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Home Assistant lets you create smart-home automations without writing YAML by using its visual editor. You choose When a trigger occurs, optionally add And if conditions, then specify Then do actions. A reliable first project is a small automation—such as turning on a light when an integrated motion sensor detects movement—followed by a real-world test.
This guide explains the editor, prerequisites, blueprints, hardware choices, restart behavior, compatibility limits, and troubleshooting. The no-code workflow is powerful, but the options shown depend on your integrations; some advanced settings remain YAML-only.
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A Home Assistant automation waits for an event, checks any conditions you set, and runs its actions when those conditions pass. The visual editor turns that logic into selectable fields instead of requiring a YAML file. Home Assistant describes the editor as a guided way to choose a trigger, optional conditions, and actions.
Open the editor at Settings > Automations & scenes > Create automation > Create new automation. A new automation is organized into three areas:
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- When: the trigger that starts the automation, such as a motion event or a sunset event when your integration exposes it.
- And if: optional conditions that are checked after the trigger fires. They narrow when the automation is allowed to continue.
- Then do: the actions Home Assistant performs, such as controlling a light or sending a notification when that service is available.
The distinction between a trigger and a condition is important: a condition does not start an automation. It only decides whether a triggered automation proceeds. The available trigger, condition, and action types vary by device, entity, and integration.
What do you need before building one?
You need an always-on Home Assistant installation and an integration for every device or service involved. The editor cannot create a control that the integration does not expose.
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- An always-on host: Home Assistant can run on a suitable Raspberry Pi, mini PC, NUC, virtual machine, or another supported computer. Home Assistant Green is the official plug-and-play option with the software preinstalled, but it is not mandatory. The hardware guidance lists alternatives.
- Integrated devices: Add the motion sensor, light, switch, phone service, or other target before opening the automation editor. Check which entities and capabilities the integration provides.
- Stable power and networking: Automations only run while the Home Assistant host is operating. A battery-powered sensor may also have its own reporting delay or sleep behavior, depending on its integration.
- A clear desired outcome: Define the event, any limits such as time or brightness, and the action. Starting with one trigger and one action makes errors easier to isolate.
Home Assistant itself is free and open source, with no subscription required to build automations. Hardware and optional cloud services are separate costs; see the official free-software FAQ for that distinction.
How do you create your first automation in the visual editor?
Use the following sequence for a basic event-driven automation. The labels below match the current visual-editor workflow, although individual choices depend on your connected integrations.
- Open a new automation. Go to Settings > Automations & scenes, select Create automation, and choose Create new automation. The visual editor opens by default. If Home Assistant presents a choice between a new automation and a blueprint, select the new-automation option for a blank design.
- Name it for its outcome. Use a name that tells you what should happen, such as Hall light on with motion after sunset. A descriptive name is easier to find when you later disable or revise it.
- Add the trigger. In When, choose Add trigger. Select a trigger type and then the relevant device, entity, or group. For example, choose a motion-related trigger for a motion sensor, or a sun-related trigger if your installation exposes sunset events. Do not assume that every sensor offers every trigger type; the integration determines the list.
- Add conditions only when they add a useful boundary. In And if, select Add condition and choose an available time, sun, state, numeric, or other condition. A motion trigger might be limited to nighttime, or a temperature response might be limited to a particular state. Multiple conditions can be organized with AND or OR blocks, so decide whether all requirements or just one of several alternatives must be true.
- Add the action. In Then do, choose Add action. Select the service and target that your integration provides—for example, a light entity, an area, or a notification service. Review the selected target carefully: an area, device, or label can include more entities than you intended.
- Save the automation. Give it a final name and save. Saving makes the automation available for Home Assistant to run; it does not prove that the sensor reports the event or that the target responds.
- Trigger it in the real world. Create the event you selected and watch the intended device or notification. If nothing happens, verify that the automation is enabled, the trigger entity changed in the way you expected, and the target is reachable. The editor supports undo and redo, and you can temporarily disable an individual row while refining a design.
For the official editor sequence and current labels, see Home Assistant’s automation editor documentation.
Example: turn on a light after motion is detected at night
This example assumes your installation exposes a motion trigger, a light target, and a way to express nighttime—such as a sun event or a time condition.
- In When, add the motion sensor’s motion-detected trigger.
- In And if, add a nighttime condition. Choose the condition that your integration offers rather than copying a field that is absent from your editor.
- In Then do, add the light action and select the intended light or area.
- Save it, then walk past the sensor after dark. If the light does not respond, check whether the sensor reports a state change and whether your selected area contains the correct light entity.
This pattern is deliberately small. Once it works, you can add another action, a wait, or a choice block and test again instead of debugging a large sequence all at once.
What happens after a trigger fires?
Home Assistant evaluates an automation in order: a trigger starts it, conditions are checked, and actions run only when the conditions pass. A condition is therefore a gate, not a second way to start the automation.
The editor can represent more than one action and supports flow blocks such as waits and choices. A wait pauses that run before later actions; a choice lets the automation select a path based on additional criteria. Keep each branch understandable, because a failure in an earlier required action can affect the steps that follow.
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By default, an action failure stops the automation. The editor’s Continue on error option is useful only when a failure is acceptable and later actions can still make sense. It does not repair configuration errors such as a broken template. Treat it as an explicit trade-off rather than a general error-suppression switch.
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How should you test and troubleshoot a visual automation?
Test the complete trigger-to-outcome path, not just the saved form. Use the real sensor event or time condition, then verify the exact target entity and the resulting device state.
- Confirm the automation is enabled. A disabled automation will not respond even when its trigger occurs.
- Confirm the trigger changed. Look at the selected entity or device and make sure it reports the event your trigger expects. “Motion detected,” for example, must be an event or state change that the integration exposes.
- Check conditions one at a time. Temporarily remove or disable a condition to determine whether the trigger works independently. Re-enable it after the test.
- Inspect the target selection. If you chose an area, device, or label, check which entities it contains. An unexpected entity can make an automation appear inconsistent.
- Test the action separately where practical. Use the same target and service in a simple test, then return to the full automation. This separates a device or integration problem from an automation-logic problem.
- Use undo, redo, and temporary row disabling. Make one change at a time so you can identify which edit changed the behavior.
- Retest after every structural change. Especially retest after adding waits, choices, multiple conditions, or a blueprint update.
Feature names and editor controls can change between Home Assistant releases. If your screen differs, use the current automation documentation and the labels shown by your installed integrations rather than forcing an older example.
When should you use a blueprint instead of starting from scratch?
Use a blueprint when a reusable automation pattern already matches your goal and you want configurable inputs rather than a blank design. Build manually when you need a one-off sequence or want complete ownership of every trigger, condition, and action.
A blueprint is a template supplied by Home Assistant or another source. The usual process is:
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- Import a blueprint from a source you trust.
- Select the blueprint and fill in its inputs, such as the sensor, light, or notification target.
- Review the resulting behavior, then save the automation.
Read the blueprint’s description and inputs before relying on it. A blueprint can hide complexity behind its configuration fields, and its behavior depends on the integrations named by the author.
If you choose Take control, Home Assistant converts that blueprint-based automation into a regular automation. It cannot be converted back into a blueprint automation. Re-importing a community blueprint can overwrite the blueprint you already have, and an incompatible update can break automations that depend on it. Keep a record of important settings and update only after reviewing the changed inputs and behavior. Home Assistant documents the workflow in Using automation blueprints.
What is the difference between an automation, script, scene, helper, and blueprint?
Choose the tool based on what starts the work and what kind of state you need to save. Home Assistant’s own comparison is useful because these tools overlap in the interface but solve different problems.
| Tool | Best fit | What starts it | What it stores or does |
|---|---|---|---|
| Automation | Responding to an event | A trigger such as a sensor event or time event | Checks conditions and runs actions |
| Script | A reusable sequence you start manually or call from other logic | A user, dashboard, or another automation | Saved actions without its own trigger |
| Scene | Applying a group of preferred device states | A user, script, or automation | Saved states for several devices |
| Helper | Storing a value or control state | Manual input or another entity/action | Values or settings that other logic can read |
| Blueprint | Reusing a configurable automation design | The triggers defined by the resulting automation | A template with inputs, not a separate event type |
For example, use an automation to notice a door event, a script to run the same multi-step response from several automations, a scene to apply a saved lighting arrangement, and a helper to hold a mode or value that conditions can check. Home Assistant explains these distinctions in Which tool to use: automation, script, scene, blueprint, or helper.
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What hardware runs Home Assistant?
Home Assistant Green is a convenient preinstalled host, but buying it is not required. If you already have suitable hardware, running Home Assistant there can avoid another box and lets you choose the installation method that fits your setup.
The official Green product page lists a quad-core 1.8 GHz processor, 4 GB of RAM, 32 GB of eMMC storage, and Ethernet. Its recommended manufacturer price is $199 USD or €179, with regional and retailer differences; those figures were checked against the official page in November 2026. Green is a host for the software, not a guarantee that every device in your home is compatible.
Home Assistant’s official product information says Green supports more than 1,000 built-in integrations and hundreds of thousands of smart devices and online services. That is a vendor-published, undated product-page figure, not an independent adoption or performance study. Check the live Home Assistant Green page for current availability and regional details.
An optional Home Assistant Connect ZBT-2 accessory can be relevant when you need Zigbee, Thread, or Matter support. It is not a prerequisite for the visual editor and is not required for every Home Assistant device. Confirm protocol and hardware compatibility before purchasing an adapter.
How do local and cloud integrations affect an automation?
The editor can only use capabilities exposed by the integration, and the integration’s connection model affects reliability. A device may be controllable locally, dependent on a vendor cloud, or expose a mixture of local and cloud features.
Before designing around a critical action, open the integration and verify:
- Which trigger types the device actually provides.
- Which entities can be used as conditions.
- Which services or targets can be controlled.
- Whether the relevant operation requires an internet connection or can run on your local network.
- Whether the device reports state changes quickly enough for your intended response.
Do not generalize from one device brand or model to another. Two products that look similar in a store can expose different entities, triggers, or local behavior in Home Assistant. The official hardware FAQ and integration documentation are better compatibility references than the device category alone.
What can the no-code editor not do?
The visual editor covers the common trigger-condition-action workflow, but it does not make every Home Assistant feature no-code. Home Assistant also provides YAML editing and documents options that are available only in YAML or are easier to express there.
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You may need YAML when an advanced option is not represented by the editor, when a complex template requires precise syntax, or when you need a configuration pattern the current UI does not expose. Start visually when possible, then move to YAML only when the editor cannot express the required behavior. Keep a backup of a working configuration before making advanced changes.
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Moving to YAML also changes how you troubleshoot: a typo or invalid template is a configuration problem, not something the editor’s Continue on error switch can solve. Validate each change and return to the visual editor when it provides all the controls you need.
How do you make an automation reliable across restarts?
Design long-running behavior with Home Assistant’s restart behavior in mind. A delay inside an automation stops when Home Assistant restarts, so it is not a durable timer for an action that must survive a reboot.
For a long timer that should restore after a restart, use a Timer helper with restore enabled, then trigger follow-up behavior from the timer’s finished event. There is an important limitation: if the timer expires while Home Assistant is powered off, its finished trigger does not fire when Home Assistant starts again. Decide what the system should do at startup rather than assuming a missed event will be replayed.
For short, noncritical waits—such as pausing briefly before a second light action—a delay may be adequate. For reminders, occupancy periods, or anything safety-related, model the state explicitly with a helper or timer and include a startup check.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Which automation patterns are easiest to build first?
Start with patterns that have one clear trigger and one observable result. They teach the editor’s structure without requiring complicated templates.
- Motion to light: motion trigger, optional nighttime condition, light action. Add a wait or turn-off action only after the basic response works.
- Sun event to scene: sunset trigger, optional presence or occupancy condition, scene action. The exact sun entities and actions depend on your installation.
- Sensor threshold to notification: a numeric or state trigger, a condition that prevents repeated alerts when available, and a notification action supported by your configured service.
- Mode-based control: a helper stores a mode such as quiet or away, a sensor event triggers the automation, and a condition checks the helper before acting.
For each pattern, write down the expected trigger, the condition that should block it, and the action that proves it ran. Then test both paths: the event when it should act and the same event when a condition should prevent action.
How should you maintain a growing automation collection?
Use names that describe the event and result, keep one purpose per automation where practical, and remove experiments that you no longer need. A small collection is easier to understand than a single automation containing every behavior in a room.
Review targets after adding or renaming devices. Areas, devices, and labels can change membership, so an automation that targets a group should be checked whenever the room or device arrangement changes. Disable an automation temporarily while working on hardware or network changes, then re-enable it and perform a real trigger test.
Blueprints deserve an additional maintenance step: record the source and version you rely on, read update notes, and recheck inputs after an update. If an update is incompatible, taking control creates a regular automation, but that conversion is one-way.
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What is the simplest decision process for your next automation?
Use this checklist before opening the editor:
- Is the event available? Confirm that the integration exposes the trigger you want.
- Is a blueprint a good match? If a trusted template covers the pattern, compare its inputs and behavior with your goal.
- What must block the action? Add only conditions that represent a real safety, comfort, or privacy requirement.
- What is the smallest observable action? Start with one light, switch, scene, or notification.
- Could a restart interrupt it? Replace a durable delay with a restored Timer helper and startup logic when necessary.
- Is the dependency local or cloud-based? Avoid assuming the same behavior during an internet outage.
- Can you test both allowed and blocked paths? If not, simplify the design until you can verify it.
That process keeps no-code automation approachable while leaving room to add waits, choices, additional actions, or YAML only when the requirement genuinely calls for them.
Frequently asked questions
Can Home Assistant automations run when the internet is down?
They can when the host and the relevant device integration continue working locally. An action or trigger that depends on a vendor cloud may stop working during an outage even though Home Assistant itself is still running. Check the integration’s documented connection method before using it for critical control.
Do I need a Zigbee or Thread adapter to use the visual editor?
No. The editor works with whatever integrations and devices your installation already provides. A Connect ZBT-2 is an optional way to add Zigbee, Thread, or Matter support; it is not required for Wi-Fi devices, existing integrations, or the no-code workflow itself.
What happens to a timer that expires while Home Assistant is turned off?
A restored Timer helper can recover its state after a restart, but a timer that reaches its end while Home Assistant is off does not fire its finished trigger when the system starts again. Add startup logic if missing that event would leave a light, lock, notification, or other device in the wrong state.
Can I keep a blueprint relationship after taking control?
No. Taking control converts the automation into a regular automation, and Home Assistant cannot convert it back into a blueprint automation. Preserve the original blueprint source separately if you may want to recreate the relationship later.
Frequently Asked Questions
Can Home Assistant automations run when the internet is down?
They can when the host and the relevant device integration continue working locally. An action or trigger that depends on a vendor cloud may stop working during an outage even though Home Assistant itself is still running. Check the integration’s documented connection method before using it for critical control.
Do I need a Zigbee or Thread adapter to use the visual editor?
No. The editor works with whatever integrations and devices your installation already provides. A Connect ZBT-2 is an optional way to add Zigbee, Thread, or Matter support; it is not required for Wi-Fi devices, existing integrations, or the no-code workflow itself.
What happens to a timer that expires while Home Assistant is turned off?
A restored Timer helper can recover its state after a restart, but a timer that reaches its end while Home Assistant is off does not fire its finished trigger when the system starts again. Add startup logic if missing that event would leave a light, lock, notification, or other device in the wrong state.
Can I keep a blueprint relationship after taking control?
No. Taking control converts the automation into a regular automation, and Home Assistant cannot convert it back into a blueprint automation. Preserve the original blueprint source separately if you may want to recreate the relationship later.
