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Check out a SDR based on the Teensy
Teensy SDR Panel from Open Emitter
Teensy Panel from Open Emitter
Several months ago I used my first software defined radio (SDR). This was a USB Dongle that did the digitizing and used Gqrx and GNU Radio for the actual decoding. Playing with an SDR is really fun. At the time I thought about using my Pi as the decoder, but found some performance issues. Imagine my surprise when I saw this project.

On rheslip’s Open Emitter blog, he has a project which turns a Teensy into a SDR. His latest update includes an enclosure for the project, making it a nice all-in one package.

At only 87mA it is slightly more power efficient than my PC-based or Pi-based setup.

What is a Teensy?

If you aren’t familiar with the Teensy, they are Arduino-compatible boards from PJRC. The Teensy 3.1, which is what this SDR project uses, is an ARM M4 with 256k of FLASH, 64k of RAM, and a 96MHz clock. Oh and it only costs $20.

You can find out more about the Teeny 3.1 here.

Teensy SDR Video Demo

Fan of making things beep, blink and fly. Created AddOhms. Stream on Twitch. Video Host on element14 Presents and writing for Hackster.IO. Call sign KN6FGY.

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