Tech article
Various Projects Find Hidden SDR Capabilities in ESP32 Microcontrollers
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Hacker News | Oct 1, 2026 | nkw
Automated excerpt
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. Furthermore, ESPARGOS notes that phase-coherent IQ sample capture is now possible with their hardware. C5VRX uses an ESP32-C5 as a 5. 8 GHz real-time FPV video receiver.
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