Shelly PLUS Uni - Universal WiFi Smart Module

Shelly PLUS Uni is an innovation from European manufacturer 2024, one of the world's smallest smart retrofit devices: like Shelly PLUS i4, it can detect the switching signal of traditional physical switches or other relays, and like the Shelly Temperature Adapter, it can also be connected to digital thermometers. Like other Shelly devices, the GEN2 is a smart device equipped with Wi-Fi + Bluetooth and is compatible with other Shelly-supported systems via the Shelly Cloud app and cloud service.
The Shelly PLUS UNI is a truly versatile, universal little device because:

The drill is particularly versatile in terms of power supply, as Shelly Uni operates on 5 V DC, 9 V-28 V DC and 8 V-24 V AC. It is also equipped with two digital inputs IN1 and IN2, which can be used as switch inputs when connected to GND, and the COUNT IN input makes it suitable for counting contacts.
The output side is also universal: switching on both potential-free outputs can be controlled by the input side, but can also be controlled independently, as they can switch up to 24V AC and 36V DC, both with a maximum of 250 mA.
It also features a universal ADC, i.e. analogue-to-digital converter, which can drive 0-15V or 0-30V DC.
You can connect up to 3 DS18B20 waterproof stick thermometers OR 1 DHT22 humidity sensor, which can be used to switch output side, local or cloud Scene/Smart Controls.

Although it does not have its own external protective cover, it is protected from high humidity, dust and the risk of short-circuiting by a transparent insulating cover.
It's truly versatile: for example, you can connect a bell button to its digital inputs and use the Scene (Smart Control) function of the Shelly app to send notifications or emails to your phone.

To be controlled at the output, it can also be plugged into and controlled by common household appliances.
But because it can be linked to digital thermometers and humidity sensors, it offers one of the cheapest and simplest ways to process sensor data. And the dual ADC can be connected to virtually any analogue sensor (e.g. water level sensor) and even used to monitor tank filling.
The two potential-free outputs can be connected to the pull-up coils of high-performance relays, allowing higher power switching so that they can be retrofitted to most common household or other appliances.
Type: you can also automate your motorhome: sockets, lights, door status, water leaks, water and air temperature measurement, etc.

Supported modes:


Cloud mode: then you can connect to the free Shelly Cloud, through which you can control and configure your devices from the Shelly Cloud smartphone app (available for iOS and Android) and from https://my.shelly.cloud/; or
select LAN/local trunk mode; in this case, you can only control devices from devices connected to the local network; or
operate the device (instead of WiFi client mode) in WiFi hotspot mode (e.g. if there is no permanent WiFi network at the installation site); in this case, you can connect a mobile phone or laptop in the vicinity of the device directly to the WiFi AC network emitted by the device, and manage the device or read the stored consumption data while the connection is established.


In cloud mode, Shelly devices can also control each other (under complex conditions) using the Shelly cloud scene (e.g. a Shelly relay placed behind a light switch can turn on/off another Shelly relay behind the socket, independent of the cloud point, and turn it on/off, i.e. devices can control each other wirelessly via WiFi and the factory cloud simply by following the rules we define.)
It is also possible to directly control each other with HTTP commands (DDD, Direct Device-to-Device) (even without using the Shelly Cloud, even in LAN mode) when using fixed IP addresses, i.e. Shelly devices can also switch off/on each other in the local network in case of a disconnection from the external internet (or a firewall disablement), using so-called actions that can be configured in the Shelly app.
The Shelly PLUS Uni smart management is also available free of charge via the manufacturer's smartphone app and its own Cloud service.

Overview of connections:


Integrations:


With Shelly software already factory-installed, it is one of the easiest smart devices on the market to integrate. As is common with Shelly devices, the factory firmware already supports a range of integrations including REST API, MQTT, CoAP, Alexa, Google Home and Samsung's Smart Things platform, meaning it can easily integrate with almost any major automation platform.
In addition, the factory firmware supports a range of other open source and non-open source systems:

MQTT
HomeSeer
ioBroker
Home Assistant
openHAB
Domoticz
SYMCAN
nymea
Hubitat
Hoobs
REST API