Sonoff MINI ONE (16A) – Relay module, phase + neutral, Wi-Fi, Matter (MINI-1GS)

The SONOFF MINI ONE MINI-1GS is a 100–240 V AC powered, 16 A, single-channel Matter over Wi-Fi smart relay for switching lighting, electric heating, water heaters and other mains-powered loads. It is designed for flush-mounted installation behind an existing wall switch and requires both live and neutral conductors for operation. The manufacturer specifies a maximum resistive load of 3840 W.

The relay uses 2.4 GHz Wi-Fi connectivity and native Matter support, allowing integration with Apple Home, Google Home, Amazon Alexa, SmartThings and Home Assistant. In addition to eWeLink, a local OpenEdge web interface and JSON-RPC 2.0 API are also available, with HTTP, WebSocket and MQTT communication.

The S1 switch input can be used with both toggle switches and momentary push-buttons. With the Detach Relay function, the physical switch input can be separated from the relay state, allowing, for example, continuous power to a smart bulb while the wall switch is used as an automation input. The two L Out terminals belong to the same single relay output, so loads connected to them switch simultaneously.

About SONOFF

SONOFF manufactures smart home devices, relay modules, energy meters, wall switches, Zigbee sensors, control panels, gateways and various electrical installation accessories. Its product range includes devices using Wi-Fi, Zigbee, Matter and LAN communication.

SONOFF devices are primarily based on the eWeLink platform, but many products can also be integrated with Home Assistant, Zigbee2MQTT, ZHA, SmartThings, Alexa, Google Home and other smart home systems. OpenEdge-compatible models also support local web-based management and documented API integration.

Key product features

• 16 A load capacity: Can switch resistive loads up to 16 A / 3840 W.
• Matter compatibility: Can be used with Apple Home, Amazon Alexa, SmartThings, Home Assistant, Google Home and other Matter-compatible systems.
• Open API: Local integration based on JSON-RPC 2.0 through HTTP, WebSocket and MQTT connections.
• OpenEdge local management: Can be controlled and configured from a browser without an app or cloud connection.
• Compact design: Can be installed in EU-standard round wall boxes as well as 86/120 type installation boxes.
• Protection functions: The device can disconnect the connected load in the event of overload or overheating.

Smart home protocols and platform compatibility

• Wi-Fi: 2.4 GHz IEEE 802.11 b/g/n connection.
• Matter over Wi-Fi: Native Matter device; no separate Matter Bridge is required.
• eWeLink: Remote control, schedules, automations, logs, group control and device sharing.
• Apple Home: Can be integrated through Matter, with Siri voice control.
• Google Home: Can be integrated directly through Matter.
• Amazon Alexa: Can be integrated and voice-controlled through Matter.
• SmartThings: Can be integrated through Matter.
• Home Assistant: Can be integrated using Matter or MQTT Discovery.
• MQTT: Supports native MQTT communication with Home Assistant MQTT Discovery support.
• HTTP / WebSocket: A local API based on JSON-RPC 2.0 is available.
• OpenHAB: Can be integrated through the open API.
• IFTTT: Can be used through eWeLink account linking.

Smart features

• Remote ON/OFF control: The relay status can be checked and switched remotely.
• Scheduling: Switching on or off can be configured for a specific time.
• Loop timer: Repeating switching at configured intervals can be set.
• Random timer: Random switching can be performed within a specified time period.
• Countdown: Delayed switching on or off can be configured.
• Inching mode: Automatic switching on or off can be configured from 0.5 seconds up to 23 hours, 59 minutes and 59.5 seconds.
• Switch input modes: Pulse, Edge and Following operating modes are available.
• Detach Relay: The external switch can be detached from the relay state, allowing the switch to be used as an automation input.
• LAN control: The eWeLink app can communicate directly with the device when connected to the same local network.
• Power-on state: The relay state after power is restored can be configured.
• Delayed power-on: Switching on after power restoration can be delayed.
• Smart scenes: Relay ON/OFF status and, in Detach Relay mode, operation of the external switch can be used as automation conditions.
• Group control: Multiple compatible devices can be switched together.
• Event log: Relay status changes can be reviewed.
• Push notifications: Notifications can be sent for switching on, switching off and offline status.
• Sharing: The device can be shared with other eWeLink accounts.

OpenEdge local functions

• Local web control: The relay can be switched from a browser without an app or cloud connection.
• Timers: Schedule, Loop, Countdown and Random timers can also be configured from the local web interface.
• Matter pairing: Matter pairing can also be started from the OpenEdge interface.
• Network status: Displays the SSID, IP address, MAC address, connection status and Wi-Fi signal strength.
• Wi-Fi and AP settings: The Wi-Fi connection and the device's own access point can be configured.
• MQTT configuration: Connection to an external MQTT broker can be configured locally.
• WebSocket configuration: An outgoing WebSocket connection can be configured for external systems.
• Cloud connection: Cloud connection settings can be managed from the OpenEdge interface.
• Device settings: LED indication, power-on state, inching mode, debugging and access settings can be managed.
• Time and location data: System time and location information can be configured.
• Firmware management: Firmware can be updated and managed locally.
• System functions: Restart and factory reset can also be initiated directly from the web interface.

Electrical features

• Supply voltage: 100–240 V AC, 50/60 Hz.
• Maximum current: 16 A resistive load.
• Maximum power: 3840 W.
• Number of circuits: 1 switchable circuit.
• Output: Switched live output.
• Two L Out terminals: Both terminals belong to the same relay. Loads connected to them switch simultaneously, and their combined load must not exceed 16 A.
• Switch input: 1 × S1 input.
• Supported switch types: Toggle switch and momentary push-button.
• Neutral wire: A neutral conductor is required for operation.
• Protection: Includes overload and overtemperature protection.
• Wire cross-section: 0.75–2.5 mm² solid or stranded copper conductor.
• Upstream protection: The manufacturer specifies a maximum 16 A MCB or RCBO compliant with local standards.
• Mains system: Suitable for single-phase 100–240 V AC systems.

Technical specifications

• Product series: SONOFF MINI Extreme Series Gen5
• Product name: MINI ONE – Matter over Wi-Fi version
• Model: MINI-1GS
• MCU: ESP32-C6
• Rated parameters: 100–240 V AC, 50/60 Hz, max. 16 A resistive load
• Maximum power: 3840 W
• Wi-Fi: IEEE 802.11 b/g/n, 2.4 GHz
• Dimensions: 39.5 × 33 × 16.8 mm
• Colour: White and orange
• Housing material: PC
• Recommended wire cross-section: 0.75–2.5 mm², solid or stranded copper conductor
• Installation: Indoor, concealed installation
• Operating temperature: -10–40 °C
• Operating humidity: 10–90% RH, non-condensing
• Certifications: CE, RoHS, FCC

Additional features

• Compact design: With dimensions of 39.5 × 33 × 16.8 mm, it can be installed in a wall box behind a wall switch.
• Recommended wall box depth: 60 mm.
• Compatible wall boxes: EU-standard round wall boxes and 86/120 type installation boxes.
• OpenEdge AP access: In pairing mode, the device can be accessed through the SONOFF_1GS_xxxx Wi-Fi network at 192.168.33.1.
• OpenEdge LAN access: After connecting to Wi-Fi, it can be accessed at MINI-1GS.local or through the device's IP address.
• Physical control button: A short press switches the relay, holding for 5 seconds starts pairing and AP mode, and holding for 10 seconds performs a factory reset.
• Switch type selection: The external switch type can be changed by pressing the device button three times.
• Installation: This is a mains-powered built-in device and must be wired in accordance with applicable electrical safety regulations.