NodeConf Barcelona 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. apt-get install node @wa7son
3. apt-get install node @wa7son
4. apt-get install nodejs @wa7son
5. JavaScript Powered Radio Build you own @wa7son
6. 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
7. JavaScript Powered Radio Build you own @wa7son
8. An introduction to Software Defined Radio in Node.js @wa7son
9. An introduction to SDR in Node.js @wa7son
10. Radio 101 @wa7son
11. Normal Radio @wa7son FM or AM
12. Normal Radio @wa7son
13. SDR (quadrature) @wa7son
14. @wa7son
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19. Demo Time Modulation @wa7son
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22. Demo Time Commercial SDR @wa7son
23. @wa7son Expensive: €5,350
24. Demo Time RTL SDR @wa7son
25. @wa7son • DVB-T • DAB • FM Marketed as TV / radio tuner for: Contains a Realtek RTL2832U chip Supports approx. 24 MHz – 1766 MHz Hackable! Cheap: $10 - $20
26. Demo Time Cue for Demo @wa7son
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31. Demo Time HackRF One @wa7son
32. @wa7son Funded by: Affordable: $299
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35. 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
36. Demo Time Demo Time! @wa7son
37. @wa7son
38. Demo Time Use Cases @wa7son
39. • FM • ADS-B • GSM (Wireshark) • GPS • Streaming data over radio @wa7son • Doorbells • Car keys • Wi-Fi jamming Use Cases
40. References github.com / watson / monster-drift github.com / mappum / node-hackrf greatscottgadgets.com / sdr @wa7son
41. @wa7son github.com/watson Gracias (Pssst, we’re hiring)