Measuring noise and sound loudness

By mvuilleu, in Measures and Reviews, october 24,2025.

A sound pressure sensor, or noise sensor, is one of those sensors that we've been asked for several times, but don't yet offer. The small on-board processors we use in our modules don't have the computing power to make this measurement, and until now we haven't found an external component we could integrate that met our quality criteria. But there is hope that this will change...

macOS and Yoctopuce applications

By seb october 17,2025.

If you've launched VirtualHub on the latest versions of macOS, you will have noticed that the OS refuses to start the application, as it considers it "potentially dangerous". Spoiler alert, this is not the case. This week, we explain why this message appears and how to launch VirtualHub on macOS.

Yocto-3D-V2-C, Yocto-MilliVolt-Rx-BNC-C, and Yocto-PWM-Tx-C

By martinm, in New stuff, october 10,2025.

Once again this week, Yoctopuce announces some new conversions of Yoctopuce modules to USB type-C connectivity. These are the Yocto-3D-V2-C, the Yocto-MilliVolt-BNC-C, and the Yocto-PWM-Tx-C. Yes, all these announcements of USB-C modules can get a bit tiresome in the long run, but what can I say, we've got to talk about them if we want people to realize they exist and buy them :-)

How to sort objects by color?

By Tiago, in Measures and DIY, october 03,2025.

A few months ago, Yoctopuce launched a color sensor based on the spectral analysis of light. This module not only provides raw measures, but it also estimates the color of the object that produced the measured spectrum. As there is no mathematical formula directly applicable to this task, this feature has required a fair amount of experimentation to verify the reliability of the obtained results. Today, we present one of the test methods we used.

Correcting the linearity of a PMP24 proportional relay

By mvuilleu, in Electronics and Measures, september 26,2025.

Specialized online stores offer a variety of proportional control solid-state relays, enabling you to control, for example, the output power of a resistive heating element more precisely than with a simple on/off relay. However, these components are often not as proportional as their name suggests, which can affect how the control process works. So we're going to take a few measures to see if this can be improved.