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THE SOTH JOURNAL

Lighting and climate

Ideas, know-how, and a little inspiration for your connected home.

WORTH A CLOSER LOOK

Lighting and climate

Philips Hue app 6.4.0 turns on Custom AI Behaviors for the Bridge Pro, but automations the AI builds cannot be edited by hand

Custom AI Behaviors, the natural-language automation feature Philips Hue announced at IFA in September, are now live. They arrive with version 6.4.0 of the Hue app, which Hueblog reported on October 29, 2026 as available in Apple's App Store, with the Google Play release expected soon. Last week Hue shipped Bridge Pro firmware that prepared the bri
Oct 29, 2026
3
min read

Smart radiator thermostats: check your valves, pick a protocol and get the temperature right

A smart radiator thermostat replaces the head on a radiator valve with a small battery-powered motor that opens and closes the valve on a schedule or on command. It is a simple way to give each room its own schedule, and some models are now very cheap: IKEA's Thread-based LILJEBAGGE already sells in Sweden for 199 kronor, and heise reports a German
Oct 29, 2026
8
min read

Xiaomi Smart Display Switch 2 brings a colour screen and mmWave radar to wall switches without a neutral wire

Most wall switches with a colour screen need a neutral wire, because the display has to be powered all the time. Xiaomi's new Smart Display Switch 2, listed in China on 28 October 2026, tries to get round that. It works with or without a neutral, and in single-wire installations it runs the screen from a built-in energy store. Crowdfunding opens on
Oct 28, 2026
3
min read

Build a WLED controller with an ESP32: wire an addressable LED strip, flash it from the browser and set it up safely

WLED is open-source firmware that turns an ESP32 or ESP8266 into a controller for addressable LED strips. It gives you a web interface, an app, effects, presets and a JSON API that all work on your local network, with no cloud account. This guide builds a basic controller for a 5 V WS2812B strip on an ESP32. It covers wiring, flashing with the web
Oct 28, 2026
10
min read

How to control an air conditioner over infrared with an ESP32 and ESPHome

Most split air conditioners and many portable units are controlled by an infrared remote. If the unit has no Wi-Fi module, or its Wi-Fi only works through the manufacturer's cloud app, an ESP32 with an IR LED can take over the remote's job. ESPHome has a family of climate platforms that do more than replay recorded buttons: they build the full IR c
Oct 27, 2026
10
min read

ESPHome fixes Fahrenheit limits in climate configs and adds units to template climate and water heater

Two ESPHome changes merged over the weekend deal with climate devices that do not work in Celsius. The first, by Johan Henkens (jhenkens), reviewed by bdraco and merged on 25 October 2026, adds a unit_of_measurement option to the template climate and the template water heater and fixes how visual temperatures are converted on platforms that report
Oct 26, 2026
3
min read