Automation22

I let a 40-line Python script reshuffle my whole home-automation config — but only because a second script proved it didn't lose a single automation along the way.

After every Home Assistant restart my KNX thermostats fell to 'standby' and stopped heating. Here is the homeassistant-start automation — with the crucial 30-second delay and a choose block — that re-initialises every thermostat to the correct mode.

Making KNX motion sensors drive lights that feel like the room is paying attention — the real trick is one extra group address, not a cleverer trigger.

A reproducible Home Assistant automation: a KNX window contact switches that room's thermostat to building_protection (frost guard) when it opens and back to comfort when it closes — with a 5-second debounce that stops the false triggers most tutorials ignore.

A Home Assistant automation that compares your two MPPT strings and warns you the moment one drifts — early warning for shading, a dead module or a loose MC4 connector, with a night-time false-alarm guard.

Home Assistant is a powerful open source platform for home automation. For hosting, the use of a Linux VM in Azure and Docker is a good option.

How I run Shelly Plus 1PM/2PM behind my wall switches in Home Assistant — fully local switching plus per-channel energy metering, no cloud, physical switch kept.

A reusable Home Assistant pattern: one input_datetime helper per motion sensor that records the exact time of the last movement — the data foundation for presence heuristics and a tidy "last seen" dashboard, no expensive mmWave sensors needed.

A complete Home Assistant motion-light recipe with a choose: block that dims by time of day, a sensible off-delay, and the one tweak that actually stops the light flickering on and off.

A bare humidity number doesn't tell you when a cellar will condense. I added a cheap Tapo T310 to my H100 hub and turned it into a dew-point mold early-warning.

How I turned raw inverter registers into a real Home Assistant energy dashboard: reading, monitoring and acting on solar surplus, battery and switching.

How I update a Docker-based Home Assistant to a new version without breaking my smart home: full backup, update custom components first against the old core, recreate the container instead of in-place, note the image ID for a real rollback, and a post-update checklist.

A failure-mode playbook for a self-built Modbus cache proxy in Home Assistant: reconnect with backoff, stale-cache detection that HA can alert on, per-batch and client timeouts, and 50 ms spacing for a slow SDongle — so the proxy never silently serves zeros after a nightly drop or firmware reboot.

A caching Modbus proxy only solves reads. Here is the write-through path: pass FC6 register writes straight to the inverter on a short-lived connection, echo the response, return proper Modbus exceptions — so you can force-charge the battery or set power limits over a single shared connection.

Reading the AC·THOR 9s over Modbus TCP works, but writing is blocked at the device. Here's how I switched control to the undocumented my-PV Cloud API as a Home Assistant shell_command, with tested parameters and the gotchas nobody mentions.

Why your KNX thermostat ignores the temperature you set in Home Assistant — the five HVAC preset modes, the snap-back that looks like a bug, and how I automate them.

Building a security dashboard in public: simulated sensors, a debounced trigger, dual logging, and the one decision that mattered most — what NOT to show.

I didn't want Home Assistant to be a slave to the JUNG alarm panel. So I inverted ownership: HA owns the alarm state and pushes it back onto the KNX bus.

I wired an AC·THOR 9s into Home Assistant to dump PV surplus into the hot-water tank — then the device refused every Modbus write. Here's the read-local, write-cloud fix.

My inverter cloud shows self-consumption and autarky as pretty graphs. Home Assistant gives you raw counters. Here's how I rebuilt those numbers as template sensors I own.

In this story, we’ll explore HACS (Home Assistant Community Store), why it’s a game-changer, and how to get started with it.

There are several ways to manage content (Creating, updating, deleting, and delivering content). Let’s do a deep dive into this CMS's REST capabilities.