Multiple projects discover hidden software-defined radio capabilities in ESP32 chips

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Independent research projects have identified undocumented software-defined radio (SDR) functionality within ESP32 microcontrollers. The discoveries were made public through technical reports and community discussions on platforms like Hacker News. These hidden capabilities allow the low-cost chips to perform radio signal processing tasks beyond their documented specifications. The findings highlight unexplored potential within widely available hardware. This could enable new low-cost SDR applications, though the full implications are still being explored.

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