The SONOFF ZBMINI R2 is a Zigbee version of the popular compact Sonoff brand relay switch that can be installed in wall switch boxes. This small, compact smart relay module, released at the end of 2024, communicates using the Zigbee 3.0 protocol and can be integrated behind a wall switch. It is the ideal choice for those who want to modernise their home lighting or make other household electrical appliances switchable remotely. With this device, any circuit can be integrated into a smart home system that supports Zigbee 3.0 communication. "The Zigbee MINI Extreme not only allows remote control, but also complements traditional switches with smart features that offer convenience and flexibility. Its compact design makes it compatible with many types of switches, so replacing old, traditional switches is often unnecessary. The ZBMINI R2 requires a Zigbee-compatible gateway, bridge or coordinator for remote control and smart home integration.

What is Zigbee?
Zigbee is a protocol specifically designed for smart home/IoT applications, designed for efficient communication between such devices. Unlike Wi-Fi devices, which connect directly to a router, Zigbee devices require a Zigbee-to-Wi-Fi gateway (also known as a bridge or coordinator) to allow remote control and connection to the internet. One of the advantages of Zigbee solutions is that they offload traffic from the Wi-Fi network, as only one connects to the router "Wi-Fi device (the Zigbee gateway) and all other devices communicate via the Zigbee protocol, freeing up the router's IP addresses.

"Zigbee technology also supports mesh networks where Zigbee devices powered by 230 V (e.g, "Sonoff ZBMINI and Sonoff Basic ZBR3 relays) can transmit data from other Zigbee toevents to the Zigbee gateway if they are out of its direct range, thus extending the network reach. .

Another advantage of the Zigbee protocol is its low power consumption, which is much lower than Wi-Fi. This makes the Zigbee protocol particularly popular for battery-powered sensors, which can operate for many years on a single battery due to their low power requirements. "Zigbee only handles small packets of data, which is usually sufficient as it is mainly used for control commands and status updates. The Zigbee protocol is an industry standard, so fully standard Zigbee devices should theoretically be compatible with standard devices from any manufacturer.

Technical specifications
The ZBMINI R2 is a 230 V relay switch that connects to the mains on one side (voltage and neutral) and can control a 230 V load on the output side, allowing the circuit to be closed and opened. Can be mounted behind rosettes or light switches (maximum load: 10A). An external switch can also be connected to its input, allowing both the wall switch and the Zigbee app to control the device when mounted behind wall switches. With an internet connection and using the SmartThings app on an iOS or Android phone, or by connecting to the Sonoff Zigbee Bridge Pro via the eWeLink app, the relay can be controlled remotely.

Compatibility and integration
The ZBMINI R2 is compatible with several Sonoff Zigbee-Wi-Fi gateways, including Sonoff Zigbee Bridge Pro, Sonoff Zigbee Bridge Ultra and NSPanel Pro. Once connected to one of these, the ZBMINI R2 can be controlled using the familiar eWeLink platform and app. Common eWeLink features include current on/off status, manual on/off and timers (graph, countdown timer, cycle control), but the pulse switch (inches) function is not available. It is also compatible with Sonoff iHost and SmartThings Hub and can be controlled using the SmartThings app for iOS and Android. "The SmartThings app offers features such as remote ON/OFF control and scheduled ON/OFF, among others.

The ZBMINI R2 also works with the Amazon Alexa platform (compatible with devices such as the ZE39KL Echo Plus, Echo Studio, DW84JL 2nd Gen Echo Show, and L9D29R 2nd Gen Echo Plus) and can be paired with Alexa voice control by saying "Alexa, locate the device. "

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