He didn’t have any equipment to test the sensor, but he did have an RTL-SDR dongle and some know-how to figure out how to listen in on the sensors. The key was to use some software called RTL ...

One of the best ways to learn about radios is to build your own, even in the age of cheap SDR dongles. [Aniss Oulhaci] demonstrates this with a simple HF SDR receiver built on a breadboard.

A USB RTL-SDR dongle is used to retrieve flight information. Mitchell was kind enough to make the project open source and has shared information about how he's programmed the flight tracking ...