Jared Boone displayed this project at the recent Maker Faire.
This project is built around the HackRF, a software-defined radio transceiver. I programmed it to sample 20MHz of radio spectrum from an antenna, do a frequency analysis on the data, and display the results on a Noritake vacuum fluorescent display. I added the tuning wheel mid-afternoon on Sunday, and it really improved the interactivity of the display. It felt really cool to spin the wheel around and watch the spectrum scroll back and forth. Too bad I didn’t capture that in the video…
Project details can be found at SharedBrain Technology.