Five Practical Home Assistant Automations
Five automations that are genuinely useful, easy to set up, and don't need advanced hardware — with the triggers and conditions spelled out.
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Home Assistant can do a lot on day one. Here are five simple automations that are easy to set up, genuinely useful, and won’t require advanced hardware. I’ll note where Zigbee/Z‑Wave help, but Wi‑Fi devices work great too.
Every one of these works with nothing more than a hub and a couple of smart plugs. If you’re starting from zero, read Getting Started with Home Assistant first.
Enough hardware for all five — add a Zigbee dongle later, when you want battery sensors
- Home Assistant Green — The shortest path to a working setup — plug in Ethernet and power and you're running tonight. Skip it if you actually want to learn what's underneath, or if you plan to run other services on the same box.
- Kasa Smart Plug — The easiest first automation — no radio required, works over Wi-Fi, and integrates locally. Great for lamps, chargers, and anything you want to cut power to on a schedule.
1) Sunset Lighting
Turn on selected lights at sunset and turn them off at bedtime.
- Trigger: Sun →
sunset - Conditions: Only if someone is home
- Actions: Turn on living room lights; turn off at 11:30 PM
If you’re starting with Wi‑Fi plugs for lamps, these are reliable: Kasa Smart Plug
2) Motion‑Activated Hall Lights
Light up a hallway when motion is detected, then auto‑off after a short delay.
- Trigger: Motion sensor →
on - Conditions: Only after sunset
- Actions: Turn on light, wait 2 minutes, turn off
This is the first automation that genuinely needs a radio. Battery-powered motion sensors are almost all Zigbee or Z‑Wave — Wi‑Fi versions exist, but they either run on mains power or eat batteries. A Zigbee dongle is the cheaper entry point and covers the widest range of sensors:
One gotcha that costs people an evening: don’t plug the dongle into a USB 3 port, or next to one. USB 3 throws off interference right in Zigbee’s band and you’ll get devices that pair fine and then drop constantly. Use a USB extension cable and move it a foot away from the machine.
3) “Nobody’s Home” Energy Saver
When all tracked devices leave, turn off non‑essential plugs (office gear, lamps).
- Trigger:
person→not_home(all household) - Conditions: None
- Actions: Turn off selected switches/plugs
Start simple with a few plugs; expand as you go: Kasa Smart Plug
4) Washer/Dryer Done Notifications
Get a mobile alert when the machine finishes based on plug power draw.
- Trigger: Smart plug power drops below threshold for N minutes
- Actions: Send mobile notification
This works with many plugs that report energy usage. If your plug doesn’t, you can still estimate with duration.
5) Morning Warm‑Up
Turn on a space heater or coffee machine for a short window when someone wakes up.
- Trigger: Time → 6:30 AM OR first motion in kitchen
- Conditions: Only on weekdays
- Actions: Turn on plug for 20 minutes
Tips for Reliable Automations
- Prefer local integrations (ZHA/Zigbee2MQTT, Z‑Wave JS) for fast, offline‑friendly control.
- Use
conditionsto prevent automations from firing at the wrong time (e.g., daylight). - Start with one room; build confidence before expanding.
- Name automations clearly:
Sunset – Living Room Lamps,Hall – Motion Nightlight.
Recommended Starter Hardware
Nothing exotic. A hub, something to switch, and — once you want motion or contact sensors — a radio.
To run everything above
- Home Assistant Green — The shortest path to a working setup — plug in Ethernet and power and you're running tonight. Skip it if you actually want to learn what's underneath, or if you plan to run other services on the same box.
- Kasa Smart Plug — The easiest first automation — no radio required, works over Wi-Fi, and integrates locally. Great for lamps, chargers, and anything you want to cut power to on a schedule.
- Zigbee 3.0 USB Dongle — Get this first if you're adding radios. Zigbee covers the cheap, plentiful stuff — bulbs, contact and motion sensors, buttons. Use a USB extension so it isn't sitting next to a USB 3 port, which will interfere with it.
Going the DIY route instead? A Raspberry Pi 4 needs a real power supply and, ideally, SSD boot rather than a microSD card:
The DIY build
- Raspberry Pi 4 (4GB) — The tinkerer's choice. More setup work than the Green, but you learn the stack and can run other things alongside. Budget for the power supply and storage below — the board alone isn't enough.
- USB‑C 5V/3A Power Supply — Don't power a Pi from a spare phone charger. Undervolting causes random reboots and filesystem corruption that look like software bugs and waste entire evenings.
- USB 3.0 SSD + Enclosure — Boot from this instead of the microSD. It's the single upgrade that most reduces the odds of losing your setup, and it's noticeably faster.
What to Read Next
- Getting Started with Home Assistant — the full setup walkthrough
- Automations Worth Setting Up First — more ideas once these five are running
- The gear I actually run
Questions or a favorite automation you use? Drop a comment or email me at [email protected].
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