When comparing the Raspberry Pi and Arduino ... projects also means having to learn how to use the command line interface (CLI). This is because most of the time, you'll be using sensors and ...

Being able to measure ducted airflow cheaply and non-intrusively, like with this ultrasonic flow meter, could be a big deal for DIY projects ... sensor. [ItMightBeWorse] is using readily available ...

While it’s not radar, subbing in ultrasonic sensors is how [Dzl] built this sonar imaging system using a lot of radar principles. Initial experiments centered around the ubiquitous dual ...