NodeConf Budapest 2017: Build Your Own JavaScript Powered Radio

Capture and transmit radio waves using software (and just a tiny bit of hardware). This talk is about SDR (Software Defined Radio) and how you can listen to and transcode the radio spectrum using Node.js. It allows you to interact with IoT devices, debug cellular meta-data, and intercept commercial and private airplane communication.

Transcript

1. Thomas Watson @wa7son github.com/watson
2. JavaScript Powered Radio @wa7son Build you own
3. Who is this guy anyway? • Thomas Watson • Open Source developer at github.com/watson • Node.js Lead at Opbeat • Member of the Diagnostics Working Group under the Node.js Foundation • Tweets as @wa7son @wa7son
4. JavaScript Powered Radio @wa7son Build you own
5. Software Defined Radio @wa7son An introduction to in Node.js
6. SDR @wa7son An introduction to in Node.js
7. Radio 101 @wa7son
8. Normal Radio @wa7son
9. SDR (quadrature) @wa7son
10. @wa7son
11. @wa7son
12. @wa7son Waves are in quadrature (90°)
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15. Demo Time HackRF One @wa7son
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19. HackRF One Specs • 1 MHz to 6 GHz operating frequency • Half-duplex transceiver • Up to 20 million samples per second • 8-bit quadrature samples (8-bit I and 8-bit Q) • Compatible with GNU Radio, SDR#, and more • Software-configurable RX and TX gain and baseband filter • Software-controlled antenna port power (50 mA at 3.3 V) @wa7son • SMA female antenna connector • SMA female clock input and output for synchronization • Convenient buttons for programming • Internal pin headers for expansion • Hi-Speed USB 2.0 • USB-powered • Open source hardware
20. Demo Time Demo Time! @wa7son
21. @wa7son
22. Demo Time Modulation @wa7son
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25. Demo Time Use Cases @wa7son
26. • FM • ADS-B • GSM (Wireshark) • GPS • Streaming data over radio @wa7son • Doorbells • Car keys • Wi-Fi jamming Use Cases
27. @wa7son
28. Demo Time Cue for Demo @wa7son
29. References github.com / watson / monster-drift github.com / mappum / node-hackrf greatscottgadgets.com / sdr @wa7son
30. @wa7son github.com/watson Köszönöm (Pssst, we’re hiring)