The Sonoff MINIR2 is a smart retrofit switch designed to fit inside existing switch boxes, enabling wireless control of lights while retaining manual physical switch operation. It connects via WiFi and provides two-way control—allowing both app-based remote operation and traditional physical switches to work seamlessly together. [1] The device is part of Sonoff’s DIY smart switch line, focused on in-wall retrofits that maintain the look of standard switches while adding smart home capabilities. [2]
Key Features
Two-way control maintains manual physical switch operation while enabling wireless app control [1]
Open Device REST API for LAN-based home automation integration without cloud dependency [1]
Smart scenes automation for triggering actions based on device states [1]
Voice control compatibility (works with major voice assistants through eWeLink) [1]
Scheduling and family sharing capabilities through eWeLink app [1]
Local control via LAN with priority over cloud connections when available [3]
Compatible with Home Assistant through eWeLink addon or SonoffLAN custom integration [4][5]
Specs At A Glance
Vendor
Sonoff (by CoolKit Technologies) [1][2]
Model
MINIR2
Model Number
6920075776195 [1]
Protocol
WiFi (2.4GHz, REST API for local control) [1]
Power
In-wall installation, standard switch box voltage [1]
Connectivity
WiFi with LAN-based REST API, cloud fallback via eWeLink [1][3]
Local Control
Yes—supports local LAN control via open REST API [1]
Home Assistant Integration
Official eWeLink addon or custom SonoffLAN component [3][4]
Alternative: Flash with Tasmota or ESPHome firmware for native MQTT integration [4]
Local Control Priority: The eWeLink integration prioritizes LAN control when devices are on the local network, with automatic cloud fallback [3]
DIY Mode Support: MINIR2 supports DIY mode with mDNS discovery for direct LAN access via REST API [1][3]
Setup Requirements: eWeLink account required for cloud-connected features; addon installation requires Home Assistant OS with Supervisor [3]
Known Limitation: Devices connected through REST API/WebSocket appear as entities rather than full devices in HA, which may limit some automation capabilities [3]
REST API documentation mentioned but direct link not available on product page [1]
DIY mode supports mDNS discovery for local API access [3]
Practical Notes / Gotchas
Supervisor Required: The official eWeLink addon requires Home Assistant OS with Supervisor—won’t work with Container or Core installations [3]
Entity vs Device Limitation: REST API connected devices appear as entities rather than full devices in HA, requiring Advanced Mode and scene workarounds for some automations [3]
Firmware Options: Consider flashing Tasmota or ESPHome firmware for fuller local control and native MQTT integration if you prefer to avoid eWeLink cloud services [4]
Two-Way Switch Wiring: The MINIR2 is designed for two-way switch setups—verify your existing wiring supports this configuration before purchasing
WiFi Only: This model is WiFi-based only (not Zigbee or Z-Wave)—ensure adequate 2.4GHz WiFi coverage in switch box locations [1]
Stock Availability: Product was listed as out of stock at time of documentation—check alternative Sonoff switch models or authorized resellers [1]
