Grouping Accessories in Home Assistant: A Practical Guide

Grouping accessories in Home Assistant lets you combine multiple entities into a single control, simplifying your dashboard and automations. This article explains what grouping is, how to create groups, and how to use them effectively, with practical examples and common pitfalls to avoid.

What Are Groups in Home Assistant?

Groups are a core feature of Home Assistant that allow you to combine multiple entities into one logical unit. For example, you can group all the lights in your living room into a single “Living Room Lights� switch, or group all the sensors in your garden into one “Garden Sensors� entity. Groups can be used in the dashboard, in automations, and in scripts, making your setup cleaner and more manageable.

There are two main types of groups: entity groups (created via YAML or the UI) and assistive groups (like light groups or switch groups) that have special behavior. The most common use is to create a group of lights that can be turned on/off together while still controlling individual brightness and color.

How to Create a Group

You can create a group in two ways: using the Home Assistant UI (for entity groups) or by editing configuration.yaml (for more advanced groups). The UI method is recommended for beginners.

1. Go to Settings → Devices & Services → Entities.
2. Click the “Create� button (or the plus icon) and choose “Group�.
3. Give the group a name (e.g., “Kitchen Lights�).
4. Select the entities you want to include from the list. You can search by device or entity name.
5. Click “Create� to finish.

The new group will appear as a single entity in your dashboard. You can add it to any view like a normal entity.

For more control, you can also define groups in YAML. Here’s an example of a light group in configuration.yaml:

light:
  - platform: group
    name: "Living Room Lights"
    entities:
      - light.living_room_ceiling
      - light.living_room_floor
      - light.living_room_lamp

After saving, restart Home Assistant to apply the changes. This method is useful when you want to group entities from different domains (e.g., lights and switches) or when you need to set specific options like all (to require all entities to be on for the group to be on).

Why Use Groups?

Groups reduce clutter. Instead of seeing 10 individual light entities on your dashboard, you see one. This makes your UI cleaner and easier to navigate, especially on mobile devices. Groups also simplify automations: you can target a group instead of listing every entity, which makes your YAML more readable and easier to maintain.

Another benefit is that groups can be used in scenes and scripts. For example, a “Movie Time� scene can turn off all lights in the living room group, dim the TV backlight, and close the curtains—all with one action.

Group Types and Their Behavior

Home Assistant supports several group types, each with its own behavior:

• Entity groups – The basic group that combines any entities. The state of the group is derived from the states of its members (e.g., if any light is on, the group is on).
• Light groups – Specialized for lights. They allow you to control brightness, color, and temperature as if they were a single light. The group’s state is based on the majority or a specific logic (e.g., all off if all are off).
• Switch groups – Similar to light groups but for switches. They can be used to control multiple switches together.
• Cover groups – For covers (e.g., blinds). You can open/close all covers in the group simultaneously.
• Media player groups – Combine multiple media players into one, allowing you to control them as a single speaker group (e.g., for multi-room audio).

Each group type has its own platform in YAML (e.g., light.group, switch.group). The UI group creation automatically chooses the correct type based on the entities you select.

Grouping for Automations and Scripts

Groups are extremely useful in automations. Instead of writing a long list of entities in an action, you can just reference the group. For example:

automation:
  - alias: "Turn off all lights at bedtime"
    trigger:
      platform: time
      at: "23:00:00"
    action:
      service: light.turn_off
      target:
        entity_id: group.all_lights

This turns off every light in the group. You can also use groups in conditions, e.g., if group.living_room_lights is on.

When using groups in automations, remember that the group’s state is derived from its members. For entity groups, the state is on if any member is on. For light groups, the state is on if any light is on, but the brightness is the average of the lights that are on.

Common Problems and Solutions

Here are a few issues you might encounter when grouping accessories:

• Group not appearing in the dashboard – After creating a group, you may need to refresh the dashboard or restart Home Assistant. Also, ensure the group is added to a view (if you’re using the default Lovelace, you may need to add it manually via the UI editor).
• Group state is incorrect – For entity groups, the state is based on the first entity in the list. If you want the group to be on only when all entities are on, you can set all: true in the YAML configuration.
• Light group brightness is not working – Make sure all lights in the group support brightness. If some are non-dimmable, the group may not behave as expected. You can exclude non-dimmable lights or use a different group type.
• Group not updating in real-time – Sometimes the state of a group may lag behind. This is usually due to the update interval. You can force a refresh by calling homeassistant.update_entity on the group.

If you’re using the UI to create a group and it doesn’t work, try deleting and recreating it. Also, check the logs for any errors related to the group.

Alternatives to Groups

Groups are not the only way to manage multiple entities. Here are some alternatives:

• Areas – Home Assistant has built-in area support. You can assign entities to areas (e.g., “Kitchenâ€�) and then control all entities in an area using services like light.turn_on with area_id. This is more dynamic than static groups.
• Scenes – Scenes capture the desired state of multiple entities at once. You can create a scene that sets specific brightness, colors, and states, and then activate it with one call. Scenes are great for “movieâ€� or “morningâ€� presets.
• Scripts – Scripts can perform a sequence of actions, including turning on/off multiple entities. They are more flexible than groups because they can include delays, conditions, and multiple steps.
• Dashboards with custom cards – You can create a dashboard view with multiple entities displayed together, even if they are not grouped. This is a purely visual alternative.

Each method has its strengths. Groups are best for simple on/off or brightness control of similar devices. Areas are better for spatial organization. Scenes are ideal for complex multi-entity states. Scripts are for sequences.

Frequently Asked Questions

Can I group devices from different brands? Yes, groups can include any entity from any integration, as long as they are of the same domain (e.g., all lights, all switches). You cannot mix lights and switches in a light group, but you can create an entity group that includes both, though it will only show state, not control.

How do I remove a group? To remove a group created via the UI, go to Settings → Devices & Services → Entities, find the group, and delete it. For YAML groups, remove the corresponding block from configuration.yaml and restart.

Why is my light group not showing the correct color? Light groups combine the states of all lights. If the lights have different color capabilities, the group may not display a consistent color. Ensure all lights support the same color modes (e.g., RGB) for best results.

Can I use a group in a condition? Yes, you can use groups in conditions. For example, condition: state
entity_id: group.living_room_lights
state: 'on' will check if any light in the group is on.

Do groups affect performance? Groups are lightweight and generally do not impact performance. However, very large groups (hundreds of entities) might cause slight delays in state updates. Keep groups reasonable in size.

Can I group entities that are in different areas? Yes, groups are independent of areas. You can group lights from different rooms if you want to control them together, but it’s usually more intuitive to group by area.

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