1. Folasaga
The Huacaoe EWeLink 1CH 7-32V Smart Switch is a versatile, single-channel self-locking relay module designed for remote control of household appliances. It offers mobile phone remote control via the eWeLink or Smart Life APP, timing and delay functions, and compatibility with voice assistants like Amazon Alexa and Google Assistant. This device operates as a dry contact (passive output) switch, meaning it does not supply voltage at its output terminals, acting as a wireless button or switch.
This manual provides detailed instructions for the safe installation, configuration, and operation of your smart switch.
2. Fa'amatalaga Saogalemu
- Saogalemu Faaeletise: Installation should only be performed by qualified personnel. Ensure the power supply is disconnected before any wiring work to prevent electric shock.
- Voltagu Fesoasoani: Faamaonia o le voltage (AC/DC 7-32V or USB 5V) matches your power source.
- Current Limits: Do not exceed the maximum current rating of 10A (2200W) for connected appliances.
- Siosiomaga: Aua ne'i fa'aalia le masini i le susu, vevela tele, po'o siosiomaga 'ele'elea.
- Feso'ota'iga mago: Remember that the output is a dry contact (passive output) and does not provide voltage. It acts as a switch to complete or break a circuit.
3. Oloa Ua Ovaview
The Huacaoe EWeLink Smart Switch (Model: EWB1CH-B1) features a compact design with clearly labeled terminals for easy installation. It includes a Wi-Fi module and a manual button for local control.

Ata 3.1: Luma view of the Huacaoe EWeLink Smart Switch, showing input terminals for AC/DC 7-32V or USB 5V, output terminals (NO, COM, NC), and model information.

Ata 3.2: Internal circuit board of the smart switch, highlighting the 10A relay, Wi-Fi module, manual button, and configure button. It also shows the USB 5V and AC/DC 7-32V power supply options.
4. Fa'amatalaga
| Parameter | Taua |
|---|---|
| Fa'ata'ita'iga | EWB1CH-B1 |
| Sao Voltage | AC/DC 7-32V or USB 5V |
| Max Nei | 10A (2200W) |
| Tulaga WiFi | 2.4G 802.11 b/g/n + Bluetooth |
| Galulue Vevela | -20℃ ~ 80℃ |
| Mea | Acrylonitrile Butadiene Styrene (ABS) |
| Fua (L x W x H) | 2.87 x 1.81 x 1.14 inisi (73 x 46 x 29 mm) |
| Metotia Pulea | Polokalama, Mamao, Pa'i, Leo |
| Feso'ota'iga Protocol | Wi-Fi |
| Ituaiga Faafesootai | E masani ona tatala (LEAI) |
| Suiga Ituaiga | Ki moligafua |
| Ituaiga Circuit | 1-auala |
| Ituaiga Fa'amau | DIN Mauga Mauga |

Ata 4.1: Physical dimensions of the smart switch and a diagram illustrating the dry contact output signal (NO, COM, NC).
5. Seti
5.1 Wiring and Installation
The smart switch operates as a dry contact relay, meaning its output terminals (NO, COM, NC) do not provide power. They simply open or close a circuit. The device itself requires a separate power supply.
- Malosiaga Ulufale: Connect your power source to the input terminals labeled "Input AC/DC 7-32V" or use the USB 5V port.
- So'oga Mea faigaluega: Connect the appliance or circuit you wish to control to the output terminals:
- COM (Tausau): This is the common terminal for the relay.
- LEAI (E masani ona tatala): The circuit between COM and NO is open when the relay is off and closed when the relay is on.
- NC (Tapuni masani): The circuit between COM and NC is closed when the relay is off and open when the relay is on.
- Ia mautinoa o feso'ota'iga uma o lo'o malupuipuia ma fa'amama.

Ata 5.1: Wiring diagram showing connections for relay power supply (USB 5V or AC/DC 7-32V) and the appliance power supply (DC 0-30V / AC 90-250V) to the NO/COM/NC terminals.
5.2 Fa'apipi'i App ma Feso'ota'iga Masini
The smart switch can be controlled via the eWeLink or Smart Life application. For optimal performance, ensure your router is online and the Wi-Fi module is kept close to the router.
- La'u mai le App: Download the eWeLink or Smart Life app from your smartphone's app store or by visiting http://app.coolkit.cc/dl.html.
- Sauniuni mo le Fa'apa'aga: Ensure your smartphone's 2.4G Wi-Fi, Bluetooth, and Location services are enabled.
- Ulufale Pairing Mode: Long press the configure button on the smart switch for 5 seconds. The night light indicator will begin to flash, indicating it is in pairing mode.
- Fa'aopoopo le masini ile App: Open the eWeLink or Smart Life app. Tap the "+" icon to add a new device. Select "Bluetooth Pairing" or allow the app to scan for nearby devices.
- Fa'amaonia le Masini: Once the app detects the device (e.g., "DeviceM210f"), confirm to add it.
- Fa'ato'a Fa'atonu: Follow the on-screen prompts to connect the device to your 2.4G Wi-Fi network and name it.

Ata 5.2: Step-by-step guide within the eWeLink app for adding and pairing the smart switch via Bluetooth.
6. Faʻagaioiga
6.1 Faiga Galue
The smart switch supports two primary working modes:
- Self-Locking (On/Off) Mode: In this mode, the relay acts as a traditional switch. A single command toggles its state (on to off, or off to on), and it remains in that state until another command is received.
- Momentary (Inching/Point-Moving) Mode: In this mode, the relay acts like a push-button. It momentarily changes its state (e.g., closes the circuit) for a set duration and then automatically returns to its original state. This is ideal for applications like garage door openers or gate controls.
You can configure these modes within the eWeLink or Smart Life app.
6.2 Pulea Mamao e ala i le Polokalama
Once paired, you can control the connected appliance from anywhere using the eWeLink or Smart Life app on your smartphone, provided you have an internet connection (2G/3G/4G mobile network or Wi-Fi).
6.3 Timing and Scheduling
The app allows you to set various timing functions to automate your appliances:
- Fa'asologa: Set specific times for the device to turn on or off daily or on selected days.
- Taimi i lalo: Set a timer for the device to turn off after a specified duration.
- Taimi Ta'amilosaga: Configure the device to repeatedly turn on and off at set intervals.
- La oso/ goto: Automate actions based on local sunrise and sunset times.

Ata 6.1: Screenshot of the eWeLink app demonstrating the intelligent timing function, allowing users to set schedules for device operation.
6.4 Pulea leo
The smart switch is compatible with Amazon Alexa and Google Assistant. After linking your eWeLink or Smart Life account to your voice assistant, you can use voice commands to control your connected appliances.
- Example Poloaiga:
- "Alexa, ki [Igoa o Meafaitino]."
- "Hey Google, tape [Igoa o le masini]."

Ata 6.2: The smart switch is compatible with the eWeLink app, Amazon Alexa, and Google Home, enabling diverse control options.
6.5 Multi-Person Sharing
You can share control of your smart switch with family members or other authorized users through the eWeLink or Smart Life app. This allows multiple individuals to manage the connected appliances.
7. Tausiga
- Fa'amamaina: Use a dry, soft cloth to clean the device. Do not use harsh chemicals or abrasive cleaners.
- Siaki So'oga: Periodically inspect wiring connections to ensure they are secure and free from corrosion.
- Faʻalauiloa Firmware: Keep the eWeLink or Smart Life app updated to receive the latest features and security enhancements. The app may also prompt for device firmware updates.
8. Faʻafitauli
- E le tali mai masini:
- Siaki pe o ola le masini i luga.
- Ensure your Wi-Fi router is online and the device is within range.
- If Wi-Fi is disconnected, try controlling via Bluetooth if you are in close proximity.
- Restart the device by disconnecting and reconnecting its power supply.
- Fa'ato'a fa'alua:
- Ensure your phone's 2.4G Wi-Fi, Bluetooth, and Location services are enabled.
- Confirm your Wi-Fi network is 2.4GHz, as 5GHz networks are not supported.
- Make sure the device is in pairing mode (flashing indicator light).
- Try moving the device closer to your Wi-Fi router during pairing.
- Fa'afitauli Pulea leo:
- Verify that your eWeLink/Smart Life account is correctly linked to Alexa or Google Assistant.
- Check the device name in the app and use that exact name in your voice commands.
- Ensure your voice assistant device is connected to the internet.
9. Fa'amaonia ma Lagolago
Fa'amaonia: Fa'amolemole taga'i i le afifiina o le oloa po'o le tusi aloaia a le kamupani gaosi oloa. website for detailed warranty information regarding your Huacaoe EWeLink Smart Switch.
Lagolago: For technical assistance, troubleshooting, or any product-related inquiries, please contact Huacaoe customer service through their official channels or the support section within the eWeLink/Smart Life application.