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  • v0.5.2-esp32 9814d2bc62
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    fix(server): correct RSSI byte offset in frame parser (#332)

    frostbyte_neo 发布于 2026-03-30 15:54:03 +00:00

    The server parsed rssi from buf[14] and noise_floor from buf[15], but
    the firmware (csi_collector.c) packs them at buf[16] and buf[17]:

    Firmware: n_subcarriers=u16(6-7) freq=u32(8-11) seq=u32(12-15) rssi=i8(16)
    Server: n_subcarriers=u8(6) freq=u16(8-9) seq=u32(10-13) rssi=i8(14) ← WRONG

    This caused RSSI to read the high byte of the sequence counter instead
    of the actual signed RSSI value, producing positive values (e.g., +9)
    instead of the correct negative values (e.g., -46 dBm).

    Added inline documentation of the frame layout matching csi_collector.c.

    Closes #332

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