CONTROL UNIT SHELLY I4 GEN3

Shelly I4 and I4 DC Gen3 are input modules that enable customers to turn ordinary switches, buttons, motion sensors, and similar devices into smart devices. Shelly I4 Gen3 has four inputs, each with four functions (1, 2, and 3 short presses plus a long press), allowing manual sending of wireless commands to activate or deactivate triggers, send webhooks, or execute complex scenarios. The devices can control other Shelly relays, dimmers, sensors, or HTTP- and MQTT-controlled devices. Shelly I4 Gen3 is easy to install and control via the Shelly Smart Control app or your preferred smart home system. Shelly devices operate 100% locally and require only a local network to function. Shelly can be used independently in the Shelly Smart Control app or with over 200 partner systems such as Amazon Alexa, Home Assistant, Samsung, Athom Homey, and many others. Features

Shelly I4 and I4 DC Gen3 offer a wide range of applications. Shelly I4 Gen3 can be powered by 110-230 VAC, and Shelly I4 DC Gen3 can be powered by 5-24 VDC.

Shelly I4 can be used for example:

• Converting ordinary switches into smart devices
• Converting motion sensors into smart devices
• Converting relay-output smoke alarms into smart devices

Connections

Shelly I4 Gen3 can be connected to the internet or a local network via 2.4 GHz Wi-Fi. Additionally, the device has built-in Bluetooth, like other Pro and Plus devices, allowing it to serve as a bridge for Shelly Bluetooth battery-powered Bluetooth devices.

All Shelly devices operate locally without requiring a connection to Shelly Cloud, but activating it is recommended to enhance data storage and functionality. Devices can also communicate via MQTT, HTTP, and WebSocket. All support TLS.

Works locally – no gateway required

All Shelly Wi-Fi devices have a built-in web server, meaning you get numerous functions that always work, regardless of whether you have an active internet connection or not. No gateway is required, so you can start with just one Shelly device. Thanks to the built-in web server, Shelly has built-in memory and remembers sunrise, sunset, schedules, etc., even if the network goes down. Relays and dimmers function like regular push-button relays, so you can use them with ordinary switches—even without internet. All input and output connections are fully programmable and require only a local Wi-Fi network to communicate between devices. However, we recommend maintaining an active internet connection as it unlocks additional features.

Hardware

The device features third-generation hardware, including a powerful ESP-Shelly-C38F CPU with 8 MB flash memory. This makes Shelly I4 Gen3

futuristic-proof and enables the use of scripting functions and virtual devices for advanced and user-specific operations.

This product description is an automated translation of the original Finnish description.