1. Introduction
The SONOFF MINIR4M is an extremely compact Wi-Fi smart switch designed to transform traditional switches into smart switches. It supports the Matter protocol, allowing seamless integration with other smart devices from various brands to create a customized home automation system. This device is compatible with Matter-enabled platforms such as Apple Home, Google Home, and Amazon Alexa, eliminating the need for multiple apps to control your smart devices.
Matter-certified devices like the MINIR4M support local communication within your home network, ensuring normal operation even if the internet connection is lost. This provides faster responsiveness and enhanced reliability.
Video: SONOFF MINIR4M Product Overview and Matter Integration Demo.
2. Key Features
- Matter Compatible: Works with Matter-enabled platforms like Apple Home, Google Home, and Amazon Alexa for unified smart home control.
- Mini Size: Its compact design (39.5x33x16.8 mm) fits into various mounting boxes, including 86/EU type and 120 type.
- External Switch Control: Easily connects to momentary switches, door exit switches, SPDT switches, latching switches, and dry contact sensors.
- Detach Relay Mode: Separates the states of external switches and the relay, allowing smart lights to remain online and controllable via the app even if the physical switch is off.
- Safe & Reliable: Obtained TÜV, CE, and FCC certifications for enhanced safety.
- Upgraded ESP32 Chip: For improved performance and connectivity.
- Schedule & Timer Functions: Set timers to automatically turn appliances on/off.
- Smart Scene Support: Works with motion, door, and window sensors to automate home scenarios.
- Local Connections: Supports local communication in the home network, ensuring functionality even without internet access.
Image: Visual representation of MINIR4M's key features including Detach Relay, Safety, External Switch Control, Matter Compatibility, Compact Size, APP & Voice Control, ESP32 Chip, Schedule, and Smart Scene.
3. Specifications
| Attribute | Value |
|---|---|
| Model | MINIR4M |
| MCU | ESP32-C3FN4 |
| Input | 100-240V ~ 50/60Hz 10A Max |
| Output | 100-240V ~ 50/60Hz 10A Max |
| Max. Power | 2400W@240V |
| Wi-Fi | IEEE 802.11b/g/n 2.4GHz |
| Dimension | 39.5x33x16.8 mm |
| Net Weight | 26.7g |
| Casing Material | PC V0 |
| Color | White |
| Applicable Place | Indoor |
| Working Temperature | -10℃~40℃ |
| Working Humidity | 5%~95% RH, non-condensing |
| Certified Compliance | CE/FCC/RoHS/SRRC/TUV/ISED |
| Executive Standard | EN IEC 60669-2-1 |
Image: Details on setting timers, rich logs, and voice control capabilities.
4. Package Contents
The MINIR4M package includes:
- 1x SONOFF MINIR4M Smart Switch
- 1x Instruction Manual
Image: SONOFF MINIR4M Smart Switch with its retail packaging.
5. Installation
WARNING: Please install and maintain the device by a professional electrician. To avoid electric shock hazard, do not operate any connection or contact the terminal connector while the device is powered on!
5.1. Power Off
Before any installation or wiring, ensure the power is completely off at the circuit breaker. This is crucial for safety.
Image: Illustration of turning off power at the circuit breaker.
5.2. Wiring Instructions
To ensure the safety of your electrical installation, it is essential that either a Miniature Circuit Breaker (MCB) or a Residual Current Operated Circuit Breaker (RCBO) with an electrical rating of 10A has been installed before the MINIR4M.
The MINIR4M supports various external switch types, including momentary, door exit, SPDT, and latching switches. Ensure all wires are connected correctly.
Important Notes:
- No matter if S1 and S2 are connected or left idle to the external switch, this device can be controlled by automation or the App.
- It is prohibited to connect S1 and S2 terminals to the neutral or ground wire, in order to avoid damaging the equipment and causing danger.
- Make sure all wires are connected correctly.
Wiring Diagrams:
Image: Wiring diagram for connecting the MINIR4M with a single external switch and a light bulb.
Image: Wiring diagram for connecting the MINIR4M with a double external switch and a light bulb.
User Tip: The wiring diagrams provided typically show a single load (e.g., one light bulb). If you intend to control multiple light bulbs with a single MINIR4M, ensure the total wattage of all connected bulbs does not exceed the device's maximum power rating (2400W@240V or 10A Max). Connect multiple loads in parallel to the 'L Out' and 'N' terminals, ensuring proper insulation and safety.
5.3. Physical Installation
The MINIR4M's tiny size allows it to fit into various mounting boxes, including the smallest European standard ones. Ensure there is enough space for the device and wiring within the box.
Image: MINIR4M shown installed within a wall box, highlighting its compact size and compatibility with various mounting boxes.
6. Setup and Pairing
After powering on the device, it will enter the Pairing Mode by default during the first use. The Network indicator (blue LED) will flash in a cycle of two short and one long blinks.
The device will exit Pairing Mode if not paired within 10 minutes. To re-enter Pairing Mode, long press the button for 5 seconds until the Network indicator flashes in a cycle of two short and one long blinks, then release.
6.1. Method 1: Matter Pairing
For Matter pairing, you can use a Matter-compatible app such as Amazon Alexa, Google Home, or Apple Home. Download the respective app if you haven't already.
- Open your preferred Matter-compatible App (e.g., Alexa App, Google Home App, or Apple Home App).
- Scan the Matter QR code found on the Quick Guide or directly on the device itself.
- Follow the on-screen instructions within the app to add the device.
Image: Illustration of eWeLink APP pairing process.
Image: Illustration of Matter pairing process by scanning a QR code.
6.2. Method 2: eWeLink App Pairing
If you prefer to use the eWeLink App, follow these steps:
- Download the eWeLink App: Search for "eWeLink" in the Google Play Store (Android) or Apple App Store (iOS) and install it.
- Power On the Device: Ensure the MINIR4M is powered on and in pairing mode (blue LED flashing two short, one long).
- Add Device in App:
- Open the eWeLink App.
- Tap the "+" icon or "Add Device" option.
- Select "Scan QR code" or follow the prompts to search for nearby devices.
- If prompted, long press the button on the MINIR4M for 5 seconds to ensure it's in pairing mode.
- Check the Wi-Fi LED indicator flashing status (two short and one long flashes).
- Select your Wi-Fi network and enter the password.
- Once connected, the device will be added to your eWeLink account.
7. Operating Instructions
7.1. Manual Control
Press the physical button on the MINIR4M once to change the on/off state of the relay contacts, controlling the connected appliance.
7.2. App Control
Once paired, you can control the MINIR4M via the eWeLink App or your chosen Matter-compatible app (Apple Home, Google Home, Alexa). This allows you to turn devices on/off remotely, set schedules, and create smart scenes.
7.3. Voice Control
Integrate the MINIR4M with voice assistants like Amazon Alexa, Google Assistant, or Apple HomeKit to control your connected devices using voice commands.
7.4. Detach Relay Mode
In "Detach Relay" mode, the states of external switches (S1/S2) and the internal relay are separated. This means operating the external switch button will not affect the relay's state. For example, if you enable this mode, your smart light will not go offline when you turn off the physical switch, and you can still control it via the app.
Image: Illustration of Detach Relay mode where a smart light remains online despite the physical switch being off.
Image: Illustration of normal operation without Detach Relay mode, where the physical switch directly controls the light.
7.5. Timer and Schedule Functions
Use the eWeLink App or your Matter-compatible app to set various timers (single, countdown, loop) and schedules to automate your appliances. For example, you can set lights to turn on automatically at 8:00 PM.
7.6. Smart Scenes
Create smart scenes by integrating the MINIR4M with other sensors (e.g., motion, door, window sensors) to automate actions based on specific triggers.
Image: Example of a smart scene where a motion sensor triggers a light.
7.7. Delay Power-on State
This feature provides additional protection by allowing you to set a delay for appliances to power on after a power outage. This prevents all appliances from turning on simultaneously, which could cause high currents and potential damage.
Image: Diagram illustrating delayed power-on states for different appliances in a house after a power outage.
8. Maintenance
- Keep the device clean and dry.
- Avoid exposing the device to extreme temperatures or humidity.
- Do not attempt to disassemble or repair the device yourself. Contact customer support if issues arise.
- Regularly check for firmware updates through the eWeLink App or your Matter-compatible app to ensure optimal performance and security.
9. Troubleshooting
9.1. Device Not Responding / Offline
- Check Power: Ensure the MINIR4M is receiving power.
- Wi-Fi Connection: Verify your Wi-Fi network is active and the device is within range. If using eWeLink, check the app for device status. For Matter, local communication should still work even without internet.
- Re-pair: If the device remains unresponsive, try re-entering pairing mode (long press button for 5s) and re-pairing it with your app.
- Router Issues: Restart your Wi-Fi router.
9.2. External Switch Not Working
- Wiring Check: Double-check the wiring connections for S1 and S2 terminals as per the installation diagrams. Ensure no loose connections.
- Switch Type: Confirm the external switch type is compatible (momentary, door exit, SPDT, latching).
- Detach Relay Mode: If "Detach Relay" mode is enabled, the physical switch will not directly control the load. Control via app or voice assistant.
9.3. Pairing Fails
- Pairing Mode: Ensure the device is in pairing mode (blue LED flashing two short, one long).
- Wi-Fi Credentials: Verify the Wi-Fi network name and password entered are correct.
- 2.4GHz Wi-Fi: The device only supports 2.4GHz Wi-Fi networks. Ensure your router is broadcasting on this frequency.
- Proximity: Keep your phone close to the MINIR4M during the pairing process.
- Router Settings: Some routers may have settings that interfere with smart device pairing. Consult your router's manual or ISP.
9.4. Overheating
- Load Check: Ensure the connected load does not exceed the maximum rating (10A Max / 2400W@240V).
- Ventilation: Ensure the installation location allows for adequate ventilation.
10. User Tips
- Matter Integration: When integrating with Matter, remember that you can generate a new setup code from one ecosystem app (e.g., Alexa) to sync the device to another (e.g., Apple Home). This allows for cross-platform control.
- Local Control: Take advantage of the local communication feature. Even if your internet goes down, your MINIR4M devices should still respond to commands within your local network, ensuring basic functionality.
- Automate with Scenes: Explore creating smart scenes with other sensors (motion, door/window) to automate daily routines and enhance convenience.
11. Safety and Compliance Information
11.1. FCC Warning
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:
- This device may not cause harmful interference, and
- This device must accept any interference received, including interference that may cause undesired operation.
Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
FCC Radiation Exposure Statement: This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with a minimum distance of 20 cm between the radiator and your body. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.
11.2. ISED Notice (Innovation, Science and Economic Development Canada)
This device contains license-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic Development Canada's license-exempt RSS(s). Operation is subject to the following two conditions:
- This device may not cause interference.
- This device must accept any interference, including interference that may cause undesired operation of the device.
This Class B digital apparatus complies with Canadian ICES-003.
SAR Warning: Under normal use conditions, this equipment should be kept a separation distance of at least 20cm between the antenna and the body of the user.
11.3. WEEE Warning (Waste Electrical and Electronic Equipment)
All products bearing this symbol are waste electrical and electronic equipment (WEEE as in directive 2012/19/EU) which should not be mixed with unsorted household waste. Instead, you should protect human health and the environment by handing over your waste equipment to a designated collection point for the recycling of waste electrical and electronic equipment, appointed by the government or local authorities. Correct disposal and recycling will help prevent potential negative consequences to the environment and human health.
11.4. EU Declaration of Conformity
Hereby, Shenzhen Sonoff Technologies Co., Ltd. declares that the radio equipment type MINIR4M is in compliance with Directive 2014/53/EU. The full text of the EU declaration of conformity is available at: https://sonoff.tech/usermanuals
12. Warranty and Support
Manufacturer: Shenzhen Sonoff Technologies Co., Ltd.
Address: 3F & 6F, Bldg A, No. 663, Bulong Rd, Shenzhen, Guangdong, China
ZIP code: 518000
Website: sonoff.tech
Service email: support@itead.cc
For detailed warranty information and further support, please visit the official SONOFF website or contact the service email provided.
