How to calibrate a CO2 sensor?

By mvuilleu, in Measures and Misc, may 01,2015.

CO2 sensors are increasingly popular to monitor air quality at home and in business premises. So much so that we tend to forget that the measures are based on rather advanced technologies, requiring some precautions if we want to make sure that we obtain valid measures. So, do we need to calibrate a CO2 sensor and, if we do, how should we do it?

Which altimeter to use ?

By seb, in Measures, april 24,2015.

We have two modules that can compute the altitude: the Yocto-GPS and the Yocto-Altimeter. These two modules determine the altitude with two radically different methods. Lets have a look at the advantages and disadvantages of both.

New! The Yocto-MaxiThermistor

By martinm, in Measures and New stuff, march 06,2015.

This week, we present the newest module in the range of Yoctopuce temperature sensors: the Yocto-MaxiThermistor. The ideal product if you need to measure temperature at several locations.

Light sensors comparison

By mvuilleu, in Reviews, New stuff and Measures, january 23,2015.

Some time ago, we had to stop making the Yocto-Light because the OSRAM light sensor that we used on this module stopped being produced. As a replacement, we now offer two products: the Yocto-Light-V2, more reactive, based on an AVAGO sensor, and the Yocto-Light-V3, truer to the human eye, based on a ROHM sensor. Let's see how they compare...

First tests of the LIDAR-Lite telemeter

By mvuilleu, in DIY, Measures and Reviews, january 09,2015.

When you wanted to measure a distance at a precise location, there wasn't, up to now, any middle range between very expensive laser telemeters (of the Baumer type) and cheap sensors (of the Sharp type). These cheap sensors don't provide a real measured value and are very limited distance-wise. Therefore, we were particularly interested in the LIDAR-Lite project which announced a distance measure of several meters for under $100. Nine months later, the baby is here at last and we can test the final version of the product to try out this new technology.