A SDR dongle is a device originally used to tune receive analog TV signals. Open source developers have recently designed tools to reprogram the device so that tuning into a frequency is now as simple as "point and shoot".
A software defined radio (SDR) with a set of buttons and dials to tune into FM radio stations, set and tune into “favorite” radio station frequencies, and adjust radio volume. The entire project was designed and implemented within 24 hours at the Ohio State University Spring 2016 Makeathon.
Project uses MSP 430 launchpad and a USB serial connection to PC to receive user input from hardware controls. The PC runs a python program which inputs signals from MSP430 launchpad. The program uses this data to control the SDR. The SDR controls are implemented via python code, and several scripts are generated from a GNU Radio control diagram.