📌 SmartThings + SONOFF Matter Device Setup Guide

Introduction

With support for Matter devices, SmartThings allows seamless integration of SONOFF smart devices like the M5 Matter smart wall switch, giving you fast local control, voice commands through voice assistants, and access to rich automation via Samsung's smart home platform.

This guide walks you through how to set up and manage SONOFF Matter devices in the SmartThings app, using Matter's secure, local-first connectivity.

—— Learn More about Matter

Preparation

Before beginning, please ensure the following:

• Matter-certified device with a QR code or setup code (e.g., SONOFF M5 Matter)
• A smartphone with the SmartThings app installed (iOS 16.5+ or Android 8.1+)
• A 2.4GHz Wi-Fi network (shared between phone and Matter device)
• A Matter Controller connected to SmartThings, such as: SmartThings Station, Aeotec Smart Home Hub, SmartThings Hub V3, Samsung Galaxy phone (One UI 5.0+) with Matter Controller support, etc. （Check SmartThings x Matter Integration here）

Make sure SmartThings and your phone OS are fully updated to support Matter onboarding.

Setup Guide

Step 1: Add A Matter Controller to SmartThings

Here we use the Aeotec Smart Home Hub as the Matter controller.

1. Power on the Aeotec Smart Home Hub
2. Tap "Add device", then select "Aeoec", scan the hub QR code and then follow the on-screen instructions.

3. After the Aeotec Smart Home Hub connected successfully, you can find it on the App home page.

​Step 2: Add the Device in SmartThings App

1. Wire and power on SONOFF M5 Matter (The device enters the pairing mode by default when powered on for the first time, and the LED indicator flashes two short and one long.)
2. If not, press and hold the physical button for 5–10 seconds until the LED blinks.
3. SmartThings will automatically discover the device, then tap "Add"
4. Scan the Matter QR code on M5 Matter or its product Quick Guide
5. Follow the on-screen steps to:

• Connect the device to your Wi-Fi
• Wait for the device to connect with the app

Once connected, you can rename the device and set the icon for it, and the device appears in your SmartThings dashboard for control and automation.

SONOFF Matter Devices List

All SONOFF Matter devices listed below are compatible with SmartThings:

Stay tuned for more SONOFF Matter-compatible devices.

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Troubleshooting

Device not found during setup?

• Make sure M5 Matter is in pairing mode (LED blinking rapidly)
• Ensure you scanned the correct Matter QR code
• Check that your Matter controller is available and active

SmartThings can't scan the QR code?

• Use the QR code printed on the product Quick Guide or use the numeric setup code (you can find it in the eWeLink App - Device Settings).
• Clean the camera lens and ensure good lighting

Already paired with another platform?

• Matter devices can only be paired with one controller at a time
• Reset the device by holding the button for 10+ seconds before retrying

Automation not triggering?

• Confirm Wi-Fi stability and that SmartThings routines are configured properly
• Check the app permissions and SmartThings location settings

FAQ

Q: Can I use SmartThings to control SONOFF M5 Matter without internet?
A: Yes. Once paired, control is local via Wi-Fi, although cloud services require internet for remote access.

Q: Can I add the same M5 Matter switch to SmartThings and other ecosystems?
A: Yes. Matter supports multi-admin. After pairing with SmartThings, you can share it to platforms like Google Home, Apple Home or other Matter ecosystems.

Q: Is a Samsung SmartThings Hub required?
A: Not necessarily. Many Samsung Galaxy phones now serve as Matter controllers. However, for full automation and hub-based features, a SmartThings Station or compatible hub is recommended.

Q: Can I add multiple SONOFF Matter devices to SmartThings at once?
A: No. Matter onboarding is done one device at a time to ensure secure authentication.