ESP-SDR uses undocumented raw I/Q capture of ESP32 to make software defined radios

· Adafruit Industries Blog · Sept. 30, 2026, 9:21 p.m.
Radio sdr Software Defined Radio iot Signal processing Software Defined Radio esp32
Summary
ESP-SDR is a new firmware by Florian Euchner that transforms the ESP32's 2.4 GHz Wi-Fi radio into a software defined radio (SDR), allowing users to capture raw I/Q samples for signal analysis without needing additional SDR hardware.
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