With some software-defined radio tools, it’s also possible to use radar for tracking aircraft in real-time at home like this DIY radar system. Unlike active radar systems which use a specific ...

The system here costs about $225, so it’s really only worth it if you have a nicer bike. That said, it’s pretty easy to build using an Arduino, a GSM shield, a GPS system, and a handful of ...

DIY star tracker built using Arduino Uno. 12:59 pm January 20, ... The 3D printable system is powered by an Arduino Uno microcontroller and has been designed and built by Ondra Gejdos.