Arm alarm home

The Arm alarm home action arms your alarm control panel in home mode. This is perfect for when you’re relaxing inside but still want the perimeter secured. Doors and windows stay monitored while interior motion sensors stay quiet, so you can move around freely.

This action works with any alarm control panel entityAn entity represents a sensor, actor, or function in Home Assistant. Entities are used to monitor physical properties or to control other entities. An entity is usually part of a device or a service. [Learn more] in Home Assistant that supports home mode. If the alarm is already armed in home mode, calling the action does nothing.

Using this action from the user interface

If you prefer building automations and scripts visually, Home Assistant walks you through this action step by step. You pick what to target, tweak a few options, and save. No YAML knowledge required.

To arm an alarm in home mode from an automation or a script:

1. Go to Settings > Automations & scenes.
2. Open an existing automation or script, or select Create to start a new one.
3. If you’re setting up a new automation, add a trigger in the When section. Scripts don’t need a trigger. They run when something else calls them.
4. In the Then do section, select Add action.
5. Select what you want to control. Under By target (see Targets), pick the area your alarm panel is in (like your hallway or entryway). You can also select a floor, a device, a specific entity, or a label.
6. From the actions shown for that target, select Arm alarm home.
7. Optional: enter the Code if your alarm panel requires one.
8. Select Save.

Options in the UI

Using this action in YAML

If you work directly in YAML, or you want to know exactly what Home Assistant does under the hood, this section has the technical reference. It lists the field names you use in YAML, their types, and which ones are required.

In YAML, refer to this action as alarm_control_panel.alarm_arm_home. A basic example looks like this:

action: alarm_control_panel.alarm_arm_home
target:
  entity_id: alarm_control_panel.home_alarm

This arms alarm_control_panel.home_alarm in home mode without a code.

If your alarm panel requires a code, include it in the data section:

action: alarm_control_panel.alarm_arm_home
target:
  entity_id: alarm_control_panel.home_alarm
data:
  code: "1234"

Options in YAML

Targets of the action

This action requires a target. The target is the object of the action. You can point the action at a single entityAn entity represents a sensor, actor, or function in Home Assistant. Entities are used to monitor physical properties or to control other entities. An entity is usually part of a device or a service. [Learn more], a device, an area, a floor, or a label, and Home Assistant will run the action on every matching alarm_control_panel entity behind that target.

• Entity: one specific alarm_control_panel entity, such as alarm_control_panel.living_room.
• Device: every alarm_control_panel entity that belongs to a device.
• Area: every alarm_control_panel entity in a room or area.
• Floor: every alarm_control_panel entity on a floor.
• Label: every alarm_control_panel entity that shares a label.

You can also select different target types in one action. For example, you can add a specific entity and an area as targets in the same action to run the action on both of them at once.

Good to know

• The Arm alarm home action works on any alarm control panel entityAn entity represents a sensor, actor, or function in Home Assistant. Entities are used to monitor physical properties or to control other entities. An entity is usually part of a device or a service. [Learn more] in Home Assistant that supports home mode.
• Home mode typically monitors perimeter sensors (doors and windows) while keeping interior motion sensors inactive. This lets you move around inside without triggering the alarm.
• Whether a code is required depends on your alarm panel and its configuration.
• To arm all zones when leaving the house, use Arm alarm away. To disarm the alarm entirely, use Disarm alarm.

Try it yourself

Ready to test this? Open Developer tools > Actions, search for this action, fill in the fields, and select Perform action. You see what happens on your actual entitiesAn entity represents a sensor, actor, or function in Home Assistant. Entities are used to monitor physical properties or to control other entities. An entity is usually part of a device or a service. [Learn more] without writing a line of YAML.

More examples

Real scenarios where this action shows up in automations and scripts. Copy any example and adapt it to your setup.

Action: arm in home mode from a dashboard

Set up a quick action on your dashboard so you can arm the perimeter with a single tap while you’re lounging on the couch.

• Action: Alarm control panel: Arm alarm home
• Target: Home alarm
• Code: 1234

action: alarm_control_panel.alarm_arm_home
target:
  entity_id: alarm_control_panel.home_alarm
data:
  code: "1234"

Automation: arm the perimeter when you arrive home at night

When you get home after dark, automatically arm the alarm in home mode. Your doors and windows stay protected while you settle in for the evening.

• Trigger: Person: Paulus changes to home
• Condition: Sun is below horizon
• Action: Alarm control panel: Arm alarm home
• Target: Home alarm

alias: "Arm home mode on nighttime arrival"
triggers:
  - trigger: state
    entity_id: person.paulus
    to: home
conditions:
  - condition: sun
    after: sunset
actions:
  - action: alarm_control_panel.alarm_arm_home
    target:
      entity_id: alarm_control_panel.home_alarm
    data:
      code: "1234"

Automation: arm the perimeter every evening

Each evening at 10 o’clock, arm the alarm in home mode so the perimeter is secured while you sleep. Pair this with a night mode automation for even tighter protection later on.

• Trigger: Time: 22:00
• Action: Alarm control panel: Arm alarm home
• Target: Home alarm

alias: "Arm perimeter every evening"
triggers:
  - trigger: time
    at: "22:00:00"
actions:
  - action: alarm_control_panel.alarm_arm_home
    target:
      entity_id: alarm_control_panel.home_alarm
    data:
      code: "1234"

Still stuck?

The Home Assistant community is quick to help: join Discord for real-time chat, post on the community forum with the action you’re calling and what you expected to happen, or share on our subreddit /r/homeassistant.

Related actions

These actions work well alongside this one:

• Disarm alarm: Disarm an alarm control panel. Optionally provide a code if your alarm panel requires one.

• Arm alarm away: Arm an alarm control panel in away mode. Optionally provide a code if your alarm panel requires one.