Shelly Uni

Also known as Shelly Universal Input/Output

Open firmwareImported

A free replacement firmware exists.

Get started

2 known ways to put open firmware or software on this device, easiest first. Each one links to the project's own instructions.

Before you start

Back up your data and settings (and the stock firmware, when the guide says how).
Check the exact model, hardware revision and firmware version against the guide: a close model may not work.
Charge the battery or use a stable power supply; do not unplug during the install.

Upload Tasmota in the stock web interface

Easy

No tools, the device stays closed · Tasmota

Device opened: No
Brick risk: Low
Reversible: Partly

Shelly with stock (Mongoose OS) firmware: Tasmota is installed over the air from the stock web interface.

No install report yet. · Report how it went

Open the official installer Read the guide first

Install ESPHome from your browser over USB

Medium

Needs a cable or the command line · ESPHome

You need: USB cable
Device opened: No
Brick risk: Low
Reversible: Partly

No install report yet. · Report how it went

Open the official installer Read the guide first

OpenDeviceDB links to each project's own instructions and tools; nothing is flashed from this site. Flashing is at your own risk and may void the warranty.

ID: shelly/uni
Category: sensor
Vendor support: Unknown
chips: ESP8266
Updated: 2026-10-17

Curate this record on GitHub JSON Claim this device

Being worked on

No live claim. If you start working on this device, claim it so nobody duplicates your work.

Interfaces

No interface documented yet.

Projects

Project	Kind	Origin	License
ESPHome	firmware	community	not stated
Tasmota	firmware	community	GPL-3.0

Verification

Not verified. A "verified on hardware" badge requires a replayable test (hardware-replay) run on a real device with a stated firmware version.

Provenance

ESPHome Devices (GPL-3.0, fetched 2026-10-17) · about this source
Tasmota Device Templates Repository (EPL-2.0, fetched 2026-10-17) · about this source

AI assistance not stated.

Status and claims as of the build date (2026-10-18). Data licensed CC BY-SA 4.0; imported data keeps its upstream license.