Handheld measuring devices make great DIY projects. One can learn a lot about a sensor or sensor technology by just strapping it onto a spare development board together with an LCD for displaying ...

You can imagine why testing his air quality might be something ... curious how the $12 sharp sensor he found would stack up. To find out, he plugged it into an arduino and started logging both ...

If you have ever wondered what the air quality ... sensor is included as these conditions can impact the performance of the gas sensors.” Full instructions on how to build your very own DIY ...