Thank you to Peter Holzhauser for writing in and sharing his latest open-source project, "Etherbulb," a technical-art project that builds on his ESPSoup project that we previously posted. Etherbulb turns an ESP32-C3-based smart bulb into an ambient RF spectrum monitor. Etherbulb uses the ESP-SDR discovery to capture IQ data at 80 MSps 25 times per […]

PySDR is a free online textbook (not a Python library!) that provides a gentle introduction to wireless communications and software-defined radio (SDR) using an abundance of diagrams, animations, and ...

W1700K SDR 은 Gemtek W1700K Wi-Fi 7 라우터의 MT7996 무선 칩으로 최대 320 Msps의 14비트 IQ 데이터를 수집하고, 10 GbE로 Linux 호스트에 전달해 브라우저에서 실시간 스펙트럼과 워터폴을 표시함 MT7996은 MediaTek 코드가 없는 자체 펌웨어 만으로 전원 인가부...

Contribute to h0m3us3r/w1700k-sdr development by creating an account on GitHub.

Real IQ from an ESP32-S3 running ESP-SDRover the plain USB cable

ESP32に内蔵されたWi-Fi用の受信回路から生の電波のデータを取り出し、追加部品なしでSDR（ソフトウェア無線）にするファームウェア「ESP-SDR」が公開された。LLMの助けで文書化されていない経路を見つけ、8種類のチップに対応する。

ESPARGOS is a phase-coherent, ESP32-based WiFi antenna array designed for low-cost sensing applications.

Back in 2025, we posted about ESPARGOS, a phased array of many patch antennas, each connected to an ESP32 WiFi microcontroller. ESPARGOS could be used to determine the direction of arrival for WiFi signals and create a live augmented reality heatmap. Recently, the ESPARGOS team has made an exciting discovery. They found that several ESP32 chips have an undocumented feature that lets the firmware bypass the fixed WiFi and Bluetooth functionality and instead capture raw IQ baseband samples. As a result, several ESP32 models can now be used as an internal SDR covering 2.2–2.7 GHz, plus 4.8–6.0 GHz on the

ESPARGOS is a phase-coherent, ESP32-based WiFi antenna array designed for low-cost sensing applications.

ESPARGOS is a phase-coherent, ESP32-based WiFi antenna array designed for low-cost sensing applications.

Back in 2025, we posted about ESPARGOS, a phased array of many patch antennas, each connected to an ESP32 WiFi microcontroller. ESPARGOS could be used to determine the direction of arrival for WiFi signals and create a live augmented reality heatmap. Recently, the ESPARGOS team has made an exciting discovery. They found that several ESP32 chips have an undocumented feature that lets the firmware bypass the fixed WiFi and Bluetooth functionality and instead capture raw IQ baseband samples. As a result, several ESP32 models can now be used as an internal SDR covering 2.2–2.7 GHz, plus 4.8–6.0 GHz on the

ESPARGOS is a phase-coherent, ESP32-based WiFi antenna array designed for low-cost sensing applications.