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Various Projects Find Hidden SDR Capabilities in ESP32 Microcontrollers

288 points · 67 comments · nkw

  1. mrheosuper · · focus · HN ↗
    The ESP32S3 support PSRAM, can we redirect the sample to PSRAM, then hooking Logic Analyzer on PSRAM, thus getting the sample directly, not through any digital interface. (There is cache before PSRAM, but should be trivial to sync).
    1. ACCount39 · · focus · HN ↗
      Wouldn't that just be limited to the speed of SPI that PSRAM is hooked to? Might as well blast it out of SPI itself.
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