{"ok":true,"trend":{"id":371212,"platform":"hn","region":"global","key":"esp-sdr: raw iq capture with espressif's esp32 chips","title":"ESP-SDR: Raw IQ Capture with Espressif's ESP32 Chips","url":"https://espargos.net/espsdr/","first_seen":"2026-09-29T15:05:47.561146Z","last_seen":"2026-09-30T12:59:45.373342Z","last_rank":12,"peak_rank":10,"last_volume":6,"peak_volume":6,"seen_count":17,"score":66.02,"category_hint":"semiconductors","section":"technology","category":"semiconductors","summary":"A project called ESP-SDR demonstrates using Espressif's ESP32 chips to capture raw IQ samples, effectively turning low-cost Wi-Fi hardware into a software-defined radio front end. The ESP32's ability to stream in-phase and quadrature data opens the door to cheap RF experimentation and wireless research. Readers are discussing the technical achievement of squeezing raw capture out of hobbyist-grade silicon, with interest in what applications this enables for spectrum monitoring and signal analysis.","why":"The hacker community is excited by repurposing cheap ESP32 chips as software-defined radio hardware.","tone":"positive","entities":["Espressif","ESP32","ESP-SDR","Jeija"],"summarized_at":"2026-09-30T09:15:47.485221Z","meta":{"via":"scan","lang":"en","link":"https://espargos.net/espsdr/","term":"chips","comments":0},"nw":null,"promo":null,"kind":null,"importance":null,"hidden":false,"hide_reason":null,"judged_at":null,"title_en":"ESP-SDR Turns ESP32 Chips into Raw IQ Capture Tool","section_name":"Technology","category_name":"Semiconductors","timeline":[{"captured_at":"2026-09-29T15:05:47.561146Z","rank":12,"volume":6},{"captured_at":"2026-09-29T16:27:47.754419Z","rank":10,"volume":6},{"captured_at":"2026-09-29T17:49:47.541273Z","rank":10,"volume":6},{"captured_at":"2026-09-29T19:11:47.718104Z","rank":10,"volume":6},{"captured_at":"2026-09-29T20:33:47.657696Z","rank":10,"volume":6},{"captured_at":"2026-09-29T21:55:47.956633Z","rank":11,"volume":6},{"captured_at":"2026-09-29T23:17:47.741203Z","rank":11,"volume":6},{"captured_at":"2026-09-30T00:40:02.707029Z","rank":11,"volume":6},{"captured_at":"2026-09-30T02:02:02.322738Z","rank":11,"volume":6},{"captured_at":"2026-09-30T03:24:23.430609Z","rank":11,"volume":6},{"captured_at":"2026-09-30T04:47:03.737019Z","rank":12,"volume":6},{"captured_at":"2026-09-30T06:09:45.298425Z","rank":12,"volume":6},{"captured_at":"2026-09-30T07:31:45.348408Z","rank":12,"volume":6},{"captured_at":"2026-09-30T08:53:45.392749Z","rank":12,"volume":6},{"captured_at":"2026-09-30T10:15:45.925146Z","rank":12,"volume":6},{"captured_at":"2026-09-30T11:37:45.479656Z","rank":12,"volume":6},{"captured_at":"2026-09-30T12:59:45.373342Z","rank":12,"volume":6}],"posts":[{"platform":"hn","url":"https://news.ycombinator.com/item?id=49882348","author":"Jeija","title":"ESP-SDR: Raw IQ Capture with Espressif's ESP32 Chips","snippet":null,"posted_at":"2026-09-28T18:30:33Z","likes":6}],"elsewhere":[],"window":"7d"}}