Reading Time: 2 minutes Arduino Team — June 30th, 2022 Some things, like voltage, are very easy to measure. Other things, like the chemical composition of a compound? Not so much. Emissions from internal combustion engines are one of those things that are hard to measure. But Janis Alnis needed a way to measure his diesel soot emissions so…… DIY diesel emissions monitor is a lesson in spectroscopy weiterlesen