Auto-assign areas to Tasmota devices in Home Assistant (parse from device name)

[MarkAtwood]

The Problem

Tasmota doesn't support suggested_area in MQTT discovery payloads, so Home Assistant can't automatically assign your devices to rooms. You have to manually set the area for every single device in the HA UI.

The Solution

I built a custom integration that parses the area from your device names: MQTT Device Sync

How It Works

Name your Tasmota devices with a delimiter pattern:

• Kitchen / Coffee Maker → Area: Kitchen, Name: Coffee Maker
• Garage - Door Sensor → Area: Garage, Name: Door Sensor

The integration extracts the area and applies it to the HA device registry automatically.

Features

• Parse area from device name using configurable delimiters (default: / and -)
• Match existing areas - "Laundry Motion" matches your "Laundry" area automatically
• Auto-creates missing areas
• Works with Tasmota's MQTT discovery format

Installation

Available via HACS (pending approval) or manual install. Copy custom_components/mqtt_device_sync to your HA config directory.

Configuration

Set your DeviceName in Tasmota with the pattern, then in the HA integration options:

• Enable "Parse area from name"
• Configure your preferred delimiters

No more manually assigning areas to dozens of Tasmota devices!

[arendst]

I love it! Finally a workaround that doesn't need a change in Tasmota ;-)