An RTL-SDR library written in Rust!
RTL-SDR is a family of low-cost (~$30) USB software-defined radio (SDR) receivers that can tune a wide range of frequencies which are then processed in software (thus the 'software' in SDR).
They can receive all kinds of signals such as FM radio (see the simple_fm example in this project), aircraft radio and position data (like what you see on adsb-exchange), weather satellite imagery, and more!
rtl-sdr.com has a great page with much more explanation.
You can run the example FM radio receiver with the following command on Mac:
cargo run --example simple_fm | play -r 32k -t raw -e s -b 16 -c 1 -V1 -
and similarly on Linux:
cargo run --example simple_fm | aplay -r 32k -f S16_LE
If the RTL kernel modules are installed you will need to temporarily unload them before using this library as follows:
sudo rmmod rtl2832_sdr
sudo rmmod dvb_usb_rtl28xxu
sudo rmmod rtl2832
sudo rmmod rtl8xxxu
Failure to do so will result in the following USB error:
thread 'main' panicked at 'Unable to open SDR device!: Usb(Busy)'
The example is thoroughly documented to clearly show how to use this library, and hopefully make the FM demodulation process understandable too!
This library includes the RTL-SDR Blog modifications to the original Osmocom library as a feature. Enable it in cargo with the --features rtl_sdr_blog flag.
Contributions to this project are welcome! Check out the Issues page to see what's on the roadmap that you could help with, or open a new Issue.
This library originated as a port of the Osmocom rtl-sdr library, with modifications from the RTL-SDR Blog fork.