Controlling a relay from Home Assistant

By seb, in Internet of Things, february 16,2025.

Some time ago, we looked at how to build a smart extension cord and how to use it to monitor the consumption of an electrical appliance with Home Assistant. We're going to enhance this Home Assistant integration by adding the ability to switch this extension cord from Home Assistant.

Improved humidity-sensitive ventilation

By mvuilleu, in Internet of Things and Measures, february 03,2025.

A few weeks ago, we showed you how to monitor the operation of humidity-sensitive ventilation (type B) with Home Assistant. We left off with the observation that, in some cases, the mechanical humidity-sensitive setting is not ideal. So let's take a look at how a little home automation, used wisely, can improve the system's energy performance.

Humidity-sensitive ventilation and Home Assistant

By mvuilleu, in Measures and Internet of Things, january 10,2025.

When insulating a house as part of an energy-efficiency renovation, it's essential to provide ventilation to evacuate any moisture that might accumulate inside. Since it's generally not possible to install a double-flow ventilation system after the fact, the recommended method is to use humidity-sensitive ventilation, which selectively ventilates the rooms that need it most. But does it really work? Let's find out with Yoctopuce modules and the Home Assistant home automation platform.

Upcycling an old fan

By mvuilleu, in DIY, Internet of Things and Measures, september 27,2024.

Almost ten years ago, we showed you how to combat humidity in a room using humidity-controlled ventilation. The system described had just then been installed in a cellar, where it worked efficiently until very recently. Unfortunately, the discovery of mold alerted us to a problem, and a quick check revealed that the system had broken down: the fan controlling the air intake had died.

A decorative IoT and PoE lamp

By martinm, in DIY and Internet of Things, september 13,2024.

To tell you the truth, this week we had planned to continue our series on USB batteries, but it turns out that the associated experiments are taking longer than expected. Actually, this is rather good news, but this also means we had to fall back on an emergency topic...