Home Assistant for Elderly Parents: A Simple, Caring Setup

Home Assistant for elderly parents works best when it stays small and quiet. A few sensors, a few gentle automations, and a phone alert to the family when something looks off. Your parent keeps living their normal life, and nobody has to learn a new gadget.

This guide is for the adult child who wants to help a mom or dad who lives alone. We start with the five things worth automating first, show three ready-to-paste automations, and are honest about what Home Assistant cannot do. Spoiler: it is not a medical alert system, and it should not replace one.

Home Assistant is free software that runs on a small box in the home and connects smart devices so they work together, even when the internet is down.

What you need

You can start with half of this list and add the rest later.

• Home Assistant Green or a Raspberry Pi running Home Assistant OS. This is the small computer that runs everything.
• Zigbee USB coordinator. Zigbee is a low-power wireless standard that most small battery sensors use. The coordinator is the USB stick that lets Home Assistant talk to them.
• Zigbee motion sensors (two or three): hallway, bathroom door, kitchen.
• Zigbee door contact sensor: a two-part magnet sensor that knows when a door is open. One on the fridge, one on the front door.
• Zigbee water leak sensor for under the sink or next to the washing machine.
• Zigbee button, the bigger the better.
• Smart plug with power monitoring for a heater or kettle.
• A few smart bulbs or plug-in night lights on smart plugs for the path to the bathroom.
• An old tablet with a stand, for a simple dashboard.
• Optional: an mmWave presence sensor, which notices a person even when they sit still.

If you have never installed Home Assistant before, our Raspberry Pi install guide walks through it. Home Assistant Green skips that step: plug it in and open it in a browser.

Start with a conversation, not a sensor

Before you buy anything, explain to your parent what you want to set up and why. “I worry when I can’t reach you” lands better than “I’m installing sensors.” Some people love the idea, others feel watched. Both reactions are fair.

A few rules keep this respectful:

• No cameras in private rooms. Motion and door sensors tell you that life is happening without showing anything. They are enough for almost everything in this guide.
• Your parent stays in control. Give them a way to pause alerts, for example when they go away for a weekend or have guests.
• Tell them what triggers an alert. No hidden rules. If the kitchen alert goes to your phone, they should know it exists.
• Give them a normal user account, not an admin one. You can do this under Settings > People. They can use the dashboard, but they cannot break the setup by accident.

The five things to automate first

Each of these is cheap, quiet, and useful from day one. You build them in Settings > Automations & scenes, either with the visual editor or by pasting YAML. YAML is the plain text format Home Assistant uses for settings. To paste it, create a new automation, open the three-dot menu and choose Edit in YAML.

1. Night path lights

Falls often happen on the way to the bathroom at night. A motion sensor in the hallway turns on a dim light, then turns it off a couple of minutes after the movement stops. No switch to find in the dark.

Every device in Home Assistant shows up as one or more entities. An entity is a single thing you can read or control, like binary_sensor.hallway_motion (on when it sees movement) or light.hallway. Replace the names below with your own. You will find them under Settings > Devices & services > Entities.

alias: "Night path light"
description: "Dim hallway light on motion while the sun is down"
mode: restart
triggers:
  - trigger: state
    entity_id: binary_sensor.hallway_motion
    to: "on"
conditions:
  - condition: state
    entity_id: sun.sun
    state: "below_horizon"
actions:
  - action: light.turn_on
    target:
      entity_id: light.hallway
    data:
      brightness_pct: 20
  - wait_for_trigger:
      - trigger: state
        entity_id: binary_sensor.hallway_motion
        to: "off"
        for:
          minutes: 2
    timeout:
      minutes: 15
    continue_on_timeout: true
  - action: light.turn_off
    target:
      entity_id: light.hallway

The sun condition means “between sunset and sunrise”. mode: restart starts the timer over each time new motion is seen, so the light does not switch off while someone is still walking. Keep the brightness low so it does not wake anyone up fully.

2. A gentle “good morning” check

This is the automation most families care about. If there has been no movement in the kitchen and the fridge has not been opened by 10:00, Home Assistant sends a notification to your phone. Most mornings you never hear from it. On the morning you do, you call.

First create a Toggle helper called “Mom away” under Settings > Devices & services > Helpers > Create helper > Toggle. When it is on, the check is skipped. Put it on the tablet dashboard so your parent can switch it on before a trip.

alias: "Morning check: quiet kitchen"
description: "Notify the family if there is no kitchen activity by 10:00"
triggers:
  - trigger: time
    at: "10:00:00"
conditions:
  - condition: state
    entity_id: binary_sensor.kitchen_motion
    state: "off"
    for:
      hours: 4
  - condition: state
    entity_id: binary_sensor.fridge_door
    state: "off"
    for:
      hours: 4
  - condition: state
    entity_id: input_boolean.mom_away
    state: "off"
actions:
  - action: notify.mobile_app_your_phone
    data:
      title: "Quiet morning at Mom's"
      message: "No kitchen movement and the fridge has not been opened since 6:00. Maybe give her a call."

All conditions must be true, so the alert only fires when both the motion sensor and the fridge door have been quiet for four hours. Pick a time that fits your parent’s real routine. If they sleep until 9:30, a 10:00 alert will cry wolf. Watch the history for a week first (Settings > History) and set the time an hour after they usually get up.

One honest limit: if a sensor battery dies, its state becomes “unavailable”, not “off”, and this check stays silent. That is why the battery alert below matters.

3. Water leak alerts

A leak sensor sits on the floor and reports “wet” the moment water touches it. Put one under the kitchen sink and one by the washing machine or water heater. The automation is simple: when the sensor turns on, notify the family and play a sound on a speaker in the home. We cover more ideas, like shutting off a water valve, in our guide to water management and leak detection.

4. Auto-off for the heater or kettle

A smart plug with power monitoring knows how many watts the device is using. Build an automation that triggers when the power stays above a level (for example 500 W) for 60 minutes, then turns the plug off and sends you a message. For a heater you might allow longer. Two safety notes: check that the plug is rated for the device’s power, and never use a plug to switch something that should not be left unattended in the first place, like a stove.

5. Medication reminder with a “taken” button

At 9:00 a smart speaker says “Time for your morning pills.” Your parent presses a Zigbee button next to the pill box, which switches on a Toggle helper called “Pills taken”. If it is still off at 9:45, you get a notification. At midnight another automation turns it back off for the next day.

There is no phone to find. For more reminder ideas, see our post on schedules and reminders in Home Assistant.

A big “call me” button

A Zigbee button on the bedside table or by the armchair is the simplest help request there is. One press sends “Mom pressed the call button” to everyone in the family.

You do not need YAML for this. Go to Settings > Automations & scenes > Create automation, add a trigger, choose Device, pick the button and select the single press action. Then add an action that sends a notification to each family phone. Test it together so your parent knows exactly what happens when they press it, and so they trust that someone will answer.

Fall detection: what Home Assistant can and cannot do

This part needs to be clear. Home Assistant is not a medical alert system. It depends on Wi-Fi, the internet, phone notifications and batteries. Any one of those can fail on the wrong day.

What it can do is notice “no movement where we expect movement”. A regular motion sensor only sees motion. An mmWave presence sensor uses low-power radar to detect a person who is sitting or lying still, so it can tell “someone is in the bathroom and has not moved for 40 minutes” apart from “the room is empty”. That is a useful extra alert, but it cannot tell you that a person fell, and it will sometimes be wrong. Our presence sensor comparison explains the differences between the common models.

For real emergencies, get a certified medical alert device: a pendant or watch with fall detection and a monitored call service. Think of the sensors as a quiet daily check, and the medical alert device as the emergency line.

Getting alerts to the family

Every family member who should get alerts installs the Home Assistant Companion app on their phone and signs in to the parent’s Home Assistant. The app then creates a notify action named after the phone, like notify.mobile_app_dana_phone. Use one action per person in each automation. The mobile app integration docs explain the options, including high priority and critical notifications that can sound even when a phone is on silent.

Keep alerts rare. If the family gets ten messages a day, they stop reading them, and the one that matters gets missed.

A simple dashboard on a tablet

Mount an old tablet in the kitchen and show one dashboard with big tiles: the hallway light, the “away” toggle, the heater plug, and maybe the weather. Create it under Settings > Dashboards > Add dashboard and use large Tile cards with clear names like “Hall light” instead of entity IDs. Fewer buttons is better. Our guide to dashboards and wall panels has layout ideas for touch screens.

Keeping it working

Battery alerts

Most Zigbee sensors report a battery entity. This automation tells you when one drops below 20 percent, so you can bring a spare on your next visit.

alias: "Low battery at Mom's"
description: "Notify when any sensor battery drops below 20 percent"
triggers:
  - trigger: numeric_state
    entity_id:
      - sensor.kitchen_motion_battery
      - sensor.hallway_motion_battery
      - sensor.fridge_door_battery
      - sensor.sink_leak_battery
      - sensor.call_button_battery
    below: 20
actions:
  - action: notify.mobile_app_your_phone
    data:
      title: "Battery low at Mom's"
      message: "{{ trigger.to_state.name }} is at {{ trigger.to_state.state }}%."

The trigger fires once when a battery crosses below 20, not every time it reports. Add every battery sensor you own to the list.

Backups

Turn on automatic backups under Settings > System > Backups, and store a copy somewhere other than the Home Assistant box itself, such as a network drive or Home Assistant Cloud. If the box dies, you can restore everything onto a new one in an afternoon.

Remote access

You will want to fix things from your own home. The simplest option is a Home Assistant Cloud subscription, which gives you secure remote access without opening anything on the router. It also makes the Companion app work away from your parent’s Wi-Fi.

Small things that prevent big problems

• Put the Home Assistant box and the internet router on a small UPS (a battery backup) if power cuts are common.
• Update Home Assistant during your visits, not from a distance on a Friday night.
• Write a one-page note for your parent: what the button does, who gets the alerts, and how to switch on “away”.

Frequently Asked Questions

Is Home Assistant good for elderly people living alone?

Yes, as a quiet helper in the background. Night lights, leak alerts, a help button and a morning activity check work well. It should not replace a certified medical alert device for emergencies.

Can Home Assistant detect a fall?

Not reliably. An mmWave presence sensor can notice that someone has not moved in a room for a long time, which can be a useful extra alert. For real fall detection, use a certified medical alert pendant or watch.

Do I need cameras to keep an eye on an elderly parent?

No. Motion sensors, door contact sensors and smart plugs show that the daily routine is happening without filming anyone. If you add a camera at all, keep it to the front door and only with your parent’s agreement.

Does it still work if the internet goes down?

The local parts keep working: lights, sensors and automations inside the home. Notifications to family phones need the internet, so an outage means alerts are delayed until the connection comes back.