{"slug": "espdr", "name": "eSpDR", "category": "selfhosted", "category_name": "Self-hosted and home server", "description": "", "recommenders": 3, "commenters": 3, "warners": 0, "score": 2.951, "rising": 3.0, "first": "2026-10-01", "latest": "2026-10-12", "why": "This same devloper also built an SDR out of an ESP32 Wi-Fi microcontroller [1], this is awesome!", "why_is_quote": true, "has_verdict": false, "sentiment": {"recommend": 3, "neutral": 0, "compare": 0, "warn": 0}, "spark": [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3], "listed": true, "loved": [], "caveat": "", "short_quote": "This same devloper also built an SDR out of an ESP32 Wi-Fi microcontroller [1], this is awesome!", "kind": "", "icon": true, "domain": null, "github_repo": "github.com/h0m3us3r/espdr", "official_url": "https://github.com/h0m3us3r/espdr", "pricing": "", "aliases": ["eSpDR"], "verdict": null, "praise": [{"label": "", "summary": "", "quotes": [{"id": 800956352, "item_id": 50059772, "url": "https://news.ycombinator.com/item?id=50059772", "by": "yonatan8070", "date": "2026-10-12", "stance": "recommend", "quote": "This same devloper also built an SDR out of an ESP32 Wi-Fi microcontroller [1], this is awesome!", "excerpt": "This same devloper also built an SDR out of an ESP32 Wi-Fi microcontroller [1], this is awesome! This development makes me hope that we'd be seeing more of these on common Wi-Fi cards, so that every random laptop could be used as an SDR for many fun and useful applications on a budget. https://github.com/h0m3us3r/eSpDR", "context": "", "use_case": "software defined radio", "switched_from": "", "story": "Turn a WiFi 7 Router into a 320Msps Software Defined Radio Receiver"}, {"id": 798982016, "item_id": 49936376, "url": "https://news.ycombinator.com/item?id=49936376", "by": "jcims", "date": "2026-10-02", "stance": "recommend", "quote": "they found a way to tinker with the LO to allow fixed tuning to a lower range", "excerpt": "Not sure if it helps with the S3 specifically but they found a way to tinker with the LO to allow fixed tuning to a lower range - https://github.com/h0m3us3r/eSpDR/blob/main/docs/LO-EXTENSION.md", "context": "", "use_case": "", "switched_from": "", "story": "Various Projects Find Hidden SDR Capabilities in ESP32 Microcontrollers"}, {"id": 798809920, "item_id": 49925620, "url": "https://news.ycombinator.com/item?id=49925620", "by": "xd1936", "date": "2026-10-01", "stance": "recommend", "quote": "Very exciting!", "excerpt": "Very exciting! > However, the current prototype uses the FPGA to clock the ESP32, which results in poor phase noise. Looks like this was solved five days ago: https://github.com/h0m3us3r/eSpDR/commit/41a0ffe279119df942e4a9e892dc19d196e1c952", "context": "", "use_case": "SDR on ESP32", "switched_from": "", "story": "Various Projects Find Hidden SDR Capabilities in ESP32 Microcontrollers"}]}], "caveats": [], "who": [], "tags": [], "use_cases": ["software defined radio", "sdr on esp32"], "compared": [], "makers": [], "threads": [{"url": "https://news.ycombinator.com/item?id=49922674", "title": "Various Projects Find Hidden SDR Capabilities in ESP32 Microcontrollers", "mentions": 2}, {"url": "https://news.ycombinator.com/item?id=50055593", "title": "Turn a WiFi 7 Router into a 320Msps Software Defined Radio Receiver", "mentions": 1}], "sentiment_by_month": {"2025-11": {}, "2025-12": {}, "2026-01": {}, "2026-02": {}, "2026-03": {}, "2026-04": {}, "2026-05": {}, "2026-06": {}, "2026-07": {}, "2026-08": {}, "2026-09": {}, "2026-10": {"recommend": 3}}, "quotes": [{"id": 800956352, "item_id": 50059772, "url": "https://news.ycombinator.com/item?id=50059772", "by": "yonatan8070", "date": "2026-10-12", "stance": "recommend", "quote": "This same devloper also built an SDR out of an ESP32 Wi-Fi microcontroller [1], this is awesome!", "excerpt": "This same devloper also built an SDR out of an ESP32 Wi-Fi microcontroller [1], this is awesome! This development makes me hope that we'd be seeing more of these on common Wi-Fi cards, so that every random laptop could be used as an SDR for many fun and useful applications on a budget. https://github.com/h0m3us3r/eSpDR", "context": "", "use_case": "software defined radio", "switched_from": "", "story": "Turn a WiFi 7 Router into a 320Msps Software Defined Radio Receiver"}, {"id": 798982016, "item_id": 49936376, "url": "https://news.ycombinator.com/item?id=49936376", "by": "jcims", "date": "2026-10-02", "stance": "recommend", "quote": "they found a way to tinker with the LO to allow fixed tuning to a lower range", "excerpt": "Not sure if it helps with the S3 specifically but they found a way to tinker with the LO to allow fixed tuning to a lower range - https://github.com/h0m3us3r/eSpDR/blob/main/docs/LO-EXTENSION.md", "context": "", "use_case": "", "switched_from": "", "story": "Various Projects Find Hidden SDR Capabilities in ESP32 Microcontrollers"}, {"id": 798809920, "item_id": 49925620, "url": "https://news.ycombinator.com/item?id=49925620", "by": "xd1936", "date": "2026-10-01", "stance": "recommend", "quote": "Very exciting!", "excerpt": "Very exciting! > However, the current prototype uses the FPGA to clock the ESP32, which results in poor phase noise. Looks like this was solved five days ago: https://github.com/h0m3us3r/eSpDR/commit/41a0ffe279119df942e4a9e892dc19d196e1c952", "context": "", "use_case": "SDR on ESP32", "switched_from": "", "story": "Various Projects Find Hidden SDR Capabilities in ESP32 Microcontrollers"}]}