A connected dry box

By seb, in DIY, january 23,2025.

This week, we're going to do a simple DIY project that will be of interest to anyone involved in 3D printing. We're going to make a box for storing filaments while monitoring humidity.

Timing, RFID, and radio-controlled cars

By martinm, in DIY, january 17,2025.

In addition to reading and writing tags, the Yocto-RFID-15693 module API allows you to program a callback that is called every time a tag enters or leaves the antenna field. And these callbacks are time-stamped. It's only a short step from there to using this feature to build a stop-watch application, a step we didn't hesitate to take.

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.

Compiling the command line

By seb january 05,2025.

When we introduced version 2.0 of the command line library, we modified our compilation scripts and realized that we had never explained how to compile the command line library.

Solar weather station (2024 edition)

By martinm, in DIY, december 27,2024.

Ever since we moved into our new premises, we've been doing our utmost to keep the floor housing all our production machines and component stock at a reasonable level of humidity. For severe peaks in humidity, typically in Summer after a storm, we use a dehumidifier, but for mild cases, we simply open the windows. But you still need to do it at the right time...