SDR lets you peek into the invisible world of RF, or radiofrequency!
The Raspberry Pi is a great tool for SDR, and in this video I finally tested it with the CaribouLite I bought a couple years ago.
See my blog post for full setup instructions: https://www.jeffgeerling.com/blog/2025/cariboulite-sdr-hat-sdr-on-raspberry-pi
More resources (as an Amazon Associate, I earn for qualifying purchases):
- CaribouLite: https://www.crowdsupply.com/cariboulabs/cariboulite-rpi-hat
- RTL-SDR v4 kit: https://amzn.to/3WzId5R
- Project MINI RACK: https://mini-rack.jeffgeerling.com
- LabStack mini modular printable mounts: https://github.com/JaredC01/LabStack
- Raspberry Pi SMI: https://iosoft.blog/2020/07/16/raspberry-pi-smi/
Support me on Patreon: https://www.patreon.com/geerlingguy
Sponsor me on GitHub: https://github.com/sponsors/geerlingguy
Merch: https://www.redshirtjeff.com
2nd Channel: https://www.youtube.com/@GeerlingEngineering
3rd Channel: https://www.youtube.com/@Level2Jeff
Contents:
00:00 - A peek behind the curtains
01:14 - Setting up CaribouLite with a Pi
02:13 - Driver and software installation
03:32 - GQRX SDR intro
09:29 - Testing CaribouLite SDR, decoding signals
10:53 - Is a Pi 4 enough?
12:18 - Mini Rack and PoE SDR setup
15:06 - Remote SDR and a WiFi issue
17:40 - It's like magic