convenient voice commands.
- Compact Design: Engineered to be small and compact, ensuring it does not obstruct adjacent outlets.
- Zigbee Repeater Functionality: Extends the signal range of your existing Zigbee network.
3. Product Overview
The SONOFF S40 Lite Zigbee Smart Plug features a minimalist design with a single power outlet and a control button. Its compact form factor allows for efficient use of wall outlets.
Figure 3.1: SONOFF S40 Lite Zigbee Smart Plug, front view.
The plug's compact design ensures that it does not block other outlets, allowing for multiple devices to be plugged in simultaneously.
Figure 3.2: Two SONOFF S40 Lite plugs installed in a standard duplex outlet, demonstrating compact design.
The internal structure incorporates several safety features to ensure reliable and secure operation.
Figure 3.3: Cutaway view of the smart plug, illustrating internal safety components.
4. Specifications
| Attribute | Value |
|---|---|
| Model Number | S40ZBTPB Lite |
| Current Rating | 15 Amps |
| Operating Voltage | 120 Volts |
| Wattage | 1800 watts |
| Connectivity Protocol | Zigbee |
| Control Method | Voice, Remote |
| Compatible Devices | SmartThings, Amazon Echo Plus |
| Item Dimensions (L x W x H) | 3 x 2.1 x 1.6 inches |
| Item Weight | 3.2 ounces |
| Color | White |
| Material | Brass (Contact Material) |
| International Protection Rating | IP00 |
5. Setup and Pairing
To set up your SONOFF S40 Lite Zigbee Smart Plug, follow these steps:
- Power On: Plug the smart plug into a standard 120V AC outlet.
- Enter Pairing Mode: Press and hold the button on the side of the smart plug for 5-7 seconds until the LED indicator blinks. This indicates the device is ready for pairing.
- Open App: Open your compatible Zigbee hub's application (e.g., SmartThings, Amazon Alexa app).
- Initiate Device Search: Follow the app's instructions to add a new device or search for nearby Zigbee devices.
- Confirm Pairing: Once the device is found, confirm the pairing within the app. The LED indicator on the smart plug will change to a solid light, indicating successful connection.
For a visual guide on the pairing process, refer to the video below. Note that while the video title mentions 'WiFi Smart Plug', the pairing steps for initial app connection are generally similar for Zigbee devices before connecting to a hub.
Video 5.1: Demonstration of the app pairing process for a SONOFF smart plug.
6. Operation
6.1 Manual Control
You can manually turn the connected appliance on or off by pressing the physical button on the side of the SONOFF S40 Lite Smart Plug. Each press will toggle the power state.
Figure 6.1: Manual control of an appliance via the smart plug's button.
6.2 App Control
Once paired with your Zigbee hub, you can control the smart plug remotely using the associated mobile application (e.g., SmartThings app, Amazon Alexa app). Open the app, select the S40 Lite plug, and tap the power icon to toggle its state.
6.3 Voice Control
Integrate your smart plug with voice assistants like Amazon Alexa. After linking your Zigbee hub to Alexa, you can use voice commands such as: "Alexa, turn on the [appliance name]" or "Alexa, turn off the [appliance name]".
Figure 6.2: Using Amazon Alexa for voice control of a connected appliance.
6.4 Scheduling and Routines
Utilize the features within your Zigbee hub's application to create schedules and routines for your smart plug. This includes:
- Time-based Schedules: Set specific times for the plug to turn on or off daily or on selected days.
- Sunrise/Sunset Routines: Automate lighting or other devices to activate or deactivate based on local sunrise and sunset times.
- Smart Scenes: Create custom automation rules that trigger the plug based on other smart devices (e.g., turn on a fan when a temperature sensor detects a certain temperature).
Figure 6.3: Example of scheduling an appliance with the smart plug.
7. Compatibility
The SONOFF S40 Lite Zigbee Smart Plug is designed to work with various mainstream Zigbee hubs and platforms:
- Zigbee Hubs: Compatible with SmartThings, Amazon Echo Plus (and other Echo devices with built-in Zigbee hub), and SONOFF Zigbee Bridge.
- Voice Assistants: Supports Amazon Alexa for voice control.
Figure 7.1: Compatibility with various Zigbee hubs.
8. Safety Information
The SONOFF S40 Lite Zigbee Smart Plug incorporates several safety features to ensure user protection and product longevity:
- Highest Flame-retardant Material: Constructed with V-0 grade flame-retardant device enclosure for enhanced safety.
- Super Insulation & Fireproof Design: The plug's head is designed to prevent carbonization even under powered voltages up to 400V.
- Varistor for Spike Voltage Absorption: Includes a varistor to cut off high voltage generated by lightning strikes or unstable power supply, protecting connected devices.
- Fuse Automatic Fusing: Features an automatic fuse to protect internal components from damage caused by short circuits.
Always ensure the smart plug is used within its specified electrical ratings (15A, 120V, 1800W) to prevent overload and potential hazards. Do not disassemble or modify the device.
9. Troubleshooting
- Device Not Pairing: Ensure the smart plug is in pairing mode (blinking LED). Verify your Zigbee hub is powered on and within range. Check that your mobile device's Bluetooth is enabled for initial setup.
- Connectivity Issues: If the plug frequently disconnects, try moving it closer to your Zigbee hub or adding another Zigbee repeater to strengthen the network signal. Ensure your Zigbee network is not overcrowded.
- App Control Not Responding: Check your internet connection and ensure your Zigbee hub is online. Restart the mobile application.
- Voice Control Not Working: Confirm that your Zigbee hub is correctly linked to your voice assistant (e.g., Amazon Alexa). Check the device name in the voice assistant app for accuracy.
- No Power to Appliance: Verify the smart plug is securely plugged into the wall outlet and the appliance is correctly plugged into the smart plug. Check the smart plug's status indicator.
