New! the Yocto-CO2-V2

By martinm, in New stuff, december 28,2018.

This week, we present the Yocto-CO2-V2, successor of the Yocto-CO2, which has a sensor that is starting to be obsolete. Let's see what this is all about ...

Using our libraries under Linux aarch64 or arm64

By seb, in Programming, december 21,2018.

A few customers have asked us whether we supported Linux aarch64 or arm64, that is a Linux which uses an 64-bit ARM processor. The answer is yes and no. We don't provide pre-compiled binaries for these platforms, so by default our libraries don't work. But you can recompile our libraries to make them work properly. Explanations...

USB cables: shielding matters as well...

By mvuilleu, in Reviews and Electronics, december 14,2018.

Six years ago, we wrote a post on the influence of the electric resistance of USB cables on the proper working of peripheral devices. Today, we are going to talk about a little-known related problem, which drove us to change our USB cable provider: the shielding of USB cables.

A weather station with MQTT and Node-Red

By thibaut, in DIY and Internet of Things, december 07,2018.

We already discussed home-made weather stations in our blog, but none before had this "pagoda" design or used this messaging protocol. That's why we are writing a new post. The aim of this "low cost" weather station is to build it with materials as basic as possible

Adding series to Yocto-Visualization

By martinm, in Programming and Electronics, november 30,2018.

Customers have asked us several times why Yocto-Visualization offers only 4 data series per graph and whether it is possible to have more. The explanation is simple: we had to choose a limit, and a maximum of 4 seemed reasonable. Nevertheless, it's rather easy to modify the application to have more series, and this week we show you how to do so.